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  this is information on a product in full production. june 2012 doc id 018687 rev 3 1/40 1 stbp110 overvoltage protection device datasheet - production data features input overvoltage protection up to 28 v integrated high voltage n-channel mosfet switch - low r ds(on) of 170 m integrated charge pump maximum continuous current of 1.2 a thermal shutdown soft-start feature to control the inrush current enable input (en ) fault indication output (flt ) in input esd protection: 15 kv air discharge, 8 kv contact discharge (with 1 f input capacitor), 2 kv hbm (standalone device) certain overvoltage options compliant with the china communications standard yd/t 1591- 2006 (overvoltage protection only) small, rohs compliant 2 x 2 x 0.75 mm tdfn 8-lead package with thermal pad. applications smart phones digital cameras pda and palmtop devices mp3 players low power handheld devices. tdfn 8-lead (2 x 2 x 0.75 mm) www.st.com
contents stbp110 2/40 doc id 018687 rev 3 contents 1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 input (in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 output (out) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 fault indication output (flt ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 enable input (en ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.5 no connect (nc) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.6 ground (gnd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1 power-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2 normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.3 undervoltage lockout (uvlo) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.4 overvoltage lockout (ovlo) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.5 thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5 typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 typical operating characteristics (stbp110gt). . . . . . . . . . . . . . . . . . . . . . . . . . 14 6 maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 7 dc and ac parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 8 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 8.1 calculating the power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 8.2 calculating the junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 8.3 pcb layout recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 9 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 10 tape and reel information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
stbp110 contents doc id 018687 rev 3 3/40 11 part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 12 package marking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 13 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
list of tables stbp110 4/40 doc id 018687 rev 3 list of tables table 1. pin description and signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 table 2. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 table 3. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 table 4. operating and ac measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 table 5. dc and ac characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 table 6. package mechanical dimensions for tdfn 8-lead (2 x 2 x 0.75 mm) . . . . . . . . . . . . . . . . 33 table 7. carrier tape dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 table 8. further tape and reel information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 table 9. reel dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 table 10. ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 table 11. marking description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 table 12. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
stbp110 list of figures doc id 018687 rev 3 5/40 list of figures figure 1. logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 2. pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 4. typical application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 5. power-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 6. overvoltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 7. disable (en = high). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 8. recovery from ovp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 9. maximum mosfet current at t a = 85 c for various pcb thermal performance and t j 125 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 10. startup, t on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 11. overvoltage, t off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 figure 12. recovery from overvoltage, t rec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 figure 13. disable, t dis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 figure 14. startup to overvoltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 figure 15. startup to overvoltage (detail). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 16. soft-start performance for 10 f capacitive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 17. soft-start performance for 100 f capacitive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 18. i cc vs. temperature at v in = 5 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 19. i cc vs. v in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 figure 20. i cc vs. v in (detail) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 figure 21. i cc(stdby) vs. temperature at v in = 5 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 figure 22. i cc(stdby) vs. v in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 figure 23. i cc(stdby) vs. v in (detail) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 figure 24. v ovlo vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 figure 25. v uvlo vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 26. v ol(flt ) vs. temperature at i sink(flt ) = 5 ma, v in = 5 v . