R5480 Series

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

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Description

The R5480 is a protection IC for over-charge of rechargeable Lithium-ion (Li+)/Lithium polymer battery. The R5480 can detect over-charge, over-discharge, excess-discharge current, and excess-charge current of onecell Lithium-ion (Li+)/Lithium polymer battery. The external resistor of RSENSE pin allows a high-accuracy detection for excess current. The supply current after detecting over-discharge is suppressed as much as possible by stopping the internal circuit.

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 4.7 V (0.005 V Step)
Overcharge Detection Voltage Accuracy	±20 mV (≤ 4.5 V) / ±25 mV (> 4.5 V)
Overcharge Detection Delay Time	1.0 s
Overdischarge Detection Voltage	2.1 V to 3.0 V (0.050 V Step)
Overdischarge Detection Voltage Accuracy	±35 mV
Overdischarge Detection Delay Time	20 ms, 132 ms
Discharge Overcurrent Detection Voltage	0.020 V to 0.050 V (0.001 V Step)
Discharge Overcurrent Detection Voltage Accuracy	±15% (≥ 30 mV) / ±4.5 mV (< 30 mV)
Discharge Overcurrent Detection Delay Time	12 ms
Charge Overcurrent Detection Voltage	-0.057 V to -0.020 V (0.001 V Step)
Charge Overcurrent Detection Voltage Accuracy	±15%
Charge Overcurrent Detection Delay Time	16 ms, 8 ms
Short Detection Voltage	0.14 V, 0.18 V, 0.25 V, 0.50 V
Short Detection Delay Time	250 µs
Conditions for Overcharge Restoration	Latch
Conditions for Overdischarge Restoration	Latch
Package	DFN(PL)1414-6
Output Delay Time Shortening	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).
0 V Charge	Prohibited

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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
R5480Kxxxxx-TR		DFN(PL)1414-6	See datasheet	R5480K

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