Power Management ICs

Battery Protection IC with Temperature Protection Function for 1-Cell Pack S-82D1A Series

The S-82D1A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries, which includes temperature protection circuits, high-accuracy voltage detection circuits, and delay circuits.
Temperature protection is possible by connecting an NTC thermistor to the dedicated connection pin.
It is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent.

Features

High-accuracy temperature protection circuit by an external NTC thermistor
High temperature charge-discharge inhibition temperature: +40°C to +85°C (1°C step) Accuracy ±3°C*1
High temperature charge inhibition temperature: +40°C to +85°C (1°C step) Accuracy ±3°C*1
Low temperature charge inhibition temperature: -40°C to +10°C (1°C step) Accuracy ±3°C*1
Low temperature charge-discharge inhibition temperature: -40°C to +10°C (1°C step) Accuracy ±3°C*1
High-accuracy voltage detection circuit
Overcharge detection voltage: 3.500 V to 4.600 V (5 mV step) Accuracy ±15 mV
Overcharge release voltage: 3.100 V to 4.600 V*2 Accuracy ±50 mV
Overdischarge detection voltage: 2.000 V to 3.000 V (10 mV step) Accuracy ±50 mV
Overdischarge release voltage: 2.000 V to 3.400 V*3 Accuracy ±75 mV
Discharge overcurrent detection voltage 1: 0.003 V to 0.100 V (0.5 mV step) Accuracy ±1.5 mV
Discharge overcurrent detection voltage 2: 0.010 V to 0.100 V (1 mV step) Accuracy ±3 mV
Load short-circuiting detection voltage: 0.020 V to 0.100 V (1 mV step) Accuracy ±5 mV
Charge overcurrent detection voltage: −0.100 V to −0.003 V (0.5 mV step) Accuracy ±1.5 mV
Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
Charge-discharge control function
CTL pin control logic: Active "H", active "L"
CTL pin internal resistance: Pull-up, pull-down
CTL pin internal resistance value: 1 MΩ to 5 MΩ (1 MΩ step)
Discharge overcurrent control function
Release condition of discharge overcurrent status: Load disconnection
Release voltage of discharge overcurrent status: Discharge overcurrent release voltage (VRIOV) = VDD × 0.8 (typ.)
Discharge overcurrent status reset function by CTL pin
Available, unavailable
0 V battery charge function is selectable
Enabled, inhibited
Power-down function
Available, unavailable
High-withstand voltage
VM pin and CO pin: Absolute maximum rating 28.0 V
Wide operation temperature range
Ta = −40°C to +85°C
Low current consumption
During operation: 2.5 μA typ., 5.0 μA max. (Ta = +25°C)
During power-down: 100 nA max. (Ta = +25°C)
During overdischarge: 0.5 μA max. (Ta = +25°C)
Lead-free (Sn 100%), halogen-free

*1. Temperature detection accuracy varies with NTC thermistor specifications.
When an NTC thermistor listed in Table 6 of the datasheet is connected, the detection temperature and accuracy can be achieved.

*2. 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.)

*3. 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.