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 27. r ds(on) vs. temperature at 5 v, 1 a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 figure 28. v il(en ) vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 figure 29. v ih(en ) vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 figure 30. i (en ) vs. v in at v (en ) = 5 v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 figure 31. r pd(en ) vs. temperature at v (en ) = v in = 5 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 figure 32. t on vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 figure 33. t rec vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6 figure 34. package mechanical drawing for tdfn 8-lead (2 x 2 x 0.75 mm) . . . . . . . . . . . . . . . . . . . 32 figure 35. tape and reel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 figure 36. reel dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 figure 37. tape trailer/leader. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 figure 38. pin 1 orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
description stbp110 6/40 doc id 018687 rev 3 1 description the stbp110 device provides overvoltage protection for input voltage up to +28 v. its low r ds(on) n-channel mosfet switch protects the systems connected to the out pin against failures of the dc power supplies in accordance with the china mii communications standard yd/t 1591-2006. in the event of an input overvoltage condition, the device immediately disconnects the dc power supply by turning off an internal low r ds(on) n-channel mosfet to prevent damage to protected components. in addition, the device also monitors its own junction temperature and switches off the internal mosfet if the junction temperature exceeds the specified limit. the device can be controlled by the microcontroller and can also provide status information about fault conditions. the stbp110 is offered in a small, rohs-compliant 8-lead tdfn (2 mm x 2 mm) package. figure 1. logic diagram figure 2. pinout 1. exposed thermal pad may be tied to gnd. !- ). /54 &,4 %. '.$ 34"0 !- ). /54 .# .# &,4 %. '.$ .#        
stbp110 pin description doc id 018687 rev 3 7/40 2 pin description 2.1 input (in) input voltage (in) pin. the in pin is connected to the dc power supply. an external low esr ceramic capacitor of minimum value 1 f must be connected between in and gnd. this capacitor is needed for decoupling and also protects the ic against fast voltage spikes and esd events. this capacitor should be located as close to the in pin as possible. 2.2 output (out) output voltage (out) pin. the out pin is connected to the input through a low r ds(on) n-channel mosfet switch. if no fault is detected and the stbp110 is enabled by the en input, this switch is turned on and the output voltage follows the input voltage. the output is disconnected from the input when the input voltage is under the uvlo threshold or above the ovlo threshold, when the junction temperature is above the thermal shutdown threshold or when the device is disabled by the en input. after the input voltage or junction temperature returns to the specified range, there is a recovery delay, t rec , and the power output is then connected to the input (see figure 8 ). the switch turn-on time is intentionally prolonged to limit the inrush current and voltage drop caused, for example, by charging output capacitors (soft-start feature). 2.3 fault indication output (flt ) the active low, open-drain fault indication output provides information on the stbp110 state to the application controller. the flt is asserted (i.e. driven low), if the stbp110 is in the overvoltage condition or thermal shutdown mode is active. as the flt output is of the open-drain type, it may be pulled up by an external resistor r pu to the controller supply voltage (see figure 4 ). if there is no need to use this output, it may be left disconnected. the suitable r pu resistor value is in the range of 10 k to 1 m . to improve safety and to prevent damage to application circuits in the event of extreme voltage or current conditions, an optional protective resistor r flt can be connected between the flt output and the controller input (see figure 4 ). the suitable r flt resistor value is in the range of 10 k to 100 k . the flt output is in hi-z (high impedance) state when the device is disabled by en input or when the input voltage is lower than the uvlo threshold. 2.4 enable input (en ) this active low logical input can be used to enable or disable the device. when the en input is driven high, the stbp110 is in shutdown mode and the power output is disconnected from the input (see figure 8 ). when the en input is driven low and all operating conditions are within specified limits, the power output is connected to the input.
