1-Cell Li-ion Battery Protection IC with Temperature Protection
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.
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
- 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.
Sample / Buy
Buy, Request for Samples, Request for Information Materials
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
|Temperature Protection||Temperature Protection|
|Cell Balance||Cell Balance Function|
|Cascadable||Cascade Connect Function|
|Open Wire Detection||Open Wire Detect 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".