bq2002d/t fast-charge ic is a low-cost cmos battery-charge controller able to provide reliable charge termination for both nicd and nimh battery applications.
The bq2002D/T ICs are low‑cost CMOS battery‑charge controllers for NiCd and NiMH cells. They provide fast‑charge termination based on temperature rise, maximum voltage, maximum temperature, or a preset time limit, and include optional top‑off and pulse‑trickle modes for improved charge accuracy.
The document details pin assignments, functional block diagrams, timing specifications, absolute maximum ratings, recommended operating conditions, and ordering information for both the 8‑pin DIP and narrow‑SOIC packages.
| Supply voltage (VCC) | 5.0 V |
|---|---|
| Operating ambient temperature | 0 °C to +70 °C |
| Storage temperature range | -40 °C to +85 °C |
| Standby current | 1 µA |
Fast‑charge is terminated by any of four conditions: rate of temperature rise, maximum voltage, maximum temperature, or maximum time.
When high, the INH pin suspends fast‑charge, top‑off, and the internal charge timer; when low, normal operation resumes.
The device is offered in an 8‑pin plastic DIP and an 8‑pin narrow SOIC package.