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

BQ77PL157A4225

활성
지금 주문하기
데이터 시트

BQ77PL157A4225

활성
데이터 시트 지금 주문하기

제품 상세 정보

Rating Catalog Number of series cells (max) 4, 5, 6 Number of series cells (min) 3, 4, 5, 6 Features FET drive, Overvoltage, Stackable Function Protection Operating current (typ) (µA) 2 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
Rating Catalog Number of series cells (max) 4, 5, 6 Number of series cells (min) 3, 4, 5, 6 Features FET drive, Overvoltage, Stackable Function Protection Operating current (typ) (µA) 2 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 mm × 6.4 mm)
  • 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 자료

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    1개 모두 보기
    상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
    * 데이터 시트 Stackable Secondary Voltage Protector for 3 to 6 Series Li Cells. datasheet (Rev. B) 2012. 4. 13

    설계 및 개발

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