技术特性

• "Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
• Power Path Circuit Ensures Fast System Startup with a Dead Battery when VBUS is Connected
• 1.55 A Maximum Charge Current
• Float Voltage Accuracy:
• ±0.5% at 25°C
• ±1% from 0 to 125°C
• ±5% Input and Charge Current Regulation Accuracy
• Temperature-Sense Input Prevents Auto-Charging for JEITA Compliance
• Thermal Regulation and Shutdown
• 4.2 V at 2.3 A Production Test Mode
• 5 V, 500 mA Boost Mode for USB OTG
• 28 V Absolute Maximum Input Voltage
• 6 V Maximum Input Operating Voltage
• Programmable through High-Speed I2C Interface (3.4 Mb/s) with Fast Mode Plus Compatibility
• Input Current
• Fast-Charge / Termination Current
• Float Voltage
• Termination Enable
• 3 MHz Synchronous Buck PWM Controller with Wide Duty Cycle Range
• Small Footprint 1 H External Inductor
• Safety Timer with Reset Control
• Dynamic Input Voltage Control
• Very Low Battery Current when Charger Inactive"

功能图框 FUNCTIONAL BLOCK DIAGRAM