The S-82A1A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries and includes high-accuracy voltage detection circuits and delay circuits. It is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent.
By using an external overcurrent detection resistor, the S-82A1A Series realizes high-accuracy overcurrent protection with less effect from temperature change.

Features

High-accuracy voltage detection circuit: Overcharge detection voltage 3.5 V to 4.6 V (5 mV step) Accuracy ±20 mV; Overcharge release voltage 3.1 V to 4.6 V^*1 Accuracy ±50 mV; Overdischarge detection voltage 2.0 V to 3.0 V (10 mV step) Accuracy ±50 mV; Overdischarge release voltage 2.0 V to 3.4 V^*2 Accuracy ±100 mV; Discharge overcurrent detection voltage 1 0.010 V to 0.100 V (1 mV step) Accuracy ±3 mV; Discharge overcurrent detection voltage 2 0.030 V to 0.200 V (1 mV step) Accuracy ±5 mV; Load short-circuiting detection voltage 0.050 V to 0.500 V (5 mV step) Accuracy ±20 mV; Charge overcurrent detection voltage −0.100 V to −0.010 V (1 mV step) Accuracy ±3 mV
Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
0 V battery charge: Enabled, inhibited
Power-down function: Available, unavailable
Release condition of discharge overcurrent status: Load disconnection, charger connection
Release voltage of discharge overcurrent status: Discharge overcurrent detection voltage 1 (Vdiov1); Discharge overcurrent release voltage (Vriov) = Vdd × 0.8 (typ.)
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: 2.0 μA typ., 4.0 μA max. (Ta = +25°C); During power-down: 50 nA max. (Ta = +25°C); During overdischarge: 500 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.)

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.