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