제품 상세 정보

Number of series cells 6 Charge current (max) (A) 2 Vin (max) (V) 5.5 Cell chemistry Lead Acid Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 20 Absolute max Vin (max) (V) 7 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -20 to 70
Number of series cells 6 Charge current (max) (A) 2 Vin (max) (V) 5.5 Cell chemistry Lead Acid Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 20 Absolute max Vin (max) (V) 7 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -20 to 70
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (D) 16 59.4 mm² 9.9 x 6
  • Conforms to battery manufacturers' charge recommendations for cyclic and float charge
  • Pin-selectable charge algorithms

  • - 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
  • 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

  • - Ideal for high-efficiency switch-mode power conversion
    - Configurable for linear or gated current use
  • Direct LED control outputs display charge status and fault conditions
  • Conforms to battery manufacturers' charge recommendations for cyclic and float charge
  • Pin-selectable charge algorithms

  • - 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
  • 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

  • - Ideal for high-efficiency switch-mode power conversion
    - Configurable for linear or gated current use
  • Direct LED control outputs display charge status and fault conditions

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:

  • Maximum voltage
  • Second difference of cell voltage (2V)
  • Minimum current (in constant-voltage charging)
  • Maximum time-out (MTO)
  • After bulk charging, the bq2031 provides temperature-compensated maintenance (float) charging to maintain battery capacity.

    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:

  • Maximum voltage
  • Second difference of cell voltage (2V)
  • Minimum current (in constant-voltage charging)
  • Maximum time-out (MTO)
  • After bulk charging, the bq2031 provides temperature-compensated maintenance (float) charging to maintain battery capacity.

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    기술 자료

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    6개 모두 보기
    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

    추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

    평가 모듈(EVM)용 GUI

    SLVC024 bq24715 EVM GUI Package

    지원되는 제품 및 하드웨어

    지원되는 제품 및 하드웨어

    제품
    배터리 충전기 IC
    BQ2000 피크 전압 감지 터미네이션을 지원하는 스위치 모드 멀티 케미스트리 배터리 충전기 BQ2000T dT/dt 터미네이션을 지원하는 스위치 모드 멀티 케미스트리 배터리 충전기 BQ2002 음극 dV, PVT 및 Top-Off 시간 설정1을 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002C 음극 dV, PVT를 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002D dT/dt 터미네이션을 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002E 음극 dV, PVT 및 tMTO 설정1을 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002F 음극 dV, PVT 및 Top-Off 시간 설정2를 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002G 음극 dV, PVT 및 tMTO 설정2를 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002T dT/dt 터미네이션 및 저온 오류가 있는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2031 사용자 선택 가능한 충전 알고리즘을 지원하는 스위치 모드 납산 배터리 충전기 BQ2057C AutoCompTM, 4.2V를 지원하는 저손실 선형 1셀 리튬 이온 충전 컨트롤러 BQ24010 1셀, 1A, 선형 리튬 이온 배터리 충전기(QFN-11 패키지에서 AC 입력 및 온도 감지 지원) BQ24012 1셀, 1A, 선형 리튬 이온 배터리 충전기(QFN-12에서 FET, AC 입력 및 충전 지원) BQ24013 1셀, 1A, 선형 리튬 이온 배터리 충전기(QFN-11 패키지에서 충전 지원, Term 지원) BQ24200 MSOP-8에서 온도 감지를 지원하는 전류 제한 앱용 500mA, 4.2V 리튬 이온 충전기 BQ24201 MSOP-8에서 온도 감지를 지원하는 전류 제한 앱용 500mA, 4.1V 리튬 이온 충전기 BQ24202 MSOP-8에서 충전 상태를 지원하는 전류 제한 앱용 500mA, 4.2V 리튬 이온 충전기 BQ24203 MSOP-8에서 충전 상태를 지원하는 전류 제한 앱용 500mA, 4.1V 리튬 이온 충전기 BQ24205 전류 제한 앱용 500mA, 4.1V 리튬 이온 충전기(MSOP-8) BQ24715 N채널 MOSFET 선택기를 지원하는 SMBus 2~3셀 NVDC 벅 배터리 충전 컨트롤러
    패키지 CAD 기호, 풋프린트 및 3D 모델
    PDIP (N) 16 Ultra Librarian
    SOIC (D) 16 Ultra Librarian

    주문 및 품질

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    • 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

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