Description

The SLM6305 is a 2.5A lithium ion battery charger with wide voltage input. It is a synchronous buck converter with a fixed frequency of 550kHz. It has a charging efficiency of more than 90% and a very small calorific value.

The SLM6305 integrates 28V high-voltage devices, which can effectively prevent chip is damaged by surge voltage or incorrect connection of high-voltage adapter, and has high security.

The SLM6305 includes a complete charging termination circuit, automatic recharging and a 4.2V preset charging voltage with an accuracy of ±1%. The SLM6305 has many functions, such as anti back filling protection, output short circuit protection, chip and battery temperature protection.

Features

• ■Maximum working voltage is 26.0V and the withstand voltage is 28V
• ■Fixed switching frequency of 550kHz
• ■High output efficiency of more than 90%
• ■Maximum adjustable output current of 2.5A
• ■Automatic identification of input current and adaptive adapter
• ■There is no need to prevent reverse current diode
• ■No external power MOS transistor or freewheeling diode is required
• ■Accuracy of 4.2V charging voltage with accuracy of ± 1%
• ■It can withstand 28V high voltage charging state dual indication output
• ■Shutdown current is only 20uA
• ■2.9V trickle charging
• ■Soft start limits surge current
• ■Battery temperature monitoring function
• ■Output short circuit protection function
• ■DFN3x3-10L package

Absolute Maximum Ratings

• ■Vcc: -0.3V~28V
• ■BAT: -0.3V~14V
• ■LX： -0.3V~14V
• ■VS： -0.3V~14V
• ■VGC： VIN-7V~VIN+0.3V
• ■Others： -0.3V~7V
• ■BAT Short-Circuit Duration: Continuous
• ■Maximum Junction Temperature: 145℃
• ■Operating Temperature Range: -40℃ ~85℃
• ■Storage Temperature Range: -65℃~125℃
• ■Lead Temperature (Soldering, 10 sec) 260℃

Typical Application

Datasheet

SLM6305.pdf