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Features

? Port Power Switch with Two Current Limit Behaviors

- 2.9V to 5.5V Source Voltage Range

- Up to 2.5A Current with 55 m? on Resistance

- Overcurrent Trip or Constant Current Limiting

- Soft Turn-On Circuitry

- Programmable Current Limit

- Dynamic Thermal Management

- Undervoltage and Overvoltage Lockout

- Back-Drive, Back-Voltage Protection

- Latch or Auto-Recovery (Low Test Current)

Fault Handling

- Selectable Active-High or Active-Low Power

Switch Enable

- BC1.2 VBUS Discharge Port Renegotiation

Function

? Selectable/Automatic Cycling of Universal Serial

Bus (USB) Data Line Charger Emulation Profiles

- Customizable Emulation Profile Uses a

Unique Stimulus and Response Method

Useful for Future Profiles (Note 1)

- Supports Charger Emulation

- Allows for Active Cables

- USB-IF BC1.2 Charging Downstream Port

(CDP) and Dedicated Charging Port (DCP)

modes, Chinese Telecommunications Industry

Standard YD/T 1591-2009 and most Apple?

Inc. and RIM? Protocols Standard; others as

defined via the SMBus 2.0/I2C? Protocol

- USB 2.0 Compliant High-Speed Data Switch

(in Data Pass-Through, SDP, and CDP modes)

- Nine Preloaded Charger Emulation Profiles

for Maximum Compatibility Coverage of the

Peripheral Devices

- One Custom-Programmable Charger

Emulation Profile for Portable Device Support

for Fully Host-Controlled Charger Emulation

? Fault Alert Open-Drain Output

? Self-Contained Current Monitoring

? Low-Power Attach Detection and Open-Drain

(A_DET#) Pin

? Ultra Low-Power Sleep State

? Optional Split Supply Support for VBUS and VDD

for Low-Power in System Standby States

? Wake on Attach USB

? SMBus 2.0/I2C Communications

- Supports Block Write and Read

- Multiple SMBus Addresses

? Wide Operating Temperature Range: -40°C to +85°C

? IEC61000-4-2 8/15 kV Electrostatic Discharge

(ESD) Immunity

? UL Recognized and EN/IEC 60950-1 (CB)

Certified