R5601 Series
3-Cell to 5-Cell Li-ion Battery Management Analog Front-End IC

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  • Description

    The R5601 is a battery management IC designed for use with a microcontroller and features and analog front-end with overcurrent protection for multi-cell Li-ion/ Li-polymer battery packs. The R5601 supports battery packs consisting of up to 5 cells in series. The R5601 provides a cell selection switch, a decoder that selects the cell to be monitored based on input signals from external devices, an amplifier that outputs the monitored battery voltage, an additional amplifier that monitors charge and discharge currents based on the voltage at both ends of external resistors and then converts the current values to voltage and outputs the voltage values, a low-current voltage regulator that provides voltage to the MCU, a thermal shutdown circuit, an alert output pin that notifies external devices of any errors, and various logic circuits.

  • Spec
    Maximum Rating 32 V
    Number of Cells 3 to 5
    Supply Current Normal Mode: Typ. 36 µA
    Low Consumption Mode: Typ. 6.5 µA (Only when VR and wake-up function are operating)
    Standby Current Max. 2.0 µA
    Voltage Monitor Gain: 0.6, Input-referred Voltage Error: ±9 mV (Output-referred Voltage Error: ±5.4 mV)
    Current Monitor R5601xxxxAA Gain: 10 ±1.0%, 40 ±2.0%
    R5601xxxxAC Gain: 5 ±0.8%, 10 ±1.0%
    External Reference Voltage Output 3.0000 V ±3.5 mV
    Temperature Characteristics: ±30 ppm/°C (0°C ≤ Ta ≤ 50°C, Ta ≈ Tj)
    Voltage Regulator Output Voltage 3.3 V, Output Current Limit: Min. 30 mA
    Voltage Regulator Output Voltage Accuracy 1.5% (−20°C ≤ Ta ≤ 60°C)
    Communication Using an I2C interface allows to control the IC with MCU
    Package TSSOP-16,QFN0303-20-P28
    Thermal Shutdown can be enabled or disabled by using I2C interface
    Built-in FET Swaitch FET Switch can be set with MCU using I2C interface
    Alert Output provides a notification to MCU when detecting an event
  • Technical
    • Application Information

      Application Information

  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

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Functional Description

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