CW1072 is 6~7 cells 2nd protection IC which provides voltage, current, open wire and temperature protections.

Description

• Overcharge protection

     • Threshold 3.750V, and 4.175V ~4.450V,   25mV steps,  ±25mV accuracy

• Over discharge protection

      • Threshold from 2.100V to 3.000V,   100mV steps,   ±30mV accuracy

• Flexible temperature protection threshold (Set up by external resistor)

      • Charging over&under temperature protection

      • Discharging over temperature protection

      • Discharging under temperature protection(optional)

• SEL pin to choose 6 or 7 series battery

• Open wire detection

• PWM control discharge MOSFET

• Ultra low power dissipation

      • Normal working 15μA  (25°C)

      • Sleep mode 5μA   (25°C)

• Package type: SSOP16

Application Field

• Power tools

• E-bike

• Vacuum cleaner

• Other Lithium-ion or Lithium polymer battery packs

Application Circuits