pin description stbp110 8/40 doc id 018687 rev 3 the en input is equipped with an internal pull-down resistor of 250 k (typical value). if there is no need to use this input, it may be left floating or, preferably, connected to gnd. for v in lower than 2.5 v (max.), the pull-down resistor is internally disconnected to lower the en pin input current in case the external ac adapter is not connected, the application is running from an internal battery and the stbp110 device is disabled. to improve safety and to prevent damage to application circuits in the event of extreme voltage or current conditions, an optional protective resistor r en can be connected between the en input and the controller output (see figure 4 ). the protective resistor forms a voltage divider with the internal pull-down resistor, which limits the maximum possible r en value with respect to the v ih(en ) threshold of en input and the controller?s output voltage for logic high, v oh . for the worst case, the highest protective resistor value is r enmax = r pd(en )min x (v oh / v ih(en ) - 1), where r pd(en )min is 100 k and v ih(en ) is 1.2 v. for most cases, an r en value of 10 k to 100 k is adequate. the flt output is in hi-z state when the device is disabled by en input. 2.5 no connect (nc) pin 3, 6, and 7 are no connect (nc). they may be left floating or connected to gnd. 2.6 ground (gnd) ground terminal. all voltages are referenced to gnd. the exposed thermal pad is internally connected to gnd. table 1. pin description and signal names pin name type function 1 in input/supply input voltage 2 gnd supply ground 3, 6, 7 nc - not connected 4flt output fault indication output (open-drain) 5en input enable input (pull-down resistor to gnd) 8 out output output voltage
stbp110 pin description doc id 018687 rev 3 9/40 figure 3. block diagram figure 4. typical application circuit 1. optional resistors r en and r flt prevent damage to the controller under extreme voltage or current conditions and are not required. low esr ceramic capacitor c1 is necessary to ensure proper function of the stbp110. capacitor c2 is not necessary for stbp110 but may be required by the charger ic. 2. the stbp110 mosfet switch topology allows the current to flow also in a reverse direction, i.e. from out to in, which can be useful for powering external peripherals from the system connector. if the reverse current (supply current) is undesirable, it may be prevented by connecting an external schottky diode in series with the out pin. the voltage drop between in and the charger is then increased by the voltage drop across the diode. '.$ &,4 %. ). /54 #/5.4%23 /&& 6 2%& 6 ## !-6 #/.42/,,/')# 3500,9 2%'5,!4/2 /3#),,!4/2 #(!2'%05-0 !.$-/3&%4$2)6%2 7)4(3/&434!24 6/,4!'% 2%&%2%.#% )nputovervoltage )nputundervoltage 4hermalshutdown 4emperature detector -#5 ).4%2&!#% %3$ protection %3$ protection %3$ protection #ore negative protection 2 0$%. !- !# adapter 0/7%2%$ 0%2)0(%2!,3 3934%- #/..%#4/2 3500,9#522%.4 #(!2').'#522%.4 #  ?& ). /54 &,4 %. '.$ %. %.!",% #  ?& 2 &,4 2 %. 2 05 #(!2'%2 )# 3500,9 #)2#5)43 #/.42/,,%2 "!44%29 0!# + 34"0 !00,)#!4)/. $# $# /2 0%2)0(%2!,
operation stbp110 10/40 doc id 018687 rev 3 3 operation the stbp110 provides overvoltage protection for positive input voltage up to 28 v using a built-in low r ds(on) n-channel mosfet switch. 3.1 power-up at power-up, with en = low, the mosfet switch is turned on after the startup delay, t on , after the input voltage exceeds the uvlo threshold to ensure the input voltage is stabilized (see figure 5 ). 3.2 normal operation the device continuously monitors the input voltage and its own internal temperature so the output voltage is kept within the specified range. the internal mosfet switch is turned on and the flt output is deasserted. the stbp110 enters normal operation state if the input voltage returns to the interval between v uvlo and v ovlo - v hys(ovlo) and the junction temperature falls below t off - t hys(off) . the internal mosfet is turned on after the t rec delay to ensure that the conditions have stabilized and the flt output is deasserted. note: the stbp110 mosfet switch topology allows the current to flow also in a reverse direction, i.e. from out to in, which can be useful for powering external peripherals from the system connector (see the supply current in figure 4 ). at first, the current flows through the mosfet body diode. if the voltage that appears on the in terminal is above the uvlo threshold, the mosfet is (after the startup delay) turned on so the voltage drop across stbp110 is significantly reduced. if the reverse current is undesirable, it may be prevented by connecting an external, properly rated low drop schottky diode in series with the out pin. the voltage drop between in and charger is increased by the voltage drop across the diode. 3.3 undervoltage lockout (uvlo) to ensure proper operation under any condition, the stbp110 has an undervoltage lockout (uvlo) threshold. when the input voltage is rising, the output remains disconnected from input until the v in voltage exceeds the v uvlo threshold. this circuit is equipped with hysteresis, v hys(uvlo) , to improve noise immunity under transient conditions. 3.4 overvoltage lockout (ovlo) if the input voltage v in rises above the threshold level v ovlo , the mosfet switch is immediately turned off. at the same time, the fault indication output flt is activated (i.e. driven low), see figure 6 . this device is equipped with hysteresis, v hys(ovlo) , to improve noise immunity under transient conditions.
stbp110 operation doc id 018687 rev 3 11/40 3.5 thermal shutdown if the stbp110 internal junction temperature exceeds the t off threshold, the internal mosfet switch is turned off and the fault indication output flt is driven low. to improve thermal robustness, this circuit has a 20 c hysteresis, t hys(off) . due to the internal reverse diode, the thermal shutdown is not functional for the reverse current.
