SC803 Datasheet PDF | Semtech Corporation

Semtech Corporation SC803

The SC803 is a fully integrated, single cell, constant-current constant-voltage Lithium-Ion battery charger management system. The SC803 has built in intelligence and extreme functionality. When the battery voltage is below 2.8V the charger operates in a pre-charge mode with a charging current of up to 125mA based on the ITERM pin resistor.

Part No.	SC803
Datasheet	SC803 Download
Manufacturer	Semtech Corporation
Description	Fully Integrated High Current Lithium-Ion Battery Charger System
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DESCRIPTION

This pre-charge mode is set to limit power dissipation due to an undercharged battery. When the battery voltage exceeds 2.8V, the charger enters a fast charge mode. In this mode, the SC803 delivers up to 1.5A to the battery based on the IPRGM pin resistor. SC803

FEATURES

Fully integrated charger with FET pass transistor, reverse-blocking diode, sense resistor and thermal protection Complete voltage ranges of 4.1V, 4.2V & adjustable Programmable precharge, fastcharge & termination current Battery voltage controlled to 1% accuracy Soft-start for step load and adaptor plug-in Up to 1.5A continuous charge current Charge current monitor output from microcontroller or ADC Interface The part also features current termination, ending the charge cycle when the battery is charged and the charge Input voltages range from 4.2V to 7V current drops below the current programmed by the 0.1µA Battery drain current in shutdown and monitor modes ITERM pin resistor. In additi...