Advance Datasheet High-side Power Distribution Switch with Enable and Flag AP2820 General Description Features The AP2820 is an integrated high-side power switch Low MOSFET on Resistance: 60m that consists of N-Channel MOSFET, charge pump, Compliant to USB Specifications over current & temperature and other related protection Available 2 Versions of Load Ability: circuits. The switchs low R , 60m, is designed Guarantee 2.0A Continuous Load for A/B/C/D DS(ON) to meet USB voltage drop requirements. The IC Version includes soft-start to limit inrush current, over-current Guarantee 2.5A Continuous Load for E/F/G/H protection, load short protection with fold-back, and Version thermal shutdown to avoid switch failure during hot Logic Level Enable Pin: Available with plug-in. Under voltage lockout (UVLO) function is Active-high or Active-low Version used to ensure the device remain off unless there is a Operating Voltage Range: 2.7V to 5.5V valid input voltage present. A FLAG output is Low Supply Current: available to indicate fault conditions to the local USB 75A (Typ.) (For A/B/C/D versions) controller. 80A (Typ.) (For E/F/G/H versions) Low Shutdown Current: 1.0A (Max) The AP2820 is available in standard packages of Under-voltage Lockout SOIC-8 and MSOP-8. Soft Start-up Over-current Protection Over Temperature Protection Applications Load Short Protection with Fold-back No Reverse Current When Power Off USB Power Management Deglitched FLAG Output with Open Drain USB Bus/Self Powered Hubs With Output Shutdown Pull-low Resistor for Hot-plug Power Supplies A/C/E/G Versions Battery-charger Circuits UL Approved (File No. E339337) Notebooks, Motherboard PCs Nemko CB Scheme IEC60950-1, Ref. Certif No. NO62093 SOIC-8 MSOP-8 Figure 1. Package Types of AP2820 Jul. 2012 Rev 1. 7 BCD Semiconductor Manufacturing Limited 1 Advance Datasheet High-side Power Distribution Switch with Enable and Flag AP2820 Pin Configuration M/MM Package SOIC-8/MSOP-8 Figure 2. Pin Configuration of AP2820 (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 5 in application, active low to indicate OCP or OTP 6, 7, 8 VOUT Switch output voltage Jul. 2012 Rev 1. 7 BCD Semiconductor Manufacturing Limited 2