BQ77PL157APW-4225 by Texas Instruments | APACBattery Management | Avnet ASIA
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信息

BQ77PL157APW-4225

Texas Instruments

Li-Ion/Li-Pol 4.225V 16-Pin TSSOP Tube

製造商產品編號: BQ77PL157APW-4225

替代料號: BQ77PL157APW-4225


legend 通過RoHS認證

描述

文檔

替代/替換

資料

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.

技術參數

  • 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
  • 技術屬性

    描述
    尋找類似物料
    Lead Finish
    Gold
    Product Dimensions
    5.1 x 4.5 x 1.05 mm
    MSL Level
    2
    Battery Type
    Li-Ion|Li-Pol
    Supplier Package
    TSSOP
    Operating Supply Voltage
    4.2 to 30 V
    Mounting
    Surface Mount
    Pin Count
    16
    Operating Temperature
    -40 to 110 °C
    Output Voltage
    4.225 V
    Max Processing Temp
    260

    ECCN/UNSPSC

    描述
    ECCN:
    EAR99
    計劃交貨期 B:
    8542390000"
    HTSN:
    8542390001"
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101

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