R5668 Series

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

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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

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

Functional Description

Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
R5668Zxxxxx-E2-T		WLCSP-8-P14	See datasheet	R5668Z

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.

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