timing diagrams stbp110 12/40 doc id 018687 rev 3 4 timing diagrams figure 5. power-up 1. en input is low. figure 6. overvoltage protection 1. en input is low. figure 7. disable (en = high) 1. flt output is in hi-z state when en driven high. !-6 /6,/ 56,/ 6 ). 6 /54 6 &,4 t on 6 !-6 /6,/ 56,/ 6 ). 6 /54 6 &,4 t off 6 !-6 t dis /6,/ 56,/ 6 ). 6 %. 6 6
stbp110 timing diagrams doc id 018687 rev 3 13/40 figure 8. recovery from ovp 1. en input is low. /6,/ 6 ). 6 &,4 6 /54 6 t rec !-
typical operating characteristics stbp110 14/40 doc id 018687 rev 3 5 typical operating characteristics figure 9. maximum mosfet current at t a = 85 c for various pcb thermal performance and t j 125 c typical operating characteristics (stbp110gt) figure 10. startup, t on 1. output load is 100 k . 2 th*! ;?#7= ) -/3&%4 ;!= !-6              
stbp110 typical operating characteristics doc id 018687 rev 3 15/40 figure 11. overvoltage, t off 1. output load is 5 . figure 12. recovery from overvoltage, t rec 1. output load is 5 .
typical operating characteristics stbp110 16/40 doc id 018687 rev 3 figure 13. disable, t dis 1. output load is 5 . figure 14. startup to overvoltage 1. output load is 5 .
stbp110 typical operating characteristics doc id 018687 rev 3 17/40 figure 15. startup to overvoltage (detail) 1. output load is 5 . almost no glitch on the output. figure 16. soft-start performance for 10 f capacitive load 1. output load is 10 f in parallel with 5 .
typical operating characteristics stbp110 18/40 doc id 018687 rev 3 figure 17. soft-start performance for 100 f capacitive load 1. output load is 100 f in parallel with 5 . figure 18. i cc vs. temperature at v in = 5 v           4emp ;?#= ) ## !-
stbp110 typical operating characteristics doc id 018687 rev 3 19/40 figure 19. i cc vs. v in figure 20. i cc vs. v in (detail)               6 ). ;6= ) ## 4 !   ?# 4 ! ?# 4 !  ?# !-       6 ). ;6= ) ## 4 !  ?# 4 ! ?# 4 ! ?# !-
typical operating characteristics stbp110 20/40 doc id 018687 rev 3 figure 21. i cc(stdby) vs. temperature at v in = 5 v figure 22. i cc(stdby) vs. v in !-          4emp ;?#= ) ##34$"9 !-               6 ). ;6= ) ##34$"9 4 !  ?# 4 ! ?# 4 ! ?#
stbp110 typical operating characteristics doc id 018687 rev 3 21/40 figure 23. i cc(stdby) vs. v in (detail) figure 24. v ovlo vs. temperature      6 ). ;6= ) ##34$"9 4 !  ?# 4 ! ?# 4 ! ?# !-          4emp;?#= 6 /6, / ;6= !-
typical operating characteristics stbp110 22/40 doc id 018687 rev 3 figure 25. v uvlo vs. temperature figure 26. v ol(flt ) vs. temperature at i sink(flt ) = 5 ma, v in = 5 v !-          4emp;?#= 6 56,/ ;6= !-           4emp ;?#= 6 /,&,4 ;m6=
stbp110 typical operating characteristics doc id 018687 rev 3 23/40 figure 27. r ds(on) vs. temperature at 5 v, 1 a figure 28. v il(en ) vs. temperature !-           4emp ;?#= 2 $3on = !-              4emp;?#= 6 ),%. ;6=
typical operating characteristics stbp110 24/40 doc id 018687 rev 3 figure 29. v ih(en ) vs. temperature figure 30. i (en ) vs. v in at v (en ) = 5 v !-              4emp;?#= 6 )(%. ;6= !-             6 ). ;6= ) %. 4 !  ?# 4 ! ?# 4 ! ?#
stbp110 typical operating characteristics doc id 018687 rev 3 25/40 figure 31. r pd(en ) vs. temperature at v (en ) = v in = 5 v figure 32. t on vs. temperature !-             4emp;?#= 2 0$%. !-          4emp;?#= t on ;ms=
typical operating characteristics stbp110 26/40 doc id 018687 rev 3 figure 33. t rec vs. temperature !-          4emp;?#= t rec ;ms=
