R5438L

R5438L Series 1 to 3 Cells Li-Ion Battery Protection IC for Secondary Protection No. EA-417-210518 OUTLINE The R5438L 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 ··························· 1-, 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 DFN1814-6C ··························...