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ICE1HS01G half-bridge resonant controller never stop thinking. power management & supply datasheet, version 2.0, 24 august 2009
edition 24 august 2009 published by infineon technologies ag 81726 munich, germany ? 2007 infineon technologies ag all rights reserved. legal disclaimer the information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. with respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, infineon technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. information for further information on technology, delivery terms and conditions and prices, please contact the nearest infineon technologies office ( www.infineon.com ). warnings due to technical requirements, components may contain dangerous substances. for information on the types in question, please contact the nearest infineon technologies office. infineon technologies components may be used in life-support devices or systems only with the express written approval of infineon technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. if they fail, it is reasonable to assume that the health of the user or other p ersons ma y be endan g ered. for questions on technology, delivery and prices please contact the infineon technologies offices in germany or the infineon technologies companies and representat ives worldwide: see our webpage at http:// www.infineon.com coolmos?, coolset? are trademarks of infineon technologies ag. ICE1HS01G revision history: 24 august 2009 target datasheet previous version: page subjects (major changes since last revision)
type package ICE1HS01G pg-dso-8 version 2.0 3 24 august 2009 ICE1HS01G half-bridge resonant controller pg-dso-8 ICE1HS01G product highlights ? minimum number of external components ? high accuracy oscillator ? two-level over current protection ? over load/open loop protection ? mains undervoltage prot ection with adjustable hysteresis ? adjustable blanking time for over load protection and restart features ? dso8 package ? maximum 600khz switching frequency ? adjustable minimum switching frequency with high accuracy ? 50% duty cycle ? mains input under votlage protection with adjustable hysteresis ? two levels of overcurrent protection: frequency shift and latch off ? open-loop/over load protection with extended blanking time ? built-in digital and nonlinear softstart ? adjustable restart time during fault protection period applications ? lcd/pdp tv ? ac-dc adapter ? audio smps typical application circuit c bus tl431 r b1 r b2 r c1 c c2 r os2 r os1 d o1 d o2 c o c f l f v o v indc w p w sh w sl fmin cs fb vins gnd lg hg vcc ice1hs01/g auxiliary supply driver module c c1 r cs2 r cs1 d cs1 d cs2 c cs1 c cs2 c s q 1 q 2 r fmin r ins1 r ins2 c ins opto c fb
half-bridge resonant controller ICE1HS01G table of contents page version 2.0 4 24 august 2009 1 pin configuration and functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.1 pin configuration with pg-dso-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.2 pin functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2 representative block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 3 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 3.1 oscillator and pulse frequency modulation . . . . . . . . . . . . . . . . . . . . . . . . .7 3.2 ic power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 3.3 soft start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 3.4 current sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 3.5 over current protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 3.6 mains input voltage sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 3.7 over load protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 4.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 4.2 operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 4.3 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 4.3.1 supply section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 4.3.2 oscillator section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 4.3.3 input voltage sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 4.3.4 current sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 4.3.5 soft start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 4.3.6 feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.3.7 over load protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 4.3.8 gate driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 5 outline dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
