Battery protection ICs Ideal for devices requiring higher current
- Provides high-accuracy overcurrent protection
not impacted by battery voltage and ambient temperature. - External signal input pin for
charge-discharge control and thermal protection. - Contributes to lowering standby current
during long-term storage of devices.
World’s first* 2-cell battery protection IC using external current detection resistor for high-accuracy overcurrent detection
S-82A2/B2 Series
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Battery protection ICs ideal for high-accuracy overcurrent protection
and higher safety
Provides high-accuracy overcurrent protection.
The S82A2A/B/C and S-82B2A/B Series are
the world’s first* 2-serial cell battery protection ICs using an external current detection resistor to deliver high-accuracy overcurrent protection not easily susceptible to battery voltage and temperature fluctuations.
Moreover, the S-82A2A/B/C series comes with a protection IC whose charge/discharge overcurrent detection voltage accuracy of ±1mV places it in the industry’s high-accuracy top class.
Contributes to better safety of small power tools, cordless cleaners and other devices that use comparatively high current.
*Based on our research as of May 2022
Provides charge-discharge control and thermal protection
In the S-82A2A/C and S-82B2A Series, an external input to the CTL (charge-discharge control signal input) pin activates the charge-discharge control function and disables battery charge and discharge. By connecting a PTC thermistor to the CTL pin, the IC delivers thermal protection by disabling charging and discharging of the battery pack at high temperatures.
Reduces standby current
In the S-82A2B and S-82B Series, an external input to the PS (power-saving signal input) pin will activate the power-saving function and disable battery discharge.
Simultaneously, the protection IC itself suppresses current consumption to 50nA max.
This helps lowering battery consumption to virtually zero during long-term storage of devices, which contributes to reducing standby current.
Application
- Digital camera
- Tablet PC
- Radio equipment
- Small power tool
- Cordless cleaner
- Gardening tool
Battery Protection ICs Lineup
Specifications
| Product name | S-82A2A/C | S-82A2B | S-82B2A | S-82B2B | |
|---|---|---|---|---|---|
| For general-use | |||||
| Number of cells | 2-cell | ||||
| Product type | Sense resistor | ||||
| function | Charge-discharge control | Power-saving | Charge-discharge control | Power-saving | |
| Overcharge detection voltage (Accuracy) | 3.50 V to 4.80 V(±15mV) | 3.50 V to 4.80 V(±20mV) | |||
| Overdischarge detection voltage (Accuracy) | 2.00 V to 3.00 V(±50mV) | ||||
| Discharge overcurrent 1 detection voltage (Accuracy) |
0.003 V to 0.100 V(±1mV) | 0.003 V to 0.100 V(±3mV) | |||
| Discharge overcurrent 2 detection voltage (Accuracy) |
0.010 V to 0.100 V(±3mV) | 0.010 V to 0.100 V(±5mV) | |||
| Current consumption during operation | 3.0μA typ., 6.0μA max. (Ta = +25℃) | ||||
| Current consumption during power-down | 50nA max. (Ta = +25℃) | ||||
| Package | HSNT-8(1616), SNT-8A | ||||
| Operation temperature range | Ta= -40°C to +85°C | ||||
| Datasheet | |||||
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S-82A2A/B/C Series
S-82B2A/B Series