Features

(1) High-accuracy voltage detection circuit
• Overcharge detection voltage 3.9 to 4.5 V (5 mV steps) Accuracy ±25 mV (+25°C)
Accuracy ±30 mV (−5 to +55°C)
• Overcharge release voltage 3.8 to 4.43 V*1 Accuracy ±50 mV
• Overdischarge detection voltage 2.0 to 3.0 V (10 mV steps) Accuracy ±50 mV
• Overdischarge release voltage 2.0 to 3.4 V*2 Accuracy ±100 mV
• Discharge overcurrent detection voltage 0.05 to 0.30 V (10 mV steps) Accuracy ±15 mV
• Load short-circuiting detection voltage 0.5 V (fixed) Accuracy ±200mV
• Charge overcurrent detection voltage −0.1 V (fixed) Accuracy ±30 mV
(2) Detection delay times are generated by an internal circuit (external capacitors are unnecessary).
Accuracy ±20%
(3) High-withstanding-voltage device is used for charger connection pins (VM pin and CO pin : Absolute maximum rating = 28 V)
(4) 0 V battery charge function available / unavailable are selectable.
(5) Power-down function available / unavailable are selectable.
(6) Wide operating temperature range −40 to +85°C
(7) Low current consumption
• Operation mode 3.0 µA typ., 5.5 µA max. (+25°C)
• Power-down mode 0.2 µA max. (+25°C)
(8) Small package: SOT-23-5, SNT-6A
(9) Lead-free, Sn 100%, halogen-free

*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage
(Overcharge hysteresis voltage can be selected as 0 V or from a range of 0.1 to 0.4 V in 50 mV steps.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage can be selected as 0 V or from a range of 0.1 to 0.7 V in 100 mV steps.)

Applications

• Lithium-ion rechargeable battery packs
• Lithium-polymer rechargeable battery packs