홈 배터리 관리 IC 배터리 보호기
홈
배터리 관리 IC
배터리 보호기

BQ77PL157A4225

활성

3~6 직렬 셀 리튬 이온/폴리머 배터리용 전압 보호

지금 주문
데이터시트

BQ77PL157A4225

활성
데이터시트 지금 주문

제품 상세 정보

Function Protection Number of series cells (min) 3, 4, 5, 6 Number of series cells (max) 4, 5, 6 Features FET drive, Overvoltage, Stackable Operating current (typ) (µA) 2 Rating Catalog Vin (max) (V) 30 Overvoltage protection 4.225 Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 4.225 Battery overvoltage protection (max) (V) 4.225
Function Protection Number of series cells (min) 3, 4, 5, 6 Number of series cells (max) 4, 5, 6 Features FET drive, Overvoltage, Stackable Operating current (typ) (µA) 2 Rating Catalog Vin (max) (V) 30 Overvoltage protection 4.225 Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 4.225 Battery overvoltage protection (max) (V) 4.225
TSSOP (PW) 16 32 mm² 5 x 6.4
  • Single IC Li-Ion Protection for 3-Series to 6-Series Cells
  • Stackable to Protect up to 18-Series Cells
  • Programmable Detection Time Delay
  • Low Power Consumption
    • Typical 2-µA to 2.5-µA Normal Mode
  • Fixed 4.225 V Overvoltage Threshold
  • Highly Accurate: ±20-mV MAX, TA = 0°C to 50°C
  • Output Activation for Low Side FET
    (Contact TI for Alternate Output Options: High/Low-side Fuse or FET)
  • Protected Output, Power, and Ground Pins for Added Safety and Reliability
  • Permanent or Recoverable Fault Options
  • 16-pin Small Outline Package
  • APPLICATIONS
    • Primary or Secondary Level Voltage Protection for Li-Ion Battery Packs for Use in:
      • Power Tools
      • UPS Systems
      • E-Bikes, Scooters, and Small Mobility Vehicles
      • Medical Devices, Test Equipment, and Industrial Products
    •
  • Single IC Li-Ion Protection for 3-Series to 6-Series Cells
  • Stackable to Protect up to 18-Series Cells
  • Programmable Detection Time Delay
  • Low Power Consumption
    • Typical 2-µA to 2.5-µA Normal Mode
  • Fixed 4.225 V Overvoltage Threshold
  • Highly Accurate: ±20-mV MAX, TA = 0°C to 50°C
  • Output Activation for Low Side FET
    (Contact TI for Alternate Output Options: High/Low-side Fuse or FET)
  • Protected Output, Power, and Ground Pins for Added Safety and Reliability
  • Permanent or Recoverable Fault Options
  • 16-pin Small Outline Package
  • APPLICATIONS
    • Primary or Secondary Level Voltage Protection for Li-Ion Battery Packs for Use in:
      • Power Tools
      • UPS Systems
      • E-Bikes, Scooters, and Small Mobility Vehicles
      • Medical Devices, Test Equipment, and Industrial Products
    •

    The bq77PL157 is a stackable overvoltage protection device for 3, 4, 5 or 6 series cell Li-Ion battery packs. This device incorporates a precise and accurate overvoltage detection circuit with preconfigured threshold limits. Additional features include the ability to stack multiple parts to monitor up to 18 series cells.

    FUNCTION

    Each series cell in a Li-Ion battery pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq77PL157 starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes state and the LVO pin becomes active.

    If multiple bq77PL157 devices are stacked, the LVIN pin of the next-lower device receives the LVO pin from the above device and similarly starts a shortened delay timer before activating its OUT pin. (No additional isolation or level-shift circuitry is required.) The lowest bq77PL157 in the string is used to activate a power MOSFET located in the low side of the power path.

    The bq77PL157 is a stackable overvoltage protection device for 3, 4, 5 or 6 series cell Li-Ion battery packs. This device incorporates a precise and accurate overvoltage detection circuit with preconfigured threshold limits. Additional features include the ability to stack multiple parts to monitor up to 18 series cells.

    FUNCTION

    Each series cell in a Li-Ion battery pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq77PL157 starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes state and the LVO pin becomes active.

    If multiple bq77PL157 devices are stacked, the LVIN pin of the next-lower device receives the LVO pin from the above device and similarly starts a shortened delay timer before activating its OUT pin. (No additional isolation or level-shift circuitry is required.) The lowest bq77PL157 in the string is used to activate a power MOSFET located in the low side of the power path.
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    관심 가지실만한 유사 제품

    open-in-new 대안 비교
    다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
    BQ7718 활성 내부 지연 타이머 장착 2-5S 과전압 보호기 제품군 3-5S overvotlage protector with fixed OVP threshold and low power consumption

    기술 문서

    star =TI에서 선정한 이 제품의 인기 문서
    검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
    모두 보기1
    유형 직함 날짜
    * Data sheet Stackable Secondary Voltage Protector for 3 to 6 Series Li Cells. datasheet (Rev. B) 2012/04/13

    설계 및 개발

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

    패키지 핀 다운로드
    TSSOP (PW) 16 옵션 보기
    TI의 평가 항목에 대한 표준 약관이 적용됩니다.

    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

    지원 및 교육

    TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

    포럼 주제 모두 보기(영문)

    콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

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