version 2.0 5 24 august 2009 half-bridge resonant controller ICE1HS01G pin configuration and functionality 1 pin configuration and functionality 1.1 pin configuration with pg-dso-8 figure 1 pin configuration with pg-dso-8 1.2 pin functionality fmin (minimum switching frequency) an external resistor is connected between this pin and the ground. the voltage of this pin is constant during operation and thus the resistance determines the current flowing out of this pin. the minimum switching frequency is determined by this current. the maximum switching frequency and the switching frequency during soft start are also related to the current flowing out of fmin pin. cs (current sense) the current sense signal is fed to this pin. inside the ic, two comparators are provided. if the voltage on cs pin is higher than the first threshold, ic will increase the switching frequency to limit the maximum output power of the converter. if the vo ltage on this pin exceeds the second threshold, ic will be latched off immediately. fb (feedback) this pin is connected to the collector of the opto- coupler. internally, during normal operation, this pin is connected to reference voltage source with a pull-up resistor(r fb ). the ic uses the voltage on this pin to adjust the switching frequency within the range of maximum and minimum frequency set by fmin pin. if fb voltage is higher than v fbh for a certain fixed blanking time, an extended timer will be started. if over load/open loop protection exists longer than the extended blanking time, ic will enter auto-restart mode. an off timer starts from the instant ic stops switching till ic starts another soft start. this off time is determined by the resistors and capacitor connected to vins pin. vins (mains input voltage sense) the mains input voltage is fed to this pin via a resistive voltage divider. if the voltage on vins pin is higher than the threshold v inson , ic will start to operate with softstart when vcc increases beyond turn on threshold. during operation, if the voltage on this pin falls below the threshold v inson , ic will stop switching until the voltage on this pin increases again. when ic goes into over load protection mode, ic will stop switching and try to restart after a period of time. this period can be adjusted by connectting different capacitors between this pin and ground. gnd (ground) ic common ground. lg (low side gate drive) low side power mosfet driver. hg (high-side gate drive) up side power mosfet driver. vcc (ic power supply) supply voltage of the ic. pin symbol function 1 fmin minimum switching frequency 2 cs current sense 3 fb feedback voltage 4 vins input voltage sense 5 gnd ic ground 6 lg low side gate drive 7 hg high side gate drive 8 vcc ic power supply 1 2 fmin 3 4 cs fb vins 8 7 6 5gnd vcc hg lg
half-bridge resonant controller ICE1HS01G representative block diagram version 2.0 6 24 august 2009 2 representative block diagram figure 2 representative block diagram hg lg vcc fmin gnd fb cs q fb 200ns ena t olp 20ms i i ref 200ns c fb4 ena v fb_bh c fb1 v fb_olp v fb_l c fb5 ena v fb_bl c fb2 ena v fb_ch c fb3 ena v fb_cl c v2 ena v vi_h i vi_hys c v3 ena v vi_l v ref i vi_chg c v1 ena v vins 500 s 50 s t vi_r gate driver uvlo 12v 11v voltage reference gate driver c o1 v ch c o2 v cl i dt c fs clk q q d v ref r fb vins & g fb1 & g fb2 & g v3 & g v2 current limitation 5.0*i chg_min v ref & g v1 & g lg & g hg clk status ena & g v4 5v 1 g ar & g l v cs_la c cs1 c cs2 c cs3 v cs_h v cs_l t cs_la v ref i csc c cs i csd & g o1 & g o2 c cs5 ena v cs_cl c cs5 ena v cs_ch soft start enable ss end i ref i ss clk olp up reset clk up/down i ocp i ref 1 g cs2 c f1 v fmin q f1 v ref r s f fb2 q s r f fb1 q r s f fb3 q s r f fb4 q s r f vi_2 q q s r f latch q r s f o1 q r s f o2 q r s f o3 q s r f cs_1 q q r s f vi_1 q q t olp_r & g v5 over current protection (patent pending)
