mp62150/mp62151 3.3v/5v, single-channel, 1.5a current-limited power distribution switch mp62150/mp62151 rev. 0.9 www.monolithicpower.com 1 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. the future of analog ic technology description the mp62150/mp62151 power distribution switch features internal current limiting to prevent damage to host devices due to faulty load conditions. the mp62150/mp62151 operates from a 2.7v or 5.5v nominal input voltage and includes 85m ? power mosfet to handle up to 1.5a continuous load with a 2.3a typical current limit. the mp62150/mp62151 has built-in protection for both over current and increased thermal stress. fo r over-current protection (ocp), the device will limit the current by going into a constant current mode. when continuous output overload condition exceeds power dissipation of the package, the thermal protection will shut the part off. the device will recover once the device temperature reduces to approx 120 c. the mp62150/mp62151 is available in msop8 package with exposed pad. features ? 1.5a continuous current ? accurate current limit ? 2.7v to 5.5v supply range ? 140ua quiescent current ? 85m ? mosfet ? thermal-shutdown protection ? under-voltage lockout ? 8ms flag deglitch time ? no flag glitch during power up ? reverse current blocking ? active high & active low options ? ll recognized: e322138 applications ? notebook pc ? set-top-box ? telecom and network systems ? pc card hot swap ? usb power distribution ?mps? and ?the future of analog ic technology? are registered trademarks of monolithic power systems, inc. typical application out mp62151 single-channel 1 2, 3 4 5 6, 7, 8 3.3v / 5v input to v bus usb ports flag in gnd en ul recognized component
mp62150/mp62151 ?current-limited power distribution switch mp62150/mp62151 rev. 0.9 www.monolithicpower.com 2 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. ordering information part number* enable switch maximum continuous load current typical short-circuit current @ t a =25c package top marking temperature mp62150dh active low single 1.5a 2.3a msop8e 62150dh ?40 c to +85 c mp62151dh active high single 1.5a 2.3a msop8e 62151dh ?40 c to +85 c * for tape & reel, add suffix ?z (eg. mp62150/mp62151dh ?z); for rohs compliant packaging, add suffix ?lf; (eg. mp62150/mp62151dh?l) package reference gnd in in en* out out out flag 1 2 3 4 8 7 6 5 top view exposed pad on backside mp62151/mp62150 single-channel *: en is active low for mp62350 absolute maxi mum ratings (1) in .................................................-0.3v to +6.0v en, flag, out to gnd ..............-0.3v to +6.0v continuous power dissipation (t a = +25c) (2) msop8e.................................................... 2.3w junction temperature ...............................150c lead temperature ....................................260c storage temperature............... ? 65c to +150c operating temperature.............. ? 40c to +85c thermal resistance (3) ja jc msop8e................................. 55 ...... 12... c/w notes: 1) exceeding these ratings may damage the device. 2) the maximum allowable power dissipation is a function of the maximum junction temperature t j (max), the junction-to- ambient thermal resistance ja , and the ambient temperature t a . the maximum allowable continuous power dissipation at any ambient temperature is calculated by p d (max) = (t j (max)-t a )/ ja . exceeding the maximum allowable powe r dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. internal thermal shutdown circuitry protects the device from permanent damage. 3) measured on jesd51-7, 4-layer pcb.
