R5486 Series
1-Cell Li-ion Battery Protection IC with RSENSE pin

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  • Description

    The R5486 is an overcharge protection IC for Lithium-ion (Li+)/Lithium polymer secondary battery. This device can detect over-charge, over-discharge, excess discharge and excess charge current of one-cell Li-ion (Li+)/Li-ion polymer battery. The external resistor added to the RSENSE pin can enhance a high precision overcurrent detection. The excess discharge current detection has two stages of detections to ensure the detection accuracy. The current consumption after the over-discharge detection is suppressed by stopping the internal circuits.

  • Spec
    Operating Input Voltage 1.5 V to 5.0 V (Maximum Rating: 30 V)
    Number of Cells 1
    Supply Current Typ. 4.0 µA
    Standby Current Max. 0.1 µA
    Overcharge Detection Voltage 4.1 V to 4.6 V (0.005 V Step)
    Overcharge Detection Voltage Accuracy ± 20 mV (VDET1 ≤ 4.5 V), ±25 mV (4.5 V < VDET1)
    Overcharge Detection Delay Time 1.0 s
    Overdischarge Detection Voltage 2.1 V to 3.0 V (0.005 V Step)
    Overdischarge Detection Voltage Accuracy ±35 mV
    Overdischarge Detection Delay Time 20 ms
    Discharge Overcurrent Detection Voltage VDET3-1:
    R5486KxxxCG: 0.015 V to 0.046 V (0.001 V Step)
    R5486KxxxCM: disable
    R5486KxxxCG: 0.030 V to 0.080 V (0.001 V Step)
    R5486KxxxCM: 0.025 V to 0.080 V (0.001 V Step)
    Discharge Overcurrent Detection Voltage Accuracy ±8% (VDET3-1/3-2 ≥ 0.038 V), ±3.1 mV (VDET3-1/3-2 < 0.038 V)
    Discharge Overcurrent Detection Delay Time VDET3-1: 3 s, 4 s, 5 s
    VDET3-2: 12 ms
    Charge Overcurrent Detection Voltage −0.060 V to −0.015 V (0.001 V Step)
    Charge Overcurrent Detection Voltage Accuracy ±15% (VDET4 ≤ −0.02 V)
    ±3 mV (VDET4 > −0.02 V)
    Charge Overcurrent Detection Delay Time 16 ms
    Short Detection Voltage 0.15 V to 0.30 V (0.01 V Step)
    Short Detection Voltage Accuracy ±45 mV
    Short Detection Delay Time 250 µs
    Conditions for Overcharge Restoration Latch
    Conditions for Overdischarge Restoration Latch
    Package DFN(PL)1414-6
    0 V Charge Prohibited
    Output Delay Time Shorting At COUT is “H”, if V− level is set at −2.0 V, the output Delay time of detect the over-charge and over-discharge can be reduced. (Delay Time for over-charge becomes about 1/100 of normal state.)

    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 Short-circuit Current Detection,Delay Time Shortening