Power Management ICs

Battery Protection IC for 2-serial-cell Pack S-8252 Series

The S-8252 Series is a protection IC for 2-serial-cell lithium-ion / lithium polymer rechargeable batteries and includes high-accuracy voltage detection circuits and delay circuits.
The S-8252 Series is suitable for protecting 2-serial-cell rechargeable lithium-ion / lithium polymer battery packs from overcharge, overdischarge, and overcurrent.


High-accuracy voltage detection function for each cell
Overcharge detection voltage n (n = 1, 2):3.55 V to 4.6 V (5 mV steps) Accuracy ±20 mV (+25°C), Accuracy ±25 mV (-10°C to +60°C)
Overcharge release voltage n (n = 1, 2):3.15 V to 4.6 V*1 Accuracy ±30 mV
Overdischarge detection voltage n (n = 1, 2):2.0 V to 3.0 V (10 mV steps) Accuracy ±50 mV
Overdischarge release voltage n (n = 1, 2):2.0 V to 3.4 V*2 Accuracy ±100 mV
Discharge overcurrent detection voltage:0.05 V to 0.4 V (10 mV steps) Accuracy ±10 mV
Load short-circuiting detection voltage:0.500 V to 0.900 V (50 mV steps) Accuracy ±100 mV
Charge overcurrent detection voltage:-0.4 V to -0.05 V (25 mV steps) Accuracy ±20 mV
Charge overcurrent detection function
Available, unavailable
Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
Accuracy ±20%
High-withstand voltage
(VM pin and CO pin: Absolute maximum rating = 28 V)
0 V battery charge
Enabled, inhibited
Power-down function
Available, unavailable
Wide operation temperature range
Ta = -40°C to +85°C
Low current consumption
During operation: 8.0 µA max. (+25°C)
During power-down: 0.1 µA max. (+25°C)
Lead-free (Sn 100%), halogen-free

*1. Overcharge release voltage = Overcharge detection voltage - Overcharge hysteresis voltage
(Overcharge hysteresis voltage n (n = 1, 2) can be selected as 0 V or
from a range of 0.10 V to 0.40 V in 50 mVsteps.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage n (n = 1, 2) can be selected as 0 V or from a range of 0.1 V to 0.7 V in 100 mVsteps.)


  • Lithium-ion rechargeable battery pack
  • Lithium polymer rechargeable battery pack

Parts List

  • U(Ux), S and G at the end of the product name of ABLIC Inc. were used to indicate different material specifications as “environmental code”,
    however, these have now been unified into “lead-free and halogen-free” and are identical in terms of environmental quality.
  • Note: Lead-free plating other than 100% Sn is applied to some limited old products, therefore, please contact our sales representatives for details.
  • These descriptions may be different from the actual product name and parameter.
    Please confirm the product name and specifications with the data sheet again.
  • The information herein is subject to change without notice.