Description

The SLM6803 is a three-cell Li-Ion battery synchronous boost current circuit for a 5V adapter.It is a fully integrated power MOS device and a synchronous boost converter with a 650KHz switching frequency, so it has a charging efficiency of over 92% and a maximum charging current of 1.0A.

The SLM6803 includes a complete charge termination circuit, automatic recharge, and a preset charge voltage of 12.6V with an accuracy of ±1%. It integrates output short-circuit protection, chip and battery temperature protection.

The SLM6803 adapts the current supply capability of the adapter to ensure that the input adapter is not overloaded, making it suitable for a wide range of DC devices as well as standard USB charging devices.

The SLM6803 integrates a 20V power MOSFET. It can withstand voltages up to 20V and integrates under-voltage and over-voltage protection for high reliability without the need for additional surge or over-voltage protection.

Features

• ■Up to 20V Input Voltage Protection
• ■Fully Integrated Power MOSFET
• ■Up to 92% Output Efficiency
• ■Maximum 1.0A Adjustable Output Current
• ■Input Current Automatic Identification,Adapter Adaptation
• ■Chip High Temperature Automatic Current Limiting and Over Temperature Shutdown Protection
• ■No External Power MOS
• ■Accuracy of 12.6V±1% Charging Voltage
• ■Charging Status Dual Lamp Indication, No Battery or Fault Status Indication
• ■Three Cell 8.4V Trickle Charge Voltage Switching
• ■Integrated Under-voltage and Over-voltage Protection
• ■Battery Temperature Monitoring
• ■Output Short Circuit Protection
• ■Small QFN4x4-16L Package

Absolute Maximum Ratings

• ■vin: -0.3V~22V
• ■BAT: -0.3V~22V
• ■TM： -0.3V~7V
• ■others： -0.3V~vin+0.3V
• ■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

SLM6803.pdf