version 2.0 7 24 august 2009 half-bridge resonant controller ICE1HS01G functional description 3 functional description the controller ICE1HS01G with two gate outputs is specially designed for llc resonant half-bridge converters. an oscillator with accurately-programmed frequency range is built inside the ic. the two gate signals are obtained by passing the signal out from the oscillator through a divide-by-two flip-flop. therefore, two signals are of exactly 50% duty cycle and 180 o out of phase. to guarantee the zero-voltage-switching and safe operation in half-bridge topologies, a fixed dead time of 380ns is inserted in each internal when one switch is turned off and the other is turned on. for llc resonant half-bridge converter, the output voltage is regulated by changing the switching frequency. ICE1HS01G offers the designer to choose suitable operation frequency range by programming the oscillator with one single resistor. in addition, ICE1HS01G offers a programmed soft-start function to limit both the inrush current and the overshoot in output voltage. to protect the system dur ing operation, mains input under-voltage protection and over-current protection are integrated in ICE1HS01G as well. 3.1 oscillator and pulse frequency modulation the oscillator is programmed with only one external resistor r fmin connected to fmin pin. the trimmed capacitor c fs is built inside the ic with high accuracy. the simplified oscillator circuit is shown in figure 3. figure 3 simiplified oscillator circuit the charge current i chg is sum of four currents which are i chg_min , i fb , i cs and i ss . [1] everytime the capacitor c fs is charged by i chg to v ch , the upper switch is turned off and c fs will be discharged through i disc . the charge time determines the on time for gate signal. the discharge time determines the dead time during transition from one gate off to another gate on. the switching waveforms of the oscillator and gate signals are shown in figure 4. figure 4 oscillator waveforms according to figures 3 and 4, the on time of each gate can be obtained as [2] the switching frequency can be obtained as [3] where the dead time t d is fixed as 380ns. 3.1.1 minimum charge current the voltage on pin fmin is a constant of 1.5v during normal operation. the resistor r fmin determines the current(i fmin ) flowing out from fmin pin. around one- tenth of i fmin is defined as the minimum charging current(i chg_min ), which in turn defines the minimum switching frequency as follows. c o2 c o1 v ch v cl r s q r s q fmin c f1 vdd q f1 i chg_min c fs i disc 1.5v r fmin q f2 q f3 i chg i fb i cs i ss fb cs ICE1HS01G i chg i chgmin i fb i cs i ss +++ = v cf v delay v lg v hg 4v 1v 5v 10v 10v 0v 0v 0v t t t t t d t on 3c fs i chg ----------- - = f s 1 2 3c fs i chg ----------- -t d + ?? ?? --------------------------------- =
version 2.0 8 24 august 2009 half-bridge resonant controller ICE1HS01G functional description figure 5 fmin versus r fmin 3.1.2 feedback regulation the output information is fed into the controller through feedback voltage. if the output power is higher, the feedback voltage will be higher, which will cause the switching frequency to decrease and vice versa. the regulation of switching frequency is achieved by changing the charging current. an accurate operational transconductance amplifier (ota) is used to translate the feedback voltage v fb into current i fb . the effective range of feedback voltage is from 0.9v to 3.9v. figure 6 graphs the relationship between the actual switching frequency and feedback voltage v fb when r fmin =22kohm. figure 6 switching frequency versus v fb burst mode operation is also provided by ICE1HS01G. during llc operation, the feedback signal v fb is continuously monitored. when v fb drops below v fb_off , the switching signal will be disabled after a fixed blanking time t fb . v fb will then rise as v out starts to decrease due to no switching signal. once v fb exceeds the threshold v fb_on , the ic resumes to normal operation. 3.1.3 current sense current i cs in llc resonant topologies, it is necessary to limit the resonant current in case of short circuit or other fault conditions. it is achieved by adding another current ics to the charging current i chg . i cs is limited to 3 times of the minimum charge current. 