● Power Up System without Battery
● Charge Faster than Linear Chargers
● High-Accuracy Voltage and Current Regulation
● Input Current Regulation Accuracy: ±5% (100 mA and 500 mA)
● Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0°C to 125°C)
● Charge Current Regulation Accuracy: ±5%
● Input Voltage Based Dynamic Power Management (VIN DPM)
● Bad Adaptor Detection and Rejection
● Safety Limit Register for Maximum Charge Voltage and Current Limiting
● High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
● 20-V Absolute Maximum Input Voltage Rating
● 6.5-V Maximum Operating Input Voltage
● Built-In Input Current Sensing and Limiting
● Integrated Power FETs for Up To 1.55-A Charge Rate
● Programmable Charge Parameters through I2C™ Compatible Interface (up to 3.4 Mbps):
● Input Current Limit
● VIN DPM Threshold
● Fast-Charge/Termination Current
● Charge Regulation Voltage (3.5 V to 4.44 V)
● Low Charge Current Mode Enable/Disable
● Termination Enable/Disable
● Support up to 1.55A Charge Current using 55 mΩ Sensing Resistor
● Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle
● Automatic High Impedance Mode for Low Power Consumption
● Robust Protection
● Reverse Leakage Protection Prevents Battery Drainage
● Thermal Regulation and Protection
● Input/Output Overvoltage Protection
● Status Output for Charging and Faults
● USB Friendly Boot-Up Sequence
● Automatic Charging
● Boost Mode Operation for USB OTG
● Input Voltage Range (from Battery): 3.2 V to 4.5 V
● 2.1 mm × 2 mm 20-Pin WCSP Package
