产品
电源管理
Semtech SC801
Fully Integrated High Current Lithium-Ion Battery Charger System
Obsolete - this device is no longer available.
概览
功能
- Fully integrated charger with
- FET pass transistor
- Reverse blocking diode
- Sense resistor
- Thermal protection
- Input voltage range 4.2 V to 14 V
- Complete voltage ranges
- 4.1 V
- 4.2 V
- Adjustable
- Programmable pre-charge, fast-charge, and 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
- 0.1 µA battery drain current in shutdown and monitor modes
- Operates without a battery in regulated LDO mode
- Low thermal impedance of 50°C/watt
- Few external components
- Over-current protection in all charging modes
- Over-voltage protection
- All output can 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
- Charges Li-ion, Li-polymer, NiCd and NiMH batteries
- Now available in lead-free packaging
- Small 4 mm x 4 mm 16-lead MLP package
应用
- Cellular phones
- PDAs
- Handheld meters
- Charging stations
- Handheld computers
- Digital cameras
封装
- MLPQ-16 (4X4 mm)