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MP6205 3.3v/5v, single-channel 500ma current-limited power distribution switch MP6205 rev. 0. 92 www.monolithicpower.com 1 9/23/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. the future of analog ic technology description the MP6205 power distribution switch features internal current limiting to prevent damage to host devices due to faulty load conditions. the MP6205 analog switch features 90m ? on-resistance and operates from 2.7v to 5.5v input. it is available with a guaranteed current limit, making it ideal for load switching applications. the MP6205 has built-in protection for both over current and increased thermal stress. for over cu rrent, the device will limit the current by changing to a constant current mode. as the temperature increases as a result of short circuit, the device will shut off. the device will recover once the device temperature reduces to approx 120 c. the MP6205 is available in qfn8, msop8e, soic8e packages. features ? 500ma continuous current ? accurate current limit ? 2.7v to 5.5v supply range ? 140ua quiescent current ? 90m ? mosfet ? thermal-shutdown protection ? under-voltage lockout ? 8ms flag deglitch time ? no flag glitch during power up ? reverse current blocking ? qfn8, msop8e, soic8e packages ? ul recognized: e322138 applications ? smartphone and pda ? portable gps device ? set-top-box ? usb power distribution ?mps? and ?the future of analog ic technology? are trademarks of monolithic power systems, inc. typical application out MP6205 single-channel 1 2, 3 4 5 6, 7, 8 +5v to v bus usb ports flag in gnd en off on ul recognized component
MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 2 9/23/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. ordering information part number * enable switch maximum continuous load current maximum short-circuit current @ t a =25 c package top marking temperature MP6205dh msop8e 6205d MP6205dd qfn8 (2mm x 3mm) 7cyw MP6205dn active high single 500ma 1100ma soic8e MP6205dn ?40 c to +85 c * for tape & reel, add suffix ?z (eg. MP6205d_?z). for rohs compliant packaging, add suffix ?lf. (eg. MP6205d_?lf?z) package reference 1 2 3 4 8 7 6 5 top view gnd in in en out out out flag exposed pad on backside connect to gnd top view gnd in in en 1 2 3 4 n/c out out flag 8 7 6 5 exposed pad on backside connect to gnd gnd in in en n/c n/c out flag 1 2 3 4 8 7 6 5 top view exposed pad on backside connect to gnd msop8e qfn8 (2mm x 3mm) soic8e absolute maxi mum ratings (1) in .................................................-0.3v to +6.0v en, flag, out to gnd ..............-0.3v to +6.0v junction temperature ...............................150c lead temperature ....................................260c storage temperature............... ? 65c to +150c operating temperature.............. ? 40c to +85c thermal resistance (2) ja jc msop8e .................................55 ...... 12 ... c/w qfn8 (2mm x 3mm) ...............55 ...... 12 ... c/w soic8e ...................................50 ...... 10 ... c/w notes: 1) exceeding these ratings may damage the device. 2) measured on jesd51-7 4-layer pcb.
MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 3 9/23/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. electrical characteristics (3) 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 single channel 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 550 1100 ma trip current current ramp (slew rate 100a/s) on output 1.2 1.6 a under-voltage lockout rising edge 1.95 2.65 v under-voltage hysteresis 250 mv fet on resistance i out =100ma and-40c MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 4 9/23/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. pin functions pin # msop pin # soic pin # qfn name description 1 1 1 gnd, exposed pad ground. connect exposed pad to gnd plane for optimal thermal performance 2, 3 2, 3 2, 3 in input voltage. accepts 2.7v to 5.5v input. 4 4 4 en enable input. active high. 5 5 5 flag in-to-out over-current, active -low output flag. open-drain. 6, 7, 8 6 6, 7 out power-distribution switch output. - 7, 8 8 n/c 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
MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 5 9/23/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. typical performanc e characteristics v in =5.5v, c l = 2.2f, t a = +25oc, unless otherwise noted. 0 0.5 1 1.5 2 2.5 3.5 3 2.5 3 3.5 4 4.5 5 5.5 6 2.5 3 3.5 4 4.5 5 5.5 6 input voltage (v) input voltage (v) turn on delay (ms) static drain-source on-state resistance vs. input voltage v en =5v, i out =0.5a input to output voltage vs. load current v en =5v current limit vs. input voltage v en =5v supply current, output enabled vs. input voltage v en =5v turn off delay (ms) output current (a) 2.533.544.555.56 2.5 3 3.5 4 4.5 5 5.5 6 2.5 3 3.5 4 4.5 5 5.5 6 input voltage (v) input voltage (v) input voltage (v) input to output voltage (mv) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 20 40 60 80 100 120 140 160 0 10 20 30 40 50 60 70 80 90 0.8 0.9 1 1.1 1.2 1.3 1.4 2 2.5 3 3.5 4 4.5 5 5.5 6 trip current (a) input voltage (v) threshold trip current vs. input voltage current limit response time vs. peak current peak current (a) 0 5 10 15 20 25 30 35 40 45 012345678910 0.75 0.8 0.85 0.9 0.95 1 1.05 current limit (a) 80 90 100 110 120 130 140 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
MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 6 9/23/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. typical performanc e characteristics (continued) v in =5.5v, c l = 2.2f, t a = +25oc, unless otherwise noted. flag 5v/div v out 2v/div i out 0.2a/div en 2v/div 4ms/div 1s/div 1ms/div threshold trip current with ramped load on enabled device ramped load on enabled device short circuit current, device enabled into short 4ms/div 2ms/div flag 2v/div 2ms/div v out 2v/div v out 2v/div v out 2v/div v out 2v/div v out 2v/div i out 0.2a/div i out 0.5a/div i out 0.5a/div i out 2a/div en 2v/div en 2v/div en 5v/div en 5v/div en 5v/div
MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 7 9/23/2009 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- + + -- figure 2?functional block diagram
MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 8 9/23/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. detailed description over current when the load exceeds trip current (minimum threshold current triggering constant-current mode) or a short is present, MP6205 switches into to a constant-current mode (current limit value). MP6205 will be shutdown only if the overcurrent condition stays long enough to trigger thermal protection. trigger overcurrent protection for different overload conditions occurring in applications: 1) the output has been shorted or overloaded before the device is enabled or input applied. MP6205 detects the short or overload and immediately switches into a 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 MP6205 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 an over temp. or a voltage lockout. 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 MP6205 is operating correctly. this uvlo circuit also ensures that there is no operation until the input voltage reaches the minimum spec. enable the logic pin disables the chip to reduce the supply current. the device will operate once the enable signal reaches the appropriate level. the input is compatible with both coms and ttl.
MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 9 9/23/2009 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, placing a high-value electrolytic capacitor on the output pin(s) is recommended when the output load is heavy. out MP6205 single-channel 1 2, 3 4 5 6, 7, 8 +5v to v bus usb ports flag in gnd en off on figure 3?application circuit
MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 10 9/23/2009 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)
MP6205 ?current-limited power distribution switche MP6205 rev. 0. 92 www.monolithicpower.com 11 9/23/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. qfn8 (2mm x 3mm) side view top view bottom view 2.90 3.10 1.90 2.10 0.00 0.05 pin 1 id marking 1.70 0.50 0.25 recommended land pattern 2.90 note: 1) all dimensions are in millimeters. 2) exposed paddle size does not include mold flash. 3) lead coplanarity shall be 0.10 millimeter max. 4) drawing conforms to jedec mo-229, variation vced-2. 5) drawing is not to scale. 1.60 0.70 pin 1 id option b r0.20 typ. detail a pin 1 id index area 1 8 5 4 1.65 1.85 1.50 1.70 0.50 bsc 0.18 0.30 pin 1 id see detail a 0.30 0.50 0.80 1.00 0.20 ref pin 1 id option a 0.30x45? typ.
MP6205 ?current-limited power distribution switche 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. MP6205 rev. 0.92 www.monolithicpower.com 12 9/23/2009 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2009 mps. all rights reserved. soic8e (exposed pad)

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