BQ24023DRCR

The BQ24023DRCR from Texas Instruments is a flexible, highly integrated linear charge and system power management IC designed for single-cell Lithium-Ion or Lithium-Polymer battery applications. This device features dual input capability, allowing it to charge and power systems from either a USB port or an AC adapter, with autonomous power-source selection.

Key electrical specifications include a minimum input voltage of 4.5V and a maximum of 6.5V, with an absolute maximum input voltage of 7V. The battery charge voltage is precisely regulated at 4.2V. It supports a maximum charge current of 500mA, with programmable features for current and timer control. The device operates within a temperature range of -40°C to 85°C.

Designed for space-limited portable applications, the BQ24023DRCR is available in a compact 10-VSON (3x3 mm) package. It includes features such as battery temperature monitoring via a thermistor for hot/cold profile charging, precharge conditioning with a safety timer, and power good indication for AC adapter presence. An optional battery temperature monitoring feature is available before and during charging, along with an automatic sleep mode for low-power consumption.

This charger IC is ideal for applications such as PDAs, MP3 players, digital cameras, internet appliances, and smartphones where efficient and reliable battery charging is crucial.