MAX846AEEE+

The MAX846AEEE+ is a cost-saving, multichemistry battery-charger in 16 pin QSOP package. This integrated system allows different battery chemistries (Li-Ion, NiMH or NiCd cells) to be charged using one circuit.MAX846A is a stand-alone, current-limited float voltage source that charges Li-Ion cells. It can also be paired up with a low-cost microcontroller (µC) to build a universal charger capable of charging Li-Ion, NiMH and NiCd cells. An internal 0.5%-accurate reference allows safe charging of Li-Ion cells that require tight voltage accuracy. It has a built-in 1%, 3.3V, 20mA linear regulator capable of powering the µC and providing a reference for the µC's analogue to digital converters. Typical applications include battery packs and hand held instruments.

• Independent voltage and current loops
• ±0.5% internal reference for Li-ion cells
• Built-in µc reset
• Controls low cost external pnp transistor or P-channel mosfet
• Charging current-monitor output
• Less than 1µA battery drain when off
• Operating temperature range from -40°C to 85°C

Applications

Power Management, Portable Devices

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

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