MP62350/MP62351 3.3V/5V, Dual-Channel, 500mA Current-Limited Power Distribution Switches With Output Discharge The Future of Analog IC Technology DESCRIPTION FEATURES 500mA Continuous Current The MP62350/MP62351 Power Distribution Accurate Current Limit Switch features internal current limiting to Output Discharge Function prevent damage to host devices due to faulty load conditions. The MP62350/MP62351 2.7V to 5.5V Supply Range analog switch has 85m on-resistance and 140uA Quiescent Current operates from 2.7V to 5.5V input. It is available 85m MOSFET with guaranteed current limits, making it ideal Thermal-Shutdown Protection for load switching applications. The Under-Voltage Lockout MP62350/MP62351 has built-in protection for 8ms FLAG Deglitch Time both over current and increased thermal stress. No FLAG Glitch During Power Up For over current, the device will limit the current Reverse Current Blocking by changing to a constant current mode. Active High & Active Low Options As the temperature increases as a result of UL Recognized: Pending short circuit, then the device will shut off. The APPLICATIONS device will recover once the device temperature Smartphone and PDA reduces to approx 120 C. Portable GPS Device The MP62350/MP62351 included a discharge Notebook PC function that provides a resistive discharge path Set-top-box for the external output capacitor when the part Telecom and Network Systems is disabled. PC Card Hot Swap The MP62350/MP62351 is available in 8-pin USB Power Distribution MSOP and SOIC packages. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION +5V 2 6 To USB Controller GND FLAG1 Output 1 8 7 IN OUT1 MP62350 Output 2 1 5 EN1 OUT2 4 3 EN2 FLAG2 DUAL-CHANNEL MP62350/MP62351 Rev. 0.91 www.MonolithicPower.com 1 9/18/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2009 MPS. All Rights Reserved. MP62350/MP62351 CURRENT-LIMITED POWER DISTRIBUTION SWITCHES ORDERING INFORMATION Maximum Typical Short- Part Number Enable Switch Continuous Circuit Current Package Temperature Load Current T =25C A MP62351ES Active High Dual 0.5A 750mA SOIC8 MP62351EK Active High Dual 0.5A 750mA MSOP8 20 C to +85C MP62350ES Active Low Dual 0.5A 750mA SOIC8 MP62350EK Active Low Dual 0.5A 750mA MSOP8 * For Tape & Reel, add suffix Z (eg. MP62350/MP62351ESZ). For RoHS Compliant Packaging, add suffix LF (eg. MP62350/MP62351ESLFZ) PACKAGE REFERENCE TOP VIEW TOP VIEW EN1* EN1* 1 8 OUT1 1 8 OUT1 FLAG1 2 7 IN FLAG1 2 7 IN FLAG2 3 6 GND FLAG2 3 6 GND EN2* 4 5 OUT2 EN2* 4 5 OUT2 MSOP8 SOIC8 *: EN is active high for MP62351 (1) (3) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC SOIC8..................................... 90...... 42... C/W IN .................................................-0.3V to +6.0V MSOP8 .................................. 150..... 65... C/W EN, FLAG, OUT to GND..............-0.3V to +6.0V (2) Continuous Power Dissipation (T = +25C) A Notes: SOIC8......1.4W 1) Exceeding these ratings may damage the device. MSOP8....0.8W 2) The maximum allowable power dissipation is a function of the maximum junction temperature T(MAX), the junction-to- J Junction Temperature...............................150C ambient thermal resistance , and the ambient temperature JA Lead Temperature ....................................260C T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX)=(T (MAX)- Storage Temperature...............65C to +150C D J T )/ . Exceeding the maximum allowable power dissipation A JA Operating Temperature..............20C to +85C 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. MP62350/MP62351 Rev. 0.91 www.MonolithicPower.com 2 9/18/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2009 MPS. All Rights Reserved.