MCP73871
MCP73871 is Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controller manufactured by Microchip Technology.
Features
- Integrated System Load Sharing and Battery Charge Management
- Simultaneously Power the System and Charge the Li-Ion Battery
- Voltage Proportional Current Control (VPCC) ensures system load has priority over Li-Ion battery charge current
- Low-Loss Power-Path Management with Ideal Diode Operation
- plete Linear Charge Management Controller
- Integrated Pass Transistors
- Integrated Current Sense
- Integrated Reverse Discharge Protection
- Selectable Input Power Sources: USB Port or AC-DC Wall Adapter
- Preset High Accuracy Charge Voltage Options:
- 4.10V, 4.20V, 4.35V or 4.40V
- ±0.5% Regulation Tolerance
- Constant Current/Constant Voltage (CC/CV) Operation with Thermal Regulation
- Maximum 1.8A Total Input Current Control
- Resistor Programmable Fast Charge Current
Control: 50 m A to 1A
- Resistor Programmable Termination Set Point
- Selectable USB Input Current Control
- Absolute Maximum: 100 m A (L)/500 m A (H)
- Automatic Recharge
- Automatic End-of-Charge Control
- Safety Timer With Timer Enable/Disable Control
- 0.1C Preconditioning for Deeply Depleted Cells
- Battery Cell Temperature Monitor
- Undervoltage Lockout (UVLO)
- Low Battery Status Indicator (LBO)
- Power Good Status Indicator (PG)
- Charge Status and Fault Condition Indicators
- Numerous Selectable Options Available for a
Variety of Applications:
- Refer to Section 1.0 “Electrical
Characteristics” for Selectable Options
- Refer to the Product Identification System for Standard Options
- Temperature Range: -40°C to +85°C
- Packaging: 20-Lead QFN (4 mm x 4 mm)
Applications
- GPSs/Navigators
- PDAs and Smart Phones
- Portable Media Players and MP3...
