평가 모듈(EVM)용 GUI
BQ2031
- Conforms to battery manufacturers' charge recommendations for cyclic and float charge
- Pin-selectable charge algorithms
- Pin-selectable charge termination by maximum voltage,
2V, minimum current, and maximum time - Pre-charge qualification detects shorted, opened, or damaged cells and conditions battery
- Charging continuously qualified by temperature and voltage limits
- Internal temperature-compensated voltage reference
- Pulse-width modulation control
- Direct LED control outputs display charge status and fault conditions
- Two-Step Voltage with temperature-compensated constant-voltage maintenance
- Two-Step Current with constant-rate pulsed current maintenance
- Pulsed Current: hysteretic, on-demand pulsed current
- Ideal for high-efficiency switch-mode power conversion
- Configurable for linear or gated current use
The bq2031 Lead-Acid Fast Charge IC is designed to optimize charging of lead-acid chemistry batteries. A flexible pulse-width modulation regulator allows the bq2031 to control constant-voltage, constant-current, or pulsed-current charging. The regulator frequency is set by an external capacitor for design flexibility. The switch-mode design keeps power dissipation to a minimum for high charge current applications.
A charge cycle begins when power is applied or the battery is replaced. For safety, charging is inhibited until the battery voltage is within configured limits. If the battery voltage is less than the low-voltage threshold, the bq2031 provides trickle-currentcharging until the voltage rises into the allowed range or an internal timer runs out and places the bq2031 in a Fault condition. This procedure prevents high-current charging of cells that are possibly damaged or reversed. Charging is inhibited anytime the temperature of the battery is outside the configurable, allowed range. All voltage thresholds are temperature-compensated.
The bq2031 terminates fast (bulk) charging based on the following:
2V)기술 문서
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모두 보기6 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Lead-Acid Fast-Charge IC datasheet | 1999/09/05 | |
| Application note | Simple MPPT based Lead acid charger using BQ2031 (Rev. A) | 2017/08/08 | ||
| Analog Design Journal | 4Q 2011 Issue Analog Applications Journal | 2011/11/09 | ||
| Analog Design Journal | Solar charging solution provides narrow-voltage DC/DC system bus for multicell | 2011/11/09 | ||
| User guide | DV2031S2 Lead-Acid Charger Development System Control of On-Board p-FET (Rev. B) | 2007/03/16 | ||
| Application note | U-510 Using the bq2031 to Charge Lead-Acid Batteries | 1999/09/05 |
설계 및 개발
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지원 소프트웨어
TEMPSENSE-SW — 온도 감지 디자이너 소프트웨어
The TempSense Designer software allows the user to easily design temperature sensing circuits for many of the Texas Instruments battery charger devices. A full listing of the supported devices is included under the "Support" menu in the program. The user can use the thermisters included in the (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| PDIP (N) | 16 | 옵션 보기 |
| SOIC (D) | 16 | 옵션 보기 |
주문 및 품질
포함된 정보:
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
포함된 정보:
- 팹 위치
- 조립 위치