Global warming, air pollution and other environmental issues have accelerated the trend away from the internal combustion engine (ICE*) towards EV, PHEV, HEV and other environmentally conscious vehicles.
The EU ELV* Directive is a vigorous effort to reduce the environmental impact through a reduction of substances of concern including lead. However, the 12V lead-acid battery is exempt from the Directive and will continue to be used as there is no alternative that can replace its use in ICE, EV, PHEV or HEV vehicles.
Since 12V lead-acid batteries are expected to be prohibited in the near future, battery manufacturers are working on developing a 12V lithium-ion battery replacement. Lithium-ion batteries differ from lead-acid batteries in that they require a BMS* for high-accuracy monitoring of battery voltage, charge-discharge current, temperature, etc. To prevent battery depletion, a reduction in standby current is indispensable.
ABLIC provides a host of products that are ideal as ICs in a BMS. ABLIC’s lineup includes lithium-ion battery protection ICs suitable for voltage monitoring of any battery cell, battery monitoring ICs suitable for total voltage monitoring of battery cells, operational amplifiers suitable for monitoring charge-discharge current, intermittently operating convenience timer ICs suitable for reducing standby current or low current consumption power supply ICs. ABLIC has a host of products enabling selection of ICs ideal for 12V BMS.
- *ICE: Internal Combustion Engine
- *ELV: End of Life Vehicle
- *BMS: Battery Management System
Click the product name for more product information.
ABLIC’s ICs ideal for 12V Battery Management System (BMS)
|Product||Recommended product||Applications and Features|
|Lithium-ion Battery Protection IC||S-19192↓||Battery monitoring IC for 3-serial to 6-serial cell pack. With a standalone monitoring function and self-diagnosis (self-test) function.|
|Battery Monitoring IC
|S-191E↓||Provides overvoltage and undervoltage monitoring. Built-in SENSE Pin reverse connection protection circuit. Current consumption of 0.9µA.|
|Operational amplifier||S-19630A↓||High-accuracy current detection. 36V operation, Rail-to-Rail input/output, low offset voltage of 50μV.|
|Operational amplifier||S-19611A↓||High-accuracy current detection. 5.5V operation, Rail-to-Rail input/output, low offset voltage of 100μV.|
|Convenience Timer||S-35720 A↓||Ultra-low current consumption of 0.2uA typ. Reduce standby current by operating the system intermittently.|
|S-19310↓||Supplies and monitors power to the timer IC controlling intermittent operation. World’s lowest current consumption of 2.2µA. With reset function.|
|Watchdog Timer||S-19518/9↓||With reset and LDO regulator functions. Current consumption of 3.2µA.|
|EEPROM||S-25AxxxB↓||SPI Serial EEPROM. Comes with a variety of functions for preventing incorrect operation. Ensures 300,000 rewrites in operation at up to 125℃.|
Lithium-ion Battery Protection IC S-19192 series Ultra-low current consumption
A Simple Configuration Capable of Standalone Monitoring Provided with a Self-diagnosis Function for Failure Detection
This is a 3 to 6-serial cell battery monitoring IC with a standalone monitoring function and self-diagnosis (self-test) function. Since the current consumption during operation is 18μA (max.), it can also be used in systems with strict standby current restrictions.
Overcharge detection voltage accuracy: 2.5 to 4.5V (±20mV)
Overdischarge detection voltage accuracy: 1.5 to 3.0V (±80mV)
Battery Monitoring IC S-191E series Ultra-low current consumptionUltra-compact package
High-reliability Voltage Monitoring for Functional Safety
A window battery monitoring IC that detects 36V input, undervoltage and overvoltage with high accuracy. The wide rated voltage from -30 to 45V of the monitoring connection (SENSE) pin enables input of high voltage as well as negative voltage.
Undervoltage detection: 4.0V to 10.0V
Overvoltage detection: 16.0V to 18.0V
High-accuracy Operational Amplifier S-19630A Low offset voltage36V operation
Contributing to High-Accuracy Current Sensors
A wide operating voltage range allows use of this IC in systems from 5V to high-voltage systems directly connected to battery. Low offset voltage enables high-accuracy current detection. Input Rail-to-Rail enables low-side and high-side current detection.
Operating voltage range: 4.0 V to 36 V
Low offset voltage: 50μV max.
High-accuracy Operational Amplifier S-19611A Low offset voltageLow voltage operation
Contributing to High-Accuracy Current Sensors
Low offset voltage enables high-accuracy current detection. Input Rail-to-Rail enables low-side and high-side current detection.
Operating voltage range: 2.65 V to 5.5 V
Low offset voltage: 100μV max.
Convenience Timer S-35720 A series Ultra-low current consumptionAlarm interrupt function
Intermittent Operation Greatly Reduces System Standby Current
This is a convenience timer with a hardware timer setting that allows the user to select alarm interrupt times using time setting pins. Thanks to its ultra-low current consumption of 0.2uA, this timer IC can replace the internal timer of a microcontroller (MCU) , which helps to greatly reduce standby current by operating the system intermittently.
Operating voltage range: 1.8 V to 5.5 V
LDO Regulator S-19310 series Ultra-low current consumption
World’s Lowest Current Consumption Reduces Standby Current
This is an LDO regulator with a 36V input, 40mA output, an ultra-low current consumption of 2.2μA (typ.) and comes with a reset function for monitoring the output voltage of the internal LDO regulator. It can be used as a timer IC power supply to create an intermittently operating system with ultra-low current consumption.
Output voltage: 2.9V~5.3V
Watchdog Timer S-19518/9 series Ultra-low current consumption
Single chip IC for Supplying MCU Power, Monitoring Voltage and Operation
This is a window watchdog timer IC with a 36V input, 500mA output and reset and LDO regulator functions. Current consumption during operation is a mere 3.2uA and when the Enable (EN) pin turns off the power supply to the MCU, standby current is reduced to virtually zero.
Output current: 250mA
Output current: 500mA
EEPROM S-25AxxxB series Page writeSequential read
An IC Satisfying the Industry’s Highest Standards, Fully Operational up to +125℃, Data Can be Rewritten up to 300,000 Times and Retained for up to 50 Years
This is an 8K to 256Kbit SPI bus serial EEPROM. We provide a broad lineup of packages from 8-pin SOP, 8-pin TSSOP and 8-pin TMSOP.
Memory capacity: 8K, 16K, 32K-bit
Memory capacity: 64K-bit
Memory capacity: 128K-bit
Memory capacity: 256K-bit