Battery protection ICs for 1-cell pack
Further improving the safety of wearable devices
-Battery protection ICs with ultra-low current consumption-
Contributes to longer battery life and higher safety
deliver the world's lowest* current consumption during operation of 990nA max.
In addition to a power-saving function, charge-discharge control function and other high-performance features, they also have the world's lowest current consumption during operation.
And an overcharge detection voltage accuracy of ±15mV places them in the industry’s high-accuracy top class.
Prevents battery capacity dropping to zero and deep discharge
In the S-82N1B 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.
When the product is in storage and not used, this function extends the time until battery voltage drops to zero protecting the product from deep discharge and contributing to better safety.
Provides high-accuracy overcurrent protection
The S-82M1A Series uses an external current detection resistor to reduce the impact of temperature changes to deliver high-accuracy overcurrent protection.
Delivers charge-discharge control and thermal protection
In the S-82N1A 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.
Battery Protection ICs Lineup
|Number of cells||1-cell|
|Product type, function||Sense resistor||Charge-discharge control||Power-saving|
|Overcharge detection voltage (Accuracy)||3.5V to 4.6V (±15mV)|
|Overdischarge detection voltage (Accuracy)||2.0V to 3.0V (±50mV)|
|Discharge overcurrent detection voltage (Accuracy)||0.003V to 0.100V (±3mV)|
|Current consumption during operation||600nA typ., 990nA max. (Ta = +25°C)|
|Current consumption during power-down||50nA max. (Ta = +25°C)|
|Operation temperature range||Ta= -40°C to +85°C|