mp62150/mp62151 ?current-limited power distribution switch mp62150/mp62151 rev. 0.9 www.monolithicpower.com 3 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. electrical characteristics (4) v in =5v, t a =+25c, unless otherwise noted. parameter condition min typ max units in voltage range 2.7 5.5 v supply current en enabled, i out =0 140 160 a shutdown current device disable, v out =float, v in =5.5v 1 a off switch leakage device disable, v in =5.5v 1 a current limit 1.6 2.3 3.0 a trip current current ramp (slew rate 100a/s) on output 2.7 3.5 a under-voltage lockout rising edge 1.95 2.65 v under-voltage hysteresis 250 mv fet on resistance i out =100ma (-40c t a 85c) 85 130 m ? en input logic high voltage 2 v en input logic low voltage 0.8 v flag output logic low voltage i sink =5ma 0.4 v flag output high leakage current v in =v flag =5.5v 1 a thermal shutdown 140 c thermal shutdown hysteresis 20 c v in =5.5v, cl=1uf, rl=5 ? 0.9 ms v out rising time, tr (5) v in =2.7v, cl=1uf, rl=5 ? 1.7 ms v in =5.5v, cl=1uf, rl=5 ? 0.5 ms v out falling time, tf (6) v in =2.7v, cl=1uf, rl=5 ? 0.5 ms turn on time, ton (7) c l =100 f, rl=5 ? 3 ms turn off time, toff (8) c l =100 f, rl=5 ? 10 ms flag deglitch time 4 8 15 ms en input leakage -1 a reverse leakage current out=5.5v, in=gnd 0.2 a note: 4) production test at +25c. specifications over the temperature range are guaranteed by design and characterization. 5) measured from 10% to 90% output signal. 6) measured from 90% to 10% output signal. 7) measured from (50%) en signal to (90%) output signal. 8) measured from (50%) en signal to (10%) output signal.
mp62150/mp62151 ?current-limited power distribution switch mp62150/mp62151 rev. 0.9 www.monolithicpower.com 4 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. pin functions msop8e name description 1 gnd ground. 2, 3 in input voltage. accepts 2.7v to 5.5v input. 4 en active low: (mp62150), active high: (mp62151) 5 flag in-to-out over-current, active -low output flag. open-drain. 6, 7, 8 out in-to-out power-distribut ion output (for all 3 output pins) typical performanc e characteristics t a = +25oc, unless otherwise noted. v i (en x ) vi(enx) v o (out x ) out x rl cl v o (out x ) vo(outx) 50% 50% 50% 50% 90% 90% 90% 90% 10% 10% 10% 10% t on t r t f ton t off toff voltage waveforms test circuit figure 1?test circuit and voltage waveforms
mp62150/mp62151 ?current-limited power distribution switch mp62150/mp62151 rev. 0.9 www.monolithicpower.com 5 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. typical performanc e characteristics v in =5.5v, t a = +25oc, unless otherwise noted. 80 90 100 110 120 130 140 150 2.5 3 3.5 4 4.5 5 5.5 6 input voltage (v) 0 0.5 1 1.5 2 2.5 3 3.5 4 2.5 3 3.5 4 4.5 5 5.5 6 0 5 10 15 20 25 30 35791113 peak current (a) 2.2 2.4 2.6 2.8 3 3.2 2.5 3 3.5 4 4.5 5 5.5 6 input current (v) threshold trip current (a) 2.3 2.35 2.4 2.45 2.5 2.55 2.6 2.65 2.7 2.5 3 3.5 4 4.5 5 5.5 6 current limit (a) 0 50 100 150 200 250 0 0.5 1 1.5 2 output current (a) input to output voltage (mv) 0 20 40 60 100 80 120 140 160 2.5 3 3.5 4 4.5 5 5.5 6 input voltage (v) turn off delay (ms) 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 2.533.544.555.56 turn on delay (ms) input voltage (v) input voltage (v) vin=5.5v vin=5v vin=4.5v vin=3.3v vin=2.7v input voltage (v) static drain-source on-state resistance variation vs. ambient temperature v in =5v, i o =0.1a -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 -45 -30 -15 0 15 30 45 60 75 90
mp62150/mp62151 ?current-limited power distribution switch mp62150/mp62151 rev. 0.9 www.monolithicpower.com 6 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. typical performanc e characteristics v in =5.5v , t a = +25oc, unless otherwise noted. (continued)
mp62150/mp62151 ?current-limited power distribution switch mp62150/mp62151 rev. 0.9 www.monolithicpower.com 7 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. function block diagram vref deglitch logic charge pump gnd thermal sense uvlo in en flag out current sense amp -- -- -- -- -- -- -- -- -- -- -- -- -- -- + + -- figure2?functional block diagram detailed description over current when the load exceeds trip current (minimum threshold current triggering constant-current mode) or a short is present, mp62150/mp62151 switches into to a constant-current mode (current limit value). mp62150/mp62151 will be shutdown only if the over current condition stays long enough to trigger thermal protection. trigger over current protection for different overload conditions occurring in applications: 1) the output has been shorted or overloaded before the device is enabled or input applied. mp62150/mp62151 detects the short or overload and immediately switches into constant-current mode. 2) a short or an overload occurs after the device is enabled. after the current-limit circuit has been tripped (reached the trip current threshold), the device switches into constant- current mode. however, high current may flow for a short period of time before the current-limit circuit can react. 3 output current has been gradually increased beyond the recommended operating current. the load current rises until the trip current threshold is reached or until the thermal limit of the device is exceeded. the mp62150/mp62151 is capable of delivering current up to the trip current threshold without damaging the device. once the trip threshold has been reached, the device switches into its constant-current mode. flag response the flag pin is an open drain configuration. this fault will report a fail mode after an 8ms deglitch timeout. this is used to ensure that no false fault signals are reported. this internal deglitch circuit eliminates the need for extend components. the flag pin is not deglitched during over temperature or voltage lockout.
