R5602 Series
4-Cell to 7-Cell Li-ion Battery Management Analog Front-End IC

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  • Description

    The R5602 is an analog front-end IC for 4-cell to 7-cell Li-ion / Li-polymer battery management. This IC provides cell voltage monitor, bidirectional current monitor based-on monitoring the voltage across an external sense resistor, two input pin for temperature monitoring by external NTC thermistors, Die temperature monitor, overcurrent protection, high-side NMOSFET control, a voltage regulator, cell balancing switches, switch for open-wire detection and I2C/SPI interface. The IC has a built-in A/D converter and an MCU can read each monitor value as a digital value.

    Key Benefits

    • High accuracy voltage monitoring and low power consumption - for saving battery life.
    • Control High-side NMOSFET - for ease of treatment and cost reduction of BOM.
    • Cell connection sequence free - for cost reduction of battery pack assembling.

  • Spec
    Consumer
    Maximum Rating 40 V
    Number of Cells 4 to 7
    Supply Current Typ. 150 µA
    Standby Current Max. 1.0 µA
    Voltage Monitor ±30 mV
    (−20°C ≤ Ta ≤ 85°C, 3 V ≤ VVCIN ≤ 4.2 V, VD ≥ 6.0 V, Cell voltages are balanced.)
    Current Monitor RSNS = 5 mΩ, Gain = 20 : ± 1
    RSNS = 5 mΩ, Gain = 10 : ± 1.4
    RSNS = 5 mΩ, Gain = 2.5 : ± 2.4
    Voltage Regulator Output Voltage Typ. 3.4 V
    Voltage Regulator Output Voltage Accuracy +0.1 V / -0.2 V (−20°C ≤ Ta ≤ 85°C)
    Voltage Regulator Output Current Min. 10 mA
    Communication I2C / SPI interface with/without CRC
    Package QFN0505-32C
    Monitoring Speed Less than 1 ms / 1 monitor (Max)
    Overcurrent Protection by Detectors Overcharge, overdischarge, and short-circuit
    Built-in switch Cell Balancing Switch, Switch for Open-wire detection
  • Technical
    Documents
    • Typical Application

      Typical Application
  • Quality &
    Packages
    • Refer to the datasheets for the details on the product.
    • The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
    • Please contact us or our distributors for unpublished reliability information.

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Functional Description

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