Power Management ICs

Battery Protection IC for 3-Serial to 5-Serial Cell Pack (Secondary Protection) S-8215A Series

The S-8215A Series is used for secondary protection of lithium-ion rechargeable batteries, and incorporates high-accuracy voltage detection circuits and delay circuits. Short-circuiting between cells makes it possible for serial connection of 3 cells to 5 cells.


High-accuracy voltage detection circuit for each cell
Overcharge detection voltage n (n = 1 to 5)
 3.60 V to 4.70 V (in 50 mV steps)
 Accuracy ±25 mV (+25°C)
 Accuracy ±30 mV (−5°C to +55°C)
Overcharge hysteresis voltage n (n = 1 to 5)
 0.0 mV to −550 mV (in 50 mV steps)
 −300 mV to −550 mV Accuracy ±20%
 −100 mV to −250 mV Accuracy ±50 mV
 0.0 mV to−50 mV  Accuracy ±25 mV
Delay times for overcharge detection can be set by an internal circuit only (external capacitors are unnecessary)
Output form is selectable
CMOS output, Nch open-drain output, Pch open-drain output
Output logic is selectable
Active "H", Active "L"
High withstand voltage
Absolute maximum rating: 28 V
Wide operating voltage range
3.6 V to 26 V
Wide operating temperature range
−40°C to +85°C
Low current consumption
 At Vcun - 1.0 V for each cell: 3.0 µA max. (+25°C)
 At 2.3 V for each cell: 1.7 µA max. (+25°C)
Lead-free, Sn 100%, halogen-free (Refer to "Product Name Structure" for details.)


  • Lithium-ion rechargeable battery packs (for secondary protection)

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.