R5612 Series
1-cell Li-ion Battery Protection IC with High-accuracy Overcurrent Detection

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  • Description

    The R5612 Series is a one-cell Li- ion / polymer battery protection IC providing overcharge, overdischarge and charge / discharge overcurrent detections. Major features of this device include charge / discharge overcurrent detectors with high-accuracy of ±1.0 mV.

    Key Benefits

    • Lower-resistance of Sense Resistor by Overcurrent Detector with Lower-voltage and High-accuracy: Achieving Heat Reduction on Board
    • Low Consumption Current and Low Standby Current: Achieving Longer Driving Time with A Battery of Small Capacity

  • Spec
    Operating Input Voltage 1.5 V to 5.0 V (Maximum Rating: 12 V)
    Number of Cells 1
    Supply Current Typ. 2.0 µA
    Typ. 2.5 µA (Only when selected 0 V Battery Charging “Inhibition” and Discharge Overcurrent Detection with Two-level)
    Standby Current Max. 0.04 µA (VDET2: Latch type)
    Max. 0.2 µA (VDET2: Auto Release type)
    Overcharge Detection Voltage 4.2 V to 4.7 V (5 mV Step)
    Overcharge Detection Voltage Accuracy ± 20 mV
    Overcharge Detection Delay Time 1.024 s
    Overdischarge Detection Voltage 2.1 V to 3.2 V (50 mV Step)
    Overdischarge Detection Voltage Accuracy ±35 mV
    Overdischarge Detection Delay Time 20 ms, 64 ms
    Discharge Overcurrent Detection Voltage VDET3-1: 0.0070 V to 0.0330 V (0.5 mV Step)
    VDET3-2: 0.011 V to 0.060 V (0.5 mV Step)
    Discharge Overcurrent Detection Voltage Accuracy VDET3-1: ±1 mV
    VDET3-2: ±2 mV
    Discharge Overcurrent Detection Delay Time VDET3-1: 12 ms, 128 ms, 256 ms, 512 ms, 3.5 s, 4 s
    VDET3-2: 16 ms
    Charge Overcurrent Detection Voltage -0.0300 V to -0.0070 V (0.5 mV Step)
    Charge Overcurrent Detection Voltage Accuracy ±1 mV
    Charge Overcurrent Detection Delay Time 17 ms, 64 ms
    Short Detection Voltage VSHORT1: 0.030 V to 0.200 V (5 mV Step)
    Short Detection Voltage Accuracy ±4 mV (0.030 V ≤ VSHORT1 ≤ 0.120 V),
    ±5 mV (0.120 V < VSHORT1 ≤ 0.200 V)
    Short Detection Delay Time 280 µs
    Conditions for Overcharge Restoration Auto Release / Latch
    Conditions for Overdischarge Restoration Auto Release / Latch
    Package DFN1814-6C
    0 V Battery Charging Permission / Inhibition

    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".

Search for similar products under conditions below.

Category:Lithium-ion Battery Protection ICs

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