R5611 Series
1-Cell Li-ion Battery Protection IC with High-accuracy Overcurrent Detection, Reset Signal

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  • Description

    The R5611 is a one-cell Li- ion / polymer battery protection IC provides an overcurrent detection with using an external resistor. An external FET can be switched ON / OFF by the reset signal of RST. The discharge overcurrent can be detected with high-accuracy of ±3.0 mV (-20°C ≤ Ta ≤ 60°C).

  • Spec
    Operating Input Voltage 1.5 V to 5.0 V (Absolute Maximum Rating 12 V)
    Number of Cells 1
    Supply Current Typ. 3.0 µA
    Max. 6 µA
    Standby Current Max. 0.5 µA
    Overcharge Detection Voltage 4.430 V to 4.495 V (0.005 V step)
    Overcharge Detection Voltage Accuracy ±20 mV
    Overcharge Detection Delay Time 1.0 s
    Overcharge Restoration Voltage 4.030 V to 4.495 V (0.005 V step)
    Overdischarge Detection Voltage 2.1 V to 3.0 V (0.050 V step)
    Overdischarge Detection Voltage Accuracy ±55 mV
    Overdischarge Detection Delay Time 64 ms
    Discharge Overcurrent Detection Voltage 0.015 V to 0.025 V (0.001 V step)
    Discharge Overcurrent Detection Voltage Accuracy ±3 mV
    Discharge Overcurrent Detection Delay Time 4096 ms
    Charge Overcurrent Detection Voltage -0.024 V to -0.017 V (0.001 V step)
    Charge Overcurrent Detection Voltage Accuracy ±3 mV
    Charge Overcurrent Detection Delay Time 17 ms
    Short Detection Voltage 0.055 V to 0.200 V (0.010 V step)
    Short Detection Voltage Accuracy ±20 mV
    Short Detection Delay Time 280 µs
    Conditions for Overcharge Restoration Voltage Release
    Conditions for Overdischarge Restoration Voltage Release
    Package DFN1616-8
    0 V Charge Available
    Reset Detection/Release Voltage 1.2 V ±0.3 V
    Reset Detection Delay Time 50 ms

    Protections / Functions

    Temperature Protection Reset Alarm Cell Balance Cascadable Open Wire Detection Wakeup Short-circuit Current Detection Delay Time Shortening
  • Technical
    • Typical Application

      Typical Application

  • 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

Temperature Protection Temperature Protection
Reset Reset Function
Alarm Alarm Function
Cell Balance Cell Balance Function
Cascadable Cascade Connect Function
Open Wire Detection Open Wire Detect Function
Wakeup Wakeup Function
Short-circuit Current Detection Short-circuit Current Protection
Delay Time Shorting Output Delay Time Short Function

For more details, please refer to "Protecting Li-ion Batteries: Functions and Advantages".

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Category:Lithium-ion Battery Protection ICs

Features Battery Protection
Cell 1
Functions Reset,Short-circuit Current Detection,Delay Time Shortening