mp62150/mp62151 ?current-limited power distribution switch mp62150/mp62151 rev. 0.9 www.monolithicpower.com 8 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. thermal protection the purpose of thermal protection is to prevent damage in the ic by allowing exceptive current to flow and heating the junction. the die temperature is internally monitored until the thermal limit is reached. once this temperature is reached, the switch will turn off and allow the chip to cool. the switch has a built-in hysteresis. under-voltage lockout (uvlo) this circuit is used to monitor the input voltage to ensure that the mp62150/mp62151 is operating correctly. this uvlo circuit also ensures that is no operation until the input voltage reaches the minimum spec. enable the logic pin disables the switch to reduce overall supply current . the device will operate once the enable signal reaches the appropriate level. the logic input is compatible with both coms and ttl. .
mp62150/mp62151 ?current-limited power distribution switch mp62150/mp62151 rev. 0.9 www.monolithicpower.com 9 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. application information power-supply considerations over 10 f capacitor between in and gnd is recommended. this precaution reduces power- supply transients that may cause ringing on the input and improves the immunity of the device to short-circuit transients. in order to achieve smaller output load transient ripple, placing a high-value electrolytic capacitor on the output pin(s) is recommended when the load is heavy.
mp62150/mp62151 ?current-limited power distribution switch notice: the information in this document is subject to change wi thout notice. users should warra nt and guarantee that third party intellectual property rights are not infringed upon w hen integrating mps products into any application. mps will not assume any legal responsibility for any said applications. mp62150/mp62151 rev. 0.9 www.monolithicpower.com 10 9/18/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. package information msop8e (exposed pad) note: 1) control dimension is in inches. dimension in bracket is in millimeters. 2) package length does not include mold flash, protrusion or gate burr. 3) package width does not include interlead flash or protrusion. 4) lead coplanarity (bottom of leads after forming) shall be 0.004" inches max. 5) pin 1 identification has half or full circle option. 6) drawing meets jedec mo-187, variation aa-t. 7) drawing is not to scale. 0.030(0.75) 0.037(0.95) 0.043(1.10)max 0.002(0.05) 0.006(0.15) front view seating plane pin 1 id (note 5) 0.114(2.90) 0.122(3.10) 0.187(4.75) 0.199(5.05) 1 4 5 8 0.010(0.25) 0.014(0.35) 0.0256(0.65)bsc 0.114(2.90) 0.122(3.10) top view 0.004(0.10) 0.008(0.20) side view gauge plane 0.010(0.25) 0.016(0.40) 0.026(0.65) 0 o -6 o recommended land pattern 0.016(0.40) 0.0256(0.65)bsc 0.100(2.54) 0.181(4.60) 0.075(1.90) 0.040(1.00) exposed pad bottom view 0.087(2.20) 0.099(2.50) 0.062(1.58) 0.074(1.88)
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