stbp110 maximum rating doc id 018687 rev 3 27/40 6 maximum rating stressing the device above the rating listed in ta b l e 2 may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in section 3 of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. refer also to the stmicroelectronics? sure program and other relevant documentation. table 2. absolute maximum ratings symbol parameter value unit t stg storage temperature (v in off) -55 to 150 c t sld (1) 1. reflow at peak temperature of 260 c. the time above 255 c must not exceed 30 seconds. lead solder temperature for 10 seconds 260 c t j operating junction temperature range (internally limited to t off ) -40 to 150 c v in in pin input voltage -0.3 to 30 v v out out pin input/output voltage -0.3 to 12 v v io input/output voltage (other pins) -0.3 to 7 v i load load current (in to out) 1200 ma i reverse reverse diode current (out to in) 500 ma i sink(flt ) flt pin sink current 15 ma v esd esd withstand voltage (iec 61000-4-2, in pin only) (2) 2. system-level value (see typical application circuit, c1 1 f low esr ceramic capacitor). 15 (air), 8 (contact) kv human body model (hbm), model = 2 (3) 3. human body model, 100 pf discharged through a 1.5 k resistor according to the jesd22/a114 specification. 2000 v machine model (mm), model = b (4) 4. machine model, 200 pf discharged through all pins according to the jesd22/a115 specification. 200 v table 3. thermal data symbol parameter value unit r thja thermal resistance (junction-to-ambient) 59 (1) 1. the package was mounted on a 4-layer jedec test board with 2 thermal vias connecting from the thermal land to the first buried plane. the 4-layer pcb (2s2p) was constructed based on jesd 51-7 specifications and vias based on jesd 51-5. c/w r thjc thermal resistance (junction-to-case) 5.9 c/w
dc and ac parameters stbp110 28/40 doc id 018687 rev 3 7 dc and ac parameters this section summarizes the operating measurement conditions, and the dc and ac characteristics of the device. the parameters in table 5 are derived from tests performed under the measurement conditions summarized in table 4 . designers should check that the operating conditions in their circuit match the operating conditions when relying on the quoted parameters. table 4. operating and ac measurement conditions parameter value unit input voltage (v in )5v ambient operating temperature (t a ) -40 to 85 c junction operating temperature (t j ) -40 to 125 c logical input rise and fall times 5 ns table 5. dc and ac characteristics symbol description test condition (1) min. typ. max. unit v in input voltage range v uvlo 28 v v uvlo input undervoltage lockout threshold (v in rising) option t option u option v 2.5 2.8 3.1 2.7 3.0 3.25 2.9 3.2 3.4 v v hys(uvlo) undervoltage lockout hysteresis (2) 100 mv v ovlo overvoltage lockout threshold v in raises ovlo threshold, option a 5.25 5.375 5.50 v v in raises ovlo threshold, option b 5.30 5.50 5.70 v in raises ovlo threshold, option c 5.71 5.90 6.10 v in raises ovlo threshold, option d 5.70 6.02 6.40 v in raises ovlo threshold, option e 6.20 6.40 6.60 v in raises ovlo threshold, option f 6.60 6.80 7.00 v in raises ovlo threshold, option g 7.00 7.20 7.40 v hys(ovlo) input overvoltage hysteresis 30 60 90 mv r ds(on) in to out resistance v (en ) = 0 v, v in = 5 v, i load = 0.5 a 170 280 m i cc operating current v (en ) = 0 v, i load = 0 a 140 210 a i cc(stdby) standby current v (en ) = 5 v, i load = 0 a 80 120 v ol(flt ) flt output low level voltage v in > v ovlo , i sink(flt ) = 5 ma 350 800 mv i l(flt ) flt output leakage current v flt = 5 v 0.1 2 a v il(en ) en low level input voltage 0.4 v
