DS2715BZ+

The DS2715BZ+ is a NiMH battery pack charge controller in 16 pin SOIC package. It is well suited for cost-sensitive charger applications where battery pack is either internal or external to the application. It has been optimized for safe and reliable charging of 1 to 10 NiMH cells in series. The internal gain block can be selected as comparator / transconductance amplifier for charge current regulation. It is configurable as a switched DC charger, linear current regulator or switch mode current source. The DS2715 pre-conditions severely depleted cells before entering full charge mode. It terminates full charge using the dT/dt technique which requires an external sensing thermistor. A user selectable charge timer allows charge rates from 0.167C to 2C. FAST-CHARGE, TOPOFF, DONE modes are included for highly reliable, safe charging of NiMH cells. Discharge mode allows it to enter a low power sleep state while cell pack is being discharged.

• Supply voltage range from 4.5V to 16.5V
• FAST-CHARGE at up to a 2C rate
• PRECHARGE and TOPOFF charge modes help cell conditioning
• Load detection allows the DS2715 to enter low power sleep mode (<lt/>10μA) while cell pack is discharged
• LED output displays charge state
• Operating temperature range from -20°C to 85°C
• Over-temperature, undertemperature, over-voltage detection prevents charging under unsafe conditions

Applications

Power Management, Portable Devices, Consumer Electronics

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party