Description
The DS2711 and DS2712 are ideal for in-system or stand-alone charging of 1 or 2 AA or AAA NiMH “loose” cells.
Temperature, voltage, and charge time are monitored to provide proper fast-charging control algorithms for nickel metal hydride (NiMH) batteries.
Features
- Charge 1 or 2 NiMH Cells.
- Detect and Avoid Charging Alkaline Cells.
- Precharge Deeply Depleted Cells.
- Fast Charge NiMH with -∆V Termination
Sensitivity of 2mV (typ).
- Monitor Voltage, Temperature, and Time for
Safety and Secondary Termination.
- Regulate Charge Current:
Linear Control (DS2711)
Switch-Mode Control (DS2712).
- Drive pMOS or pnp-Type Pass Element or
Switch, or an Optocoupler.
- Compatible with Popular Optocouplers and
Integrated Primary-Side PWM Con.
DS2712 Datasheet
