Products
Power Management
Semtech SC803
Not Recommended For New Designs
Not Recommended For New Design
The SC803 is a fully integrated, single cell, constant-current, constant-voltage Lithium-Ion battery charger management system.
Overview
Features
- Fully integrated charger with FET pass transistor, reverse-blocking diode, sense resistor and thermal protection
- Complete voltage ranges of 4.1 V, 4.2 V, & adjustable
- Programmable precharge, fastcharge & termination current
- Battery voltage controlled to 1% accuracy
- Soft-start for step load and adaptor plug-in
- Up to 1.5 A continuous charge current
- Charge current monitor output from microcontroller or ADC Interface
- Input voltages range from 4.2 V to 7 V
- 0.1 µA battery drain current in shutdown and monitor modes
- Operates without a battery in regulated LDO mode
- Small 4 mm x 4 mm 16-lead MLP package
- Low thermal impedance of 50°C/watt
- Few external components
- Over-current protection in all charging modes
- Over-voltage protection with fault pin output
- All outputs able to drive LEDs and interface to host processor
- Remote Kelvin sensing at the battery terminal
- Small input & output filter capacitors
- Status output communicates charging and end of charge cycle
Applications
- Cellular phones
- PDAs
- Handheld meters
- Charging stations
- Handheld computers
- Digital cameras
- Programmable current source
Packaging
MLPQ-16 (4X4 mm)
Order Codes
- SC803IMLTR: Package Minimum Tape & Reel Only