Description

The SLM6150 is a complete constant current & constant voltage linear charger for single cell lithium-ion batteries.

Its SOP package low external component count make the SLM6150 ideally suited for portable applications. The SLM6150 is specifically designed to work within USB supply and adapter specifications.

No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The SLM6150 automatically terminates the charge cycle when the charge current drops to 1/10th of the programmed value after the final float voltage is reached.

When the input supply (Adapter or USB supply) is removed, the SLM6150 automatically enters a low current state, dropping the battery drain current to less than 2uA. The SLM6150 can be put into shutdown mode even if the power supply connected, and the supply current can be reduced to 55uA.

Other features of SLM6150 include Battery temperature monitor, under-voltage lockout, automatic recharge and two status pins to indicate charge and charge termination.

Features

• ■Programmable Charge Current Up to 1000mA
• ■No MOSFET, Sense Resistor or Blocking Diode Required
• ■Complete Linear Charge in SOP Package for Single Cell Lithium-Ion Batteries
• ■Constant-Current/Constant-Voltage Operation with Thermal Regulation
• ■Preset 4.2V Charge Voltage with ±1% Accuracy
• ■Charge Current Monitor Output
• ■Automatic Recharge
• ■Charge State Pairs of Output, No Battery and Fault Status Display
• ■C/10 Charge Termination
• ■55uA Supply Current in Shutdown
• ■2.9V Trickle Charge
• ■Soft-Start Limits Inrush Current
• ■Battery Temperature Monitoring
• ■Available in 8-Pin SOP/MSOP Package

Absolute Maximum Ratings

• ■Vcc: -0.3V~8V
• ■PROG: -0.3V~Vcc+0.3V
• ■BAT: -0.3V~7V
• ■CHRG: -0.3V~10V
• ■STDBY: -0.3V~10V
• ■TEMP: -0.3V~10V
• ■CE: -0.3V~10V
• ■BAT Short-Circuit Duration: Continuous
• ■BAT Pin Current: 1200mA
• ■PROG Pin Current: 1200uA
• ■Maximum Junction Temperature: 145℃
• ■Operating Temperature Range: -40℃ ~85℃
• ■Storage Temperature Range: -65℃~125℃
• ■Lead Temperature（ Soldering, 10 sec） 260℃

Typical Application

Datasheet

SLM6150.pdf