3.1.4 soft start current i ss to limit the inrush current and output overshoot during start up, the switching frequency shall be necessary high at start up. the switching frequency will change gradually toward the minimum switching frequency until the feedback voltage comes into regulation. the switching frequency will then go to desired value according to load and input conditions. the soft start current i ss also has a upper limit of around 3.4 times of minimum charge current. details of soft start will be shown later. 3.1.5 charge current i chg the charge current i chg for ic oscillator capacitor c fs is the sum of the four parts including i chg_min , i fb , i ss and i cs . to limit the maximum switching frequency, maximum value of i chg is 5 times of i chg_min . in summary, the maximum charge current during normal operation is 3i chg_min while the maximum charge current during fault condition or softstart is around 4i chg_min and 4.43*i chg_min respectively. figure 7 shows the maximum switching frequency versus minimum switching frequency during normal operation. figure 7 fmax versus fmin during normal operation 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 0 5 10 15 20 25 30 35 40 45 50 55 60 6 5 r fmin [kohm] mini m u m s wit c hing f re q uen c y [kh z ] 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 00.511.522.533.544.5 feedback voltage vfb [v] frequency [khz] 0 50 100 150 200 250 300 350 400 450 0 25 50 75 100 125 150 175 200 fmin [khz] fmax [khz]
version 2.0 9 24 august 2009 half-bridge resonant controller ICE1HS01G functional description figure 8 shows the maximum switching frequency versus minimum switching frequency during softstart. figure 8 fmax_ss versus fmin during soft start 3.2 ic power supply the controller ICE1HS01G is targetting at applications with auxiliary power supply. in most cases, a front-end pfc pre-regulator with a pfc controller is used in the same system. the controller ICE1HS01G starts to operate when the supply voltage v vcc reaches the on-threshold, v vccon of 12v. the minimum operating voltage after turn-on, v vccoff , is at 11v. the maximum recommended operating voltage v vccmax is 18v. 3.3 soft start at the beginning of the startup phase, the ic provides a soft start with duration of 32ms with 32 steps. during this period, the switching frequency is controlled internally by changing the current i ss . figure 9 illustrates the actual switching frequency vs startup time when r fmin =22kohm. during softstart, the frequency starts from 250khz, and step by step drops to normal operation point. figure 9 switching frequency during softstart when r fmin =22kohm during soft start, the overload protection is disabled although fb voltage is high. 3.4 current sense current sense in llc half bridge converters is for protection purpose. the voltage of resonant capacitor c s is the sum of the resonant voltage and the dc voltage which is equal to half of the input bus voltage. if resonant current is higher, then the voltage on c s is higher.the current informations for both primary side and secondary side are almost the same and can be obtained by dividing and filtering the resonant voltage. the circuit is shown in figure 10. figure 10 current sense circuit 3.5 over current protection the controller ICE1HS01G incorporates two-level over current protection. in case of over-load condition, the lower level ocp will be triggerred, the switching frequency will be increased according to the duration and power of the over load. the higher level ocp is used to protect the converter if transformer winding is shorted, the ic will be latched immediately. if v cs is higher than 0.8v, ic will boost up the switching frequency. if vcs is lower than 0.75v, ic will resume to normal operation gradually. if v cs is always higher than 0.8v for 1.5ms, the frequency will rise to its maximum level. and vice versa. to sum up, ICE1HS01G will increase the switching frequency to limit the resonant current in case of temporary over-load and will also decrease the switching frequency to its normal value after over-load condition goes away. 3.6 mains input voltage sense the working range of mains input voltage needs to be specified for llc resonant converter. it is important for the controller to have input voltage sensing function and protection features, which lets the ic stop switching when the input voltage falls below the specified range and restarts when the input voltage increases back within the range. the mains input voltage sensing circuit is shown figure 2. with the 0 50 100 150 200 250 300 350 400 450 500 550 0 25 50 75 100 125 150 175 200 fmin [khz] fmax_soft start [khz] 0 50 100 150 200 250 300 0 5 10 15 20 25 30 35 time [ms] frequency [khz] r cs2 r cs1 d cs1 d cs2 c s q 1 q 2 w p c cs1 v cs v bus c cs2