stbp110 dc and ac parameters doc id 018687 rev 3 29/40 v ih(en ) en high level input voltage 1.2 v r pd(en ) en internal pull-down resistor (3) v in > 2.5 v, v (en ) = 5 v 100 250 400 k timing parameters t on startup delay (4) time measured from v in > v uvlo to v out = 0.3 v (no load on the output). 8ms t off (5) output turn-off time time measured from v in > v ovlo to v out 0.3 v. v in increasing from 5.0 v to 8.0 v at 3.0 v/s, r load = 5 , c load = 0. 1 s t dis (5) disable time time measured from v (en ) 1.2 v to v out < 0.3 v, r load = 5 , c load = 0. 15 t rec recovery delay from uvlo, ovlo, or thermal shutdown (4) time measured to v out = 0.3 v (no load on the output) 8ms thermal shutdown t off thermal shutdown threshold temperature 140 150 c t hys(off) thermal shutdown hysteresis 20 c 1. test conditions described in table 4 (except where noted). 2. hysteresis of 60 mv typ. available upon request. 3. version without pull-down resistor or with permanently connected pull-down resistor available upon request. 4. delays of 16, 32, and 64 ms available upon request. 5. guaranteed by design. not tested in production. table 5. dc and ac characteristics (continued) symbol description test condition (1) min. typ. max. unit
application information stbp110 30/40 doc id 018687 rev 3 8 application information 8.1 calculating the power dissipation the worst case power dissipation of the stbp110 internal power mosfet can be calculated using the following formula: equation 1 p d = i load 2 x r ds(on)(max) , where i load is the load current and r ds(on)(max) is the maximum value of mosfet resistance. example 1 v in = 5 v, r load = 5 , r ds(on)(max) = 280 m i load = v in / (r ds(on)(max) + r load ) = 5 / (5 + 0.280) = 0.95 a p d = 0.95 2 x 0.28 = 0.25 w the power dissipation of the reverse diode in powering accessories mode can be estimated as p d = (v out - v in ) x i reverse 0.7 x i reverse . 8.2 calculating the junction temperature the maximum junction temperature for given power dissipation, ambient temperature, and thermal resistance junction-to-ambient can be calculated as: equation 2 t j = t a + 1.15 x p d x r thja = t a + 1.15 x i load 2 x r ds(on)(max ) x r thja , where t j is junction temperature, t a is given ambient temperature, 1.15 is a derating factor, and r thja is a junction-to-ambient thermal resistance, depending on pcb design. the junction temperature may not exceed 125 c (see ta b l e 4 ) to stay within the specified range. maximum allowed mosfet current for ambient temperature t a = 85 c and various r thja values are listed in figure 9 . example 2 for conditions listed in the previous example, with a well designed pcb (ensuring r thja = 59 c/w) and t a = 85 c, the maximum junction temperature is: equation 3 t j = 85 + 1.15 x 0.25 x 59 = 102 c, which is a safe value (below 125 c).
stbp110 application information doc id 018687 rev 3 31/40 8.3 pcb layout recommendations input capacitor c1 should be located as close as possible to the stbp110 device. it should be a low-esr ceramic capacitor. also the protective resistors r flt and r en (if used) should be located close to the stbp110 (see figure 4 ). for good thermal performance, it is preferred to couple the stbp110 exposed thermal pads with the pcb ground plane. in most designs, this requires thermal vias between the copper pads on the pcb and the ground plane.
package mechanical data stbp110 32/40 doc id 018687 rev 3 9 package mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack specifications, grade definitions and product status are available at: www.st.com . ecopack is an st trademark. figure 34. package mechanical drawing for tdfn 8-lead (2 x 2 x 0.75 mm)   $ % , x  e   radiu s 0 in)$ # ! ! 3)$% 6)% 7 0, !.% !   # ddd # 3% !4). ' $ 0) . ).$%8 !2%! %   #   # 4/ 06)%7 x x " ! b  x  "/ 44/- 6 )%7   # ! "   # 4$&.
