NOT RECOMMENDED FOR NEW DESIGN - NO ALTERNATE PART AP2822 0.5A to 2.0A HIGH-SIDE POWER DISTRIBUTION SWITCHES Description Pin Assignments The AP2822 is an integrated high-side power switch that consists of N- Channel MOSFET, charge pump, over current & temperature and other (Top View) (Top View) related protection circuits. The switchs low R , 85m is designed DS(ON) to meet USB voltage drop requirements. The IC includes soft-start to FLAG 1 5 VOUT EN 1 5 VOUT limit inrush current, over-current protection, load short protection with fold-back, and thermal shutdown to avoid switch failure during hot GND 2 2 GND plug-in. Under voltage lockout (UVLO) function is used to ensure the device remain off unless there is a valid input voltage present. A EN 3 4 VIN 3 FLAG 4 VIN FLAG output is available to indicate fault conditions to the local USB controller. (SOT-23-5/ K Package) (SOT-23-5/ KA Package) The AP2822 is available in the standard package of SOT-23-5. (Top View) (Top View) Features VOUT 1 5 VOUT VOUT 1 5 VIN Low MOSFET On Resistance: 85m Compliant to USB Specifications GND 2 GND 2 Available 4 Versions of Continuous Load: 0.5A/1.0A/1.5A/2.0A 4 Logic Level Enable Pin: Available with Active-high or Active-low VIN 3 EN FLAG 3 4 EN Version Operating Voltage Range: 2.7V to 5.5V (SOT-23-5/ KB Package) (SOT-23-5/ KE Package) Low Supply Current: 68A (Typ.) Low Shutdown Current: 1.0A (Max) Under-voltage Lockout Applications Soft Start-up USB Power Management Over-current Protection USB Bus/Self Powered Hubs Over Temperature Protection Hot-plug Power Supplies Load Short Protection with Fold-back Battery-charger Circuits No Reverse Current When Power Off Notebooks, Motherboard PCs Deglitched FLAG Output with Open Drain With Output Shutdown Pull-low Resistor (For Auto-discharge) (AP2822A/AP2822B/AP2822C/AP2822D/AP2822E/AP2822F/AP 2822G/AP2822H) Without Output Shutdown Pull-low Resistor (For No Auto-discharge) (AP2822AN/AP2822BN/AP2822CN/AP2822DN/AP2822EN/AP2 822FN/AP2822GN/AP2822HN) Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See NOT RECOMMENDED FOR NEW DESIGN - NO ALTERNATE PART AP2822 Typical Applications Circuit R 10k V =5V USB Controller IN 4(4) 3 5 1(3) 3 VIN FLAG C IN AP2822 (Note 4) 2.2F 3(1) 4 4 5(5) 1,5 1 EN VOUT V BUS Enable GND D+ C OUT 2(2) 2 2 D- 1F GND A(B) C D A: SOT-23-5(K Package) B: SOT-23-5(KA Package) C: SOT-23-5(KB Package) D: SOT-23-5(KE Package) Note 4: 2.2F input capacitor is enough in most application cases. If the VOUT is short to ground frequently during usage, large size input capacitor is necessary, recommend 22F. Pin Descriptions Pin Number Pin Name Function 1(K) Fault flag pin, output with open drain, need a pull-up resistor in application, FLAG active low to indicate OCP or OTP 3(KA/KE) 2 GND Ground 3(K) 1(KA) EN Chip enable control input, active low or high 4(KB/KE) 4(K/KA) 3(KB) VIN Supply input pin 5(KE) 5(K/KA) 1,5(KB) VOUT Switch output voltage 1(KE) 2 of 16 AP2822 November 2018 Diodes Incorporated www.diodes.com Document number: DS41399 Rev. 1 - 3