R5668 Series
1-Cell Li-ion Battery Protection IC with Temperature Protection

Download Datasheet

  • Description

    The R5668 is one-cell Li-ion / Li-polymer rechargeable battery protection IC features overcharge, overdischarge, overcurrent, and a short-circuit current protector. The R5668 further includes temperature protections, standby mode and forced standby mode. It is possible to detect the temperature by connecting a thermistor. The COUT and DOUT pins with CMOS output driver are normally High. When the R5668 detects any abnormal condition to stop charging or discharging, either the COUT or the DOUT pin becomes Low. In the abnormal temperature condition only, both of them may become Low.

  • Spec
    Operating Input Voltage 1.5 V to 5.0 V (Maximum Rating: 12 V)
    Number of Cells 1
    Supply Current Typ. 3.0 µA
    Standby Current Max. 0.04 µA
    Overcharge Detection Voltage 4.2 V to 4.6 V (1 mV step)
    Overcharge Detection Voltage Accuracy ±10 mV (0°C ≤ Ta ≤ 50°C)
    Overcharge Detection Delay Time 1024 ms, 2048 ms, 4096 ms
    Overdischarge Detection Voltage 2.0 V to 3.4 V (5 mV step)
    Overdischarge Detection Voltage Accuracy ±35 mV
    Overdischarge Detection Delay Time 16 ms
    Discharge Overcurrent Detection Voltage 0.010 V to 0.080 V (0.5 mV step)
    Discharge Overcurrent Detection Voltage Accuracy ±2 mV (0.010 V to 0.040 V)
    ±5% (0.040 V to 0.060 V)
    ±3 mV (0.060 V to 0.080 V)
    Discharge Overcurrent Detection Delay Time 16 ms, 32 ms, 128 ms, 256 ms, 512 ms, 1024 ms
    Charge Overcurrent Detection Voltage -0.080 V to -0.010 V (0.5 mV step)
    Charge Overcurrent Detection Voltage Accuracy ±3 mV (-0.080 V to -0.060 V)
    ±5% (-0.060 V to -0.040 V)
    ±2 mV (-0.040 V to -0.010 V)
    Charge Overcurrent Detection Delay Time 8 ms, 16 ms
    Short Detection Voltage 0.025 V to 0.125 V (1 mV step)
    Short Detection Voltage Accuracy ±3 mV (0.025 V to 0.100 V)
    ±5 mV (0.100 V to 0.125 V)
    Short Detection Delay Time 280 µs
    Conditions for Overdischarge Restoration Auto Release Type / Latch Type
    Package WLCSP-8-P14
    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.

Download Datasheet

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 Temperature Protection,Short-circuit Current Detection