stbp110 package mechanical data doc id 018687 rev 3 33/40 table 6. package mechanical dimensions for tdfn 8-lead (2 x 2 x 0.75 mm) (1) 1. controlling dimension: millimeters. symbol dimensions mm inches typ. min. max. typ. min. max. a 0.75 0.70 0.80 0.030 0.028 0.031 a1 0.02 0.00 0.05 0.001 0.000 0.002 a3 ref 0.20 ? ? 0.008 ? ? b 0.25 0.20 0.30 0.010 0.008 0.012 d bsc 2.00 ? ? 0.079 ? ? d2 1.60 1.45 1.70 0.063 0.057 1.067 e bsc 2.00 ? ? 0.079 ? ? e2 0.90 0.75 1.00 0.035 0.030 0.039 e 0.50 ? ? 0.020 ? ? l 0.30 0.25 0.35 0.012 0.010 0.014 ddd (2) 2. lead coplanarity should not exceed 0.08 mm. ? ? 0.08 ? ? 0.003 n (3) 3. n is the total number of terminals. 88
tape and reel information stbp110 34/40 doc id 018687 rev 3 10 tape and reel information figure 35. tape and reel 4 +  0  !  "  0  0  #enter lines of cavity 7 % & $ 4opcover tape 5serdirectionoffeed !-v table 7. carrier tape dimensions tape size w d e p0 p2 f 8 8.00 +0.30 / -0.10 1.50 +0.10 / -0.0 1.75 0.1 4.00 0.10 2.00 0.10 3.50 0.05 table 8. further tape and reel information package codewa0b0k0p1 t bulk qty. reel diameter 2 x 2 mm tdfn 8-lead 8 2.30 0.05 2.30 0.05 1.00 0.05 4.00 0.10 0.250 0.05 3000 7
stbp110 tape and reel information doc id 018687 rev 3 35/40 figure 36. reel dimensions figure 37. tape trailer/leader ! $ " &ullradius 4apeslot in corefor tapestart mmminwidth 'measured athub # . mmmin access hole at slotlocation 4 !- table 9. reel dimensions tape size a max. b min. c d min. n min. g t max. 8 mm 180 (7 inch) 1.5 13 0.2 20.2 60 8.4 +2 / -0 14.4 ,%!$%2 .ocomponents #omponents .ocomponents 42!),%2 mmmin 3tart mm min mmmin %nd 3ealedwithcovertape 5serdirectionoffeed 4op co ver tape !-
tape and reel information stbp110 36/40 doc id 018687 rev 3 figure 38. pin 1 orientation 1. drawings are not to scale. 2. all dimensions are in mm, unless otherwise noted. 5serdirectionoffeed !-
stbp110 part numbering doc id 018687 rev 3 37/40 11 part numbering note: currently available part numbers are marked bold in ta b l e 1 1 . for other options, or for more information on any aspect of this device, please contact the nearest st sales office. table 10. ordering information scheme stbp110 a t dj 6 f device type stbp110 overvoltage threshold a = 5.375 v b = 5.50 v c = 5.90 v d = 6.02 v e = 6.40 v f = 6.80 v g = 7.20 v undervoltage threshold t = 2.70 v u = 3.00 v v = 3.25 v package dj = tdfn8 2 x 2 x 0.75 mm temperature range 6 = -40 c to +85 c shipping method f = ecopack ? package, tape and reel
package marking information stbp110 38/40 doc id 018687 rev 3 12 package marking information note: currently available part numbers are marked bold in ta b l e 1 1 . for other options, or for more information on any aspect of this device, please contact the nearest st sales office. table 11. marking description part number overvoltage threshold (v) undervoltage threshold (v) topside marking stbp110atxxxx 5.375 2.70 11a stbp110btxxxx 5.50 2.70 11b stbp110ctxxxx 5.90 2.70 11c stbp110dtxxxx 6.02 2.70 11d stbp110etxxxx 6.40 2.70 11e stbp110ftxxxx 6.80 2.70 11f stbp110gtxxxx 7.20 2.70 11h stbp110auxxxx 5.375 3.00 11k stbp110buxxxx 5.50 3.00 11l stbp110cuxxxx 5.90 3.00 11m stbp110duxxxx 6.02 3.00 11n stbp110euxxxx 6.40 3.00 11p stbp110fuxxxx 6.80 3.00 11q stbp110guxxxx 7.20 3.00 11r stbp110avxxxx 5.375 3.25 11t stbp110bvxxxx 5.50 3.25 11u stbp110cvxxxx 5.90 3.25 11v stbp110dvxxxx 6.02 3.25 11w stbp110evxxxx 6.40 3.25 11x stbp110fvxxxx 6.80 3.25 11y stbp110gvxxxx 7.20 3.25 11z
stbp110 revision history doc id 018687 rev 3 39/40 13 revision history table 12. document revision history date revision changes 27-apr-2011 1 initial release. 04-may-2011 2 updated figure 38 . 07-jun-2012 3 removed ?preliminary data?, updated section 2.2 , section 2.4 , section 3.2 , section 3.5 , section 8.2 , figure 3 , figure 9 , figure 38 , ta b l e 5 , ta b l e 1 0 , ta ble 1 1 and disclaimer, added section : typical operating characteristics (stbp110gt) , minor text corrections throughout document.
stbp110 40/40 doc id 018687 rev 3 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at an y time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a particular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by two authorized st representatives, st products are not recommended, authorized or warranted for use in military, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2012 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com


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