version 2.0 10 24 august 2009 half-bridge resonant controller ICE1HS01G functional description current source i hys connected between vins and ground, an adjustable hysteresis between the on and off input voltage can be created as [4] the mains input voltage is divided by r ins1 and r ins2 as shown in the typical application circuit. a current source i hys is connected from vins pin to ground in the ic. if the on and off threshold for mains voltage is v mainon and v mainoff , the resistors can be decided as [5] [6] 3.7 over load protection in case of open control loop or output over load fault, the fb voltage will increase to its maximum level. if fb voltage is higher than v fbh and this condition last longer than a fixed blanking time of t olp (20ms), the ic will start the extended blanking timer. the extended blanking timer is realized by charging and discharging the filter capacitor c fb via the pull up resistor r fb and q fb . the circuit for extended blanking timer is shown in figure 11. figure 11 circuit connected to fb pin the fb voltage waveform during a olp period is shown in figure 12. after fb voltage has been higher than v fbh for the fixed blanking time t1 shown in figure 11, ic will use internal switch q fb to discharge v fb to v fbl . after the switch q fb is released, c fb will be charged up by vdd through r fb . the time needed for c fb being charged to v fbh can be calculated as [7] if c fb is 10nf, the time is about 439us. after v fb reaches v fbh , an internal counter will increase by 1 and the capacitor is discharged to 0.5v by q fb again. the charging and discharging process of c fb will be repeated for n olp_e times if the fault condition still exist. after the last time of n olp_e the fb voltage is pulled down to zero, ic will stop the switch when fb voltage rises to v fbh again. this is called over load/open loop proteciton. during the charging and discharging period, the ic will operate with frequency determined by i chg_min and i cs . figure 12 fb voltage waveform during over load protection if the converter returns to normal operation during the extended blanking time period, fb voltage can not reach v fbh again. therefore, after fb voltage is discharged to zero voltage, if it can not reach v fbh within t olp_r , ic will reset all the fault timer to zero and return to normal operation. after ic enters into olp, both switches will be stopped. however, the ic remains active and will try to start with soft start after an adjustable period. this period is realized by charging and discharging the capacitor c ins connected to vins pin for n olp_r times. the time is therefore determined by the capacitor c ins and resistor r ins1 and r ins2 . the circuit implementation of the adjustable off time is shown in figure 13 and figure 14 shows the voltage waveform of vins in this case. as shown in figure 14, the c ins is discharged to v ins_l when ic enters into olp at time t1. after that, an internal constant current source i inst is turned on to charge c ins . once the voltage on vins is charged to v ins_h , the current source will be turned off and c ins is discharged by another switch q3 to v ins_l again. the charging and discharging of c ins is thought as one cycle. the cylce time is al so influenced by the bus v hys r ins1 i hys ? = r ins1 v mainon v mainoff ? i hys ------------------------------------------ - = r ins2 r ins1 v inson v mainoff v inson ? ------------------------------------------ - ? = fb i 1.0v i fb vdd r fb c fb1 4.5v t olp 24ms c fb3 c fb2 ena ena 0.5v s r q q fb clk olp up reset t olp _ r 1.2ms s r q c fb4 ena c fb5 ena 0.8v 0.5v s r q gate_off ar i ref s r q ar_r ICE1HS01G t chg v dd v ? fbh v dd v fbl ? --------------------------- ?? ?? ln ?r fb c fb ?? = v fb (v) time 5v 4.5v t 1 t 2 t 3 0.5v
