Product Summary

The SC801IMLTR is a fully integrated, single cell, constant-current/constant-voltage Lithium-Ion\Li-Polymer batterycharger management system. The SC801 has built in intelligence and extreme functionality. When the batteryvoltage 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. This precharge mode is set to limit power dissipation due to an underchargedbattery. When the battery voltage exceeds 2.8V, thecharger enters a fast charge mode. In this mode, the SC801IMLTR1 delivers up to 1.5A to the battery based on theIPRGM pin resistor.

Parametrics

SC801IMLTR absolute maximum ratings: (1)Fully integrated charger with FET pass transistor, reverse-blocking diode, sense resistor and thermal protection ; (2)4.1V, 4.2V & Adjustable Output Voltage; (3)Programmable precharge, fastcharge & termination current; (4)Battery voltage controlled to 1% accuracy; (5)Soft-start for step load and adaptor plug-in; (6)Up to 1.5A continuous charge current; (7)Charge current monitor output from microcontrolleror ADC Interface; (8)Input voltages range from 4.2V to 14V; (9)0.1μA Battery leakage in shutdown and monitor modes.

Features

SC801IMLTR features: (1)Operates without a battery in regulated LDO mode; (2)Small 4mm x 4mm 16 lead MLP package; (3)Low thermal impedance of 50°°°°°C/watt; (4)Few external components; (5)Over current protection in all charging modes; (6)Over voltage protection; (7)All outputs able to drive LEDs and interface to host processor; (8)Remote Kelvin sensing at the battery terminal; (9)Small input & output filter capacitors; (10)Status output communicates charging and end ofcharge cycle.

Diagrams

SC801IMLTR block diagram

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