Features

• Internal high accuracy voltage detection circuit
  Overcharge detection voltage: 3.9V to 4.4V(applicable in 5mV step), Accuracy: ±25mV (+25°C) and ±30mV (-5°C to +55°)
  Overcharge hysteresis voltage: 0.0V to 0.4V, Accuracy: ±25mV
  Overdischarge detection voltage: 2.0V to 3.0V(10mV step), Accuracy: ±50mV
  Overdischarge hysteresis voltage: 0.0V to 0.7V, Accuracy: ±50mV
  Overcurrent 1 detection voltage: 0.05V to 0.3V (10mV step), Accuracy: ±15mV
  Overcurrent 2 detection voltage: 0.5V(fixed), Accuracy: ±100mV
  
• High voltage device is used for charger connection pins
  VM and CO pins: absolute maximum rating = 28V
  
• Delay times(overcharge: tCU, overdischarge: tDL, overcurrent 1: tlOV1, overcurrent 2: tlOV2) are generated by an internal circuit. No external capacitor is necessary. Accuracy: ±20%
  
• Three-step overcurrent detection circuit is included. (overcurrent 1, overcurrent 2, and load short-circuiting)
  
• 0 V battery charge function "available" / "unavailable" are selectable.
  
• Charger detection function and abnormal charge current detection function.
  The overdischarge hysteresis is released by detecting negative voltage at the VM pin (-0.7V typ.).
  (Charger detection function)
  When the output voltage of the DO pin is high and the voltage at the VM pin is equal to or lower than the charger detection voltage (-0.7V typ.), the output voltage of the CO pin goes low. (Abnormal charge current detection function)
  
• Low current consumption
  
  Operation: 3.5 µA typ., 7.0 µA max.
  
  Power-down: 0.1 µA max.
  

  Wide operating temperature range: -40°C to +85°C
  

  Small package: SOT-23-6(6-pin)
  

  Lead-free products
  

Applications

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

Standard Circuit