BQ2002D是TI公司的一款电池充电器IC产品，BQ2002D是具有 dT/dt 终端的镍镉电池/镍氢电池闸控充电管理 IC，本页介绍了BQ2002D的产品说明、应用、特性等，并给出了与BQ2002D相关的TI元器件型号供参考。
BQ2002D - 具有 dT/dt 终端的镍镉电池/镍氢电池闸控充电管理 IC - 电池充电器IC - 电池管理产品 - TI公司（Texas Instruments，德州仪器）
The bq2002D/T Fast-Charge IC are low-cost CMOS battery-charge controllers able to provide reliable charge termination for both NiCd and NiMH battery applications. Controlling a current-limited or constant-current supply allows the bq2002D/T to be the basis for a cost-effective stand-alone or system-integrated charger. The bq2002D/T integrates fast charge with optional top-off and pulsed-trickle control in a single IC for charging one or more NiCd or NiMH battery cells.
Fast charge is initiated on application of the charging supply or battery replacement. For safety, fast charge is inhibited if the battery temperature and voltage are outside configured limits.
Fast charge is terminated by any of the following:
Rate of temperature rise Maximum voltage Maximum temperature Maximum timeAfter fast charge, the bq2002T optionally tops-off and pulse-trickles the battery per the pre-configured limits. Fast charge may be inhibited using the INH pin. The bq2002D/T may be placed in low-standby-power mode to reduce system power consumption.
- Fast charge of nickel cadmium or nickel-metal hydride batteries
- Direct LED output displays charge status
- Fast-charge termination by rate of rise of temperature, maximum voltage, maximum temperature, and maximum time
- Internal band-gap voltage reference
- Optional top-off charge (bq2002T only)
- Selectable pulse-trickle charge rates (bq2002T only)
- Low-power mode
- 8-pin 300-mil DIP or 150-mil SOIC
