Semtech SC802
Fully Integrated Lithium-Ion Battery-Charger System with Timer
The SC802 is a fully integrated, single cell, constant-current/constant-voltage Lithium-IonLithium Polymer battery charger. With an integrated timer and complete charge control algorithm, the SC802 is well suited for stand-alone charger applications. The SC802 contains programmable pre-charge, fast-charge, and termination current settings.
Features
- Fully integrated charger with FET pass transistor, reverse-blocking diode, sense resistor, timer, 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 glitch-free adaptor plug-in
- Up to 1 A continuous charge current
- Charge current monitor output for microcontroller or ADC interface
- Input voltage range from 4.2 V to 14 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
- NTC thermistor sense input
- Adjustable 6-hour programmable charge timer
- Over current protection in all charging modes
- Over voltage protection
- Remote Kelvin sensing at the battery terminals
- ADC input control capable
- Status output communicates charging and end of charge cycle
- Charges Li-ion, Li-polymer, NiCd and NiMH Batteries
Applications
- Cellular phones
- PDAs
- Handheld meters
- Charging stations
- Handheld computers
- Digital cameras
- Programmable current source
Packaging
MLPQ-16 (4X4 mm)
Order Codes
- SC802IMLTR: Package Minimum Tape & Reel Only
- SC802IMLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
Order Samples
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their products and speed up time-to-market.
For samples, use our Samples Request Form. Up to five free samples
may be requested.
Purchase
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Order Evaluation Boards
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Eval boards are readily available for most of our new and popular products. If you wish to request boards for other parts, simply type the part number in the “Select Part Number” field space of the order form. These will be subject to availability.
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