Power Management ICs

Battery Protection IC for 2-serial-cell PacK S-82C2B/C Series

This IC is a protection IC for lithium-ion / lithium polymer rechargeable batteries, which includes high-accuracy voltage detection circuits and delay circuits. It is suitable for protecting 2-serial-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent.
The S-82C2B Series has an input pin for charge-discharge control signal (CTL pin), allowing for charge-discharge control with an external signal. The S-82C2C Series has an input pin for power-saving signal (PS pin), allowing for reduction of current consumption by using an external signal to start the power-saving function.

Features

High-accuracy voltage detection circuit
Overcharge detection voltage n 3.500 V to 4.800 V (5 mV step) Accuracy ±20 mV
Overcharge release voltage n 3.100 V to 4.800 V*1 Accuracy ±50 mV
Overdischarge detection voltage n 2.000 V to 3.000 V (10 mV step) Accuracy ±50 mV
Overdischarge release voltage n 2.000 V to 3.400 V*2 Accuracy ±75 mV
Discharge overcurrent 1 detection voltage 3 mV to 400 mV (1 mV step) Accuracy ±3.0 mV
Discharge overcurrent 2 detection voltage 10 mV to 400 mV (1 mV step) Accuracy ±5 mV
Load short-circuiting detection voltage 20 mV to 800 mV (5 mV step) Accuracy ±10 mV
Charge overcurrent detection voltage −400 mV to −3 mV (1 mV step) Accuracy ±3.0 mV
Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
Charge-discharge control function (S-82C2B Series)
CTL pin control logic: Active “H”, active “L”
CTL pin internal resistance connection: Pull-up, pull-down
CTL pin internal resistance value: 1 MΩ to 10 MΩ (1 MΩ step)
Power-saving function (S-82C2C Series)
PS pin control logic: Active “H”, active “L”
PS pin internal resistance value: 1 MΩ to 10 MΩ (1 MΩ step)
0 V battery charge
Enabled, inhibited
Power-down function
S-82C2B Series: Available, unavailable
S-82C2C Series: Available
High-withstand voltage
VM pin and CO pin: Absolute maximum rating 28 V
Wide operation temperature range
Ta = −40°C to +85°C
Low current consumption
During operation: 3.0 μA typ., 6.0 μA max. (Ta = +25°C)
During power-down: 50 nA max. (Ta = +25°C)
During overdischarge: 1.0 μA max. (Ta = +25°C)
During power-saving (S-82C2C Series): 50 nA max. (Ta = +25°C)
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 V to 0.4 V in 50 mV step.)

*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 V to 0.7 V in 100 mV step.)

Remark n = 1, 2

Applications

  • 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.