half-bridge resonant controller ICE1HS01G version 2.0 11 24 august 2009 voltage. the charging time t cha and discharging time t disc can be respectively approximated as [8] [9] in [8], r eq is the equivalent resistance for parallelling of r ins1 and r ins2 . [10] in [9], r eq2 is the equivalent resistance for parallelling of r ins1 , r ins2 and r q3 (900ohm typically). [11] ic will repeat the charging and discharging process for n olp_r times. after that, ic will turn off the switches for both charging and discharging. in addition, the current source for hysteresis will be turned on and another blanking time of t bl_vins , the time between t2 and t3 as shown in fiugre 14, will be added so that vins pin fully recovers and represents the bus voltage information. ic will start the soft start after the additional blanking time in case v vins is higher than the v vinson . figure 13 circuit connected to vins pin figure 14 vins voltage waveform during blanking time after olp and before ic restarts t cha v bus r eq r ins1 ------------- ? ?? ?? i inst r eq ? () v insh ? + v bus r eq r ins1 ------------- ? ?? ?? i inst r eq ? () v insl ? + --------------------------------------------------------------------------------------------- ?? ?? ?? ?? ?? ln ?r eq c ins ?? = t disc v bus r eq2 r ins1 ------------- v insl ? ? v bus r eq2 r ins1 ------------- ? v insh ? --------------------------------------------------- - ?? ?? ?? ?? ?? ln ?r eq2 c ins ?? = r eq 1 1 r ins1 ------------- 1 r ins2 ------------- + --------------------------------- - = r eq2 1 1 r ins1 ------------- 1 r ins2 ------------- 1 r q3 -------- - ++ ------------------------------------------------- - = vins c v1 i hys 1.25v c v3 c v2 ena ena 0.5v 4.5v i inst vdd r s q q clk counter t bl_vins 20ms ar_r ar mains_ok ICE1HS01G q3 q1 q2 v vins (v) time v ins_h t 1 t 2 t 3 v ins _ l
half-bridge resonant controller ICE1HS01G electrical characteristics version 2.0 12 24 august 2009 4 electrical characteristics note: all voltages are measured with respect to ground (pin 5). the voltage levels are valid if other ratings are not violated. 4.1 absolute maximum ratings note: absolute maximum ratings are defined as ratings, which when being exceeded may lead to destruction of the integrated circuit. for the same reason make sure, that any capacitor that will be connected to pin 8 (vcc) is discharged before assembling the application circuit. 1) stress beyond this limit may destroy the device. func tional operation of the device at this or any condition beyond those indicated under 4.2 operating range is not implied. exposure to absolute maximum rated conditions for extended periods of time may affect device reliability.. 2) according to eia/jesd22-a114-b (discharging a 100pf capacitor through a 1.5k ? series resistor) 4.2 operating range note: within the operating range the ic operates as described in the functional description. parameter symbol limit values unit remarks min. max. vcc supply voltage v vcc -0.3 20.5 1) v v hg voltage v lg -0.3 18 v v lg voltage v lg -0.3 18 v cs voltage v cs -0.3 5 v fb voltage v fb -0.3 5 v vins voltage v vins -0.3 5 v fmin voltage v fmin -0.3 5 v maximum source current on fmin i fmin 2.5 ma junction temperature t j -40 125 c storage temperature t s -55 150 c thermal resistance junction-ambient for pg-dso-8 r thja (dso) - 185 k/w pg-dso-8 esd capability v esd - 2 kv human body model 2) parameter symbol limit values unit remarks min. max. vcc supply voltage v vcc 10.2 18 v junction temperature t jcon -25 125 c
half-bridge resonant controller ICE1HS01G electrical characteristics version 2.0 13 24 august 2009 4.3 characteristics 4.3.1 supply section note: the electrical characteristics involve the spread of values guaranteed within the specified supply voltage and junction temperature range t j from ? 25 o c to 125 o c. typical values represent the median values, which are related to 25c. if not other wise stated, a supply voltage of v cc = 15 v is assumed. 4.3.2 oscillator section parameter symbol limit values unit test condition min. typ. max. start up current i vccstart 200 350 530 av vccon -0.1v supply current in operation with inactive gate i vccop - 3 ma no switching; supply current in normal operation with active gate i vccactive - 5.8 ma freq=50khz r fmin =30k ? v fb =4.2v, v cs =0v c l =2.2nf,v vcc =15v vcc turn-on threshold v vccon 11.3 12 12.7 v vcc hysteresis v vcchys 0.68 0.95 1.25 v vcc turn-off threshold v vccoff -v vccon - v vcchys -v trimmed reference voltage v ref 4.90 5.0 5.10 v i fb =0 parameter symbol limit values unit test condition min. typ. max. minimum switching frequency f min 47 50 53 khz r fmin =30k ?; maximum switching frequency during normal operation f max_n 128 khz r fmin =30k ?; v fb =0.6v, v cs =0v, after softstart maximum switching frequency during protection f max_p 203 khz r fmin =30k ?; v fb =0.6v, v cs =1v absolute maximum switching frequency f max_abs 609 khz r fmin =4.8k ?, v fb =0.9v, v cs =1v, soft start first cycle reference voltage on fmin v oscref 1.44 1.5 1.56 v dead time t d 340 380 420 ns r fmin =30k ?; v fb =0.6v, v cs =0v oscillation duty cycle d 48 50 52 % based on calculation
