1 to 3 Cells Li-Ion Battery Protection
R5437L Series
1 to 3 Cells Li-Ion Battery Protection IC for Secondary Protection
No. EA-416-210518
OUTLINE
The R5437L is...
Description
R5437L Series
1 to 3 Cells Li-Ion Battery Protection IC for Secondary Protection
No. EA-416-210518
OUTLINE
The R5437L is an overcharge protection IC for 1 to 3 serial cells Li-ion / Li-polymer rechargeable battery. This device provides the high-accuracy voltage detection function and the shutdown function can reduce the supply current to the minimum when all cell’s voltage becomes less than the shutdown detection voltage.
FEATURES
High Voltage Tolerant Process Absolute Maximum Ratings ··································· 26 V
Low Supply Current During Operation, Cell-voltage: 3.9 V, 3-Cells ············ Typ. 0.85 µA
High-accuracy Voltage Detection Overcharge Detector Threshold (VDET1n(1))················· 4.10 V to 4.65 V, in 5 mV step Overcharge Detector Threshold Accuracy ················· ± 0.02 V (Ta = 25°C) ± 0.025 V (0°C ≤ Ta ≤ 60°C) Overcharge Release Voltage (VREL1n(1))····················· VDET1n−0V to VDET1n−0.5V, in 50 mV step Overcharge Detection Delay Time ··························· 2-, 4-, or 6-sec with Delay Time Shortening Function(2) Overcharge Release Voltage Condition ···················· Voltage Release Type
COUT Output (CMOS Output, Active-high) ················ Typ. 4.7 V Shutdown Functions
Shutdown Detector Threshold ································ Typ. 3.5 V ±0.3 V Shutdown Current················································ Max.0.1µA 1 to 3 Cells Selectable Battery Protection Compact Package DFN 1814-6C ·····························...
Similar Datasheet