NOT RECOMMENDED FOR NEW DESIGN - USE AP2141D/AP2151D Data Sheet 500mA High-side Power Distribution Switch with Enable and Flag AP2805 General Description Features The AP2805 is an integrated high-side power switch Low MOSFET on Resistance: that consists of N-Channel MOSFET, charge pump, 60m V =5.0V IN over current & temperature and other related protection Compliant to USB Specifications circuits. The switchs low RDS (ON), 60m, design Operating Voltage Range: 2.7V to 5.5V easily to meet USB voltage drop requirements. It Low Supply Current: 60A (Typ.) includes soft-start to limit inrush current, over-current Low Shutdown Current: 1.0A (Max) protection, load short protection with fold-back, and Guarantee 0.5A Continuous Load thermal shutdown to avoid switch failure during hot Current Limit: 0.7A (Min), 1.4A (Max) plug-in. Under voltage lockout (UVLO) function is Under-voltage Lockout used to ensure the device remain off unless there is a Logic Level Enable Pin: Available in valid input voltage present. A Flag output is available Active-high or Active-low Version to indicate fault conditions to the local USB Over-current Protection controller. Over Temperature Protection Load Short Protection with Fold-back The AP2805 is available in standard packages of No Reverse Current When Power Off SOIC-8 and MSOP-8. Deglitched Flag Output with Open Drain With Output Shutdown Pull-low Resistor for A/C Versions UL Approved (File No. E339337) Nemko CB Scheme IEC60950-1, Ref. Certif No. NO67288 Applications USB Power Management USB Bus/Self Powered Hubs Hot-plug Power Supplies Battery-charger Circuits Notebooks, Motherboard PCs SOIC-8 MSOP-8 Figure 1. Package Types of AP2805 Aug. 2012 Rev 1. 3 BCD Semiconductor Manufacturing Limited 1 NOT RECOMMENDED FOR NEW DESIGNData Sheet 500mA High-side Power Distribution Switch with Enable and Flag AP2805 Pin Configuration M/MM Package SOIC-8/MSOP-8 Figure 2. Pin Configuration of AP2805 (Top View) Pin Descriptions Pin Number Pin Name Function 1 GND Ground 2, 3 VIN Supply input pin 4 Chip enable control input, active low or high Fault flag pin, output with open drain, need a pull-up resistor in 5 application, active low to indicate OCP or OTP 6, 7, 8 VOUT Switch output voltage Aug. 2012 Rev 1. 3 BCD Semiconductor Manufacturing Limited 2 NOT RECOMMENDED FOR NEW DESIGN