The SLM6635 is a 3A Li-Ion battery charger for 5V AC adapters. It is a synchronous step-down converter with a fixed frequency of 800KHz, so it has a charging efficiency of more than 92%, and its own heat generation is very small.

The SLM6635 includes a complete charge termination circuit, automatic recharge and a 4.35V preset charge voltage with an accuracy of ±1%. It integrates anti-backflow protection, output short circuit protection, chip and battery temperature protection and other functions.

The SLM6635 is packaged in an SOP8 with heat sink and requires very few external components, so it can be embedded in a variety of handheld applications as a high-efficiency charger for high-capacity batteries.

feature

■ 800KHz fixed switching frequency

■ Up to 92% output efficiency

■ Adjustable output current up to 3.5A

■ Automatic identification of input current, adaptor self-adaptation

■ Adjustable output voltage

■ No need for high precision milliohm resistors

■ No need for anti-backflow diode

■ No need for external power MOS tube or freewheeling diode

■ 4.35V charging voltage with ±1% accuracy

■ Dual output for charging status, no battery and fault status display

■ The supply current in standby mode is 70uA

■ 2.9V trickle charge

■ Soft-start limits inrush current

■ Battery temperature monitoring function

■ Output short circuit protection function

■ Available in 8-pin SOP package

Input power supply voltage (Vcc): -0.3V~6.5V

■ BAT: -0.3V~7V

■ LX: -0.3V~7V

■ PROG: -0.3V~7V

■ NCHRG: -0.3V~7V

■ NSTDBY: -0.3V~7V

■ TS: -0.3V~7V

■ BAT short circuit duration: continuous

■ Maximum junction temperature: 145℃

■ Working environment temperature range: -40℃～85℃

■ Storage temperature range: -65℃～125℃

■ Pin temperature (soldering time 10 seconds): 260℃