half-bridge resonant controller ICE1HS01G electrical characteristics version 2.0 14 24 august 2009 4.3.3 input voltage sense 4.3.4 current sense parameter symbol limit values unit test condition min. typ. max. input voltage on threshold v vinson 1.2 1.25 1.3 v bias current on vins pin i hys 91215 a blankint time for leaving mains undervoltage protection t vins_out 500 s blanking time for entering mains under voltage protection t vins_in 50 s parameter symbol limit values unit test condition min. typ. max. overcurrent protection low v csl 0.75 0.8 0.85 v hysteresis voltage for overcurrent protection low 50 mv overcurrent protection high v csh 1.57 1.63 1.7 v blanking time for ocp latch t ocp_l _300_ns maximum switching frequency during over current protection f max_c 163 khz r fmin =30k ?; v fb =4.2v, v cs =1v, after soft start and 2ms after v cs higher than 0.8v counter input voltage high v cs_ch 4.5 v not subject to test counter input voltage low level v cs_cl 0.5 v not subject to test blanking time after each gate is turned on t leb 250 ns
half-bridge resonant controller ICE1HS01G electrical characteristics version 2.0 15 24 august 2009 4.3.5 soft start 4.3.6 feedback note: the trend of all the voltage levels in the control unit is the same regarding the deviation except v vccovp parameter symbol limit values unit test condition min. typ. max. soft start timer t ss - 1 - ms test as a 32ms softstart time soft start steps n ss 32 ratio of i ss over i chgmin - 3.43 - not subject to test soft start frequency f ss_step 184 khz r fmin =30k ?; td=380ns; first cycle softstart parameter symbol limit values unit test condition min. typ. max. feedback voltage below which there is no regulation v fb_min 0.9 v feedback voltage above which there is no regulation v fb_max 3.9 v pull up resistance r fb 15 20 25 k ? feedback voltage below which there is no switch v fb_off 0.2 v feedback voltage above which ic resumes switch v fb_on 0.3 v blanking time for switch on and off t fb 200 ns
half-bridge resonant controller ICE1HS01G electrical characteristics version 2.0 16 24 august 2009 4.3.7 over load/open loop protection 4.3.8 gate driver feedback voltage for open loop/over load protection v fbh 4.5 v feedback votlage high level for extended timer v fb_ch 4.5 v feedback votlage low level for extended timer v fb_cl 0.5 v on resistance of pulling down switch q fb r qfb 900 ohm fixed blanking time for open loop/over load protection t olp_f -20-ms maximum time for fb voltage to go up to v fbh during extended blanking timer t olp_r -1.28-ms extended counter n olp_e 512 charging current on vins pin for restart time i inst 750 a maximum voltage on vins pin charged by i inst v ins_h 4.5 v minimum voltage on vins pin pulled down by q 3 v ins_l 0.5 v on resistance of pulling down switch q 3 r q3 900 ohm restart counter number n olp_r 2048 blanking time before ic restarts after restart counter reaches 2048 t bl_vins -20-ms parameter symbol limit values unit test condition min. typ. max. output voltage at logic low v gatelow -1.5vv vcc =5v i out = 20ma output voltage at logic high v gatehigh 9vv vcc =v vccoff +0.2v c l =2.2nf output voltage active shut down v gateasd 1.0 v v vcc = 5v i out = 20ma rise time t rise -100-nsc l = 2.2nf fall time t fall -25-nsc l = 2.2nf gate current, peak rising edge i gate_r 1-ac l = 2.2nf 1) gate current, peak falling edge i gate_f --1.5ac l = 2.2nf 1)
half-bridge resonant controller ICE1HS01G outline dimension version 2.0 17 24 august 2009 1) design characteristics (not meant for production testing) 5 outline dimension figure 15 pg-dso-8 *dimensions in mm pg-dso-8 ( plastic dual small outline)
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