Automotive ICs

Automotive Lithium-ion Battery Protection ICs / EDLC Voltage Monitoring ICs

For general use  |  For automotive

An automotive lithium-ion battery protection IC is an IC that monitors overcharge, overdischarge, and overcurrent to protect lithium-ion batteries used in automotive equipment, ensuring safe operation.
ABLIC's automotive lithium-ion battery protection ICs include the world's first* automotive 1-cell battery protection IC, as well as multi-cell battery protection ICs designed for automotive BMS in accordance with the ISO26262 Functional Safety (Fusa) Standard. They protect 1 to 6 cells and can protect 7 or more cells through cascading connections. High-accuracy overcharge, overdischarge, and overcurrent detection, along with a self-test function, ensure safe battery management.
We also offer EDLC voltage monitoring ICs equipped with cell balancing and power-saving functions.
Moreover, our automotive battery protection ICs/EDLC voltage monitoring ICs are AEC-Q100 qualified and PPAP (Production Part Approval Process) capable. This ensures high quality and reliability, making them suitable for safety critical components such as BMS. For FuSa-compliant products, we provide a Safety Manual, making them ideal for automotive applications that require higher safety.

*As an automotive 1-cell battery protection IC. Based on our research as of January 2025.

Product Lineup

  • Linear Regulators (LDO Regulators) (125°C)
  • Linear Regulators (LDO Regulators) (105°C)
  • Voltage Trackers (125°C)
  • Voltage Detectors (Battery Monitoring & Reset ICs) (150°C)
  • Voltage Detectors (Battery Monitoring & Reset ICs) (125°C)
  • Voltage Detectors (Battery Monitoring & Reset ICs) (105°C)
  • Watchdog Timers
  • Switching Regulators (DC-DC Converters)
  • Connection Diagnosis ICs
  • Lithium-ion Battery Protection ICs / EDLC Protection ICs

Lithium-ion Battery Protection ICs / EDLC Protection ICs (125°C/105°C)

Function              
                 
Cell-balancing   S-19190          
Overcharge detection   S-19161   S-19192 S-19193    
Overdischarge detection          
               
    1-cell .... 6-cell 7-cell or more   Number of cells
To circuit examples: Camera modulePower supply

Selection Table

Please select a subcategory tabs below.

Series NameDatasheetApplication NoteProduct CategoryBuy OnlineParts ListFeaturesApplicationOvercharge detection voltage min. [V]Overcharge detection voltage max. [V]Overcharge detection voltage accuracy ±[mV]Overdischarge detection voltage min. [V]Overdischarge detection voltage max. [V]Overdischarge detection voltage accuracy ±[mV]Overcurrent detection voltage min. [V]Overcurrent detection voltage max. [V]Overcurrent detection voltage accuracy ±[mV]Overcharge detection delayOperation temp. min. [°C]Operation temp. max. [°C]Package
1-cell
3-cell
4-cell
5-cell
6-cell
EDLC voltage monitoring
Built-in delay timer
-40
105
125
HTSSOP-16
SOT-23-6
S-19161A Automotive Lithium-ion Battery Protection ICs / EDLC Voltage Monitoring ICs chip1stop CoreStaFF Digi-Key MOUSER Battery protection for 1-cell Pack Automotive 1-cell 3.5 4.8 15 2.0 3.0 50 0.005 0.100 1.5 Built-in delay timer -40 125 SOT-23-6
S-19161B Automotive Lithium-ion Battery Protection ICs / EDLC Voltage Monitoring ICs chip1stop CoreStaFF Digi-Key MOUSER Battery protection for 1-cell Pack Automotive 1-cell 3.5 4.8 15 2.0 3.0 50 0.003 0.100 1.0 Built-in delay timer -40 125 SOT-23-6
S-19190 Automotive Lithium-ion Battery Protection ICs / EDLC Voltage Monitoring ICs chip1stop CoreStaFF Digi-Key MOUSER Cell balancing, overcharge protection Automotive EDLC voltage monitoring 2.0 4.6 12 - - - - - - - -40 105 SOT-23-6
S-19192 Automotive Lithium-ion Battery Protection ICs / EDLC Voltage Monitoring ICs chip1stop CoreStaFF Digi-Key MOUSER For voltage monitoring Automotive 3-cell, 4-cell, 5-cell, 6-cell 2.5 4.5 20 1.5 3.0 80 - - - Built-in delay timer -40 105 HTSSOP-16
S-19193 Automotive Lithium-ion Battery Protection ICs / EDLC Voltage Monitoring ICs chip1stop CoreStaFF Digi-Key MOUSER For voltage monitoring Automotive 3-cell, 4-cell, 5-cell, 6-cell 2.5 4.5 20 1.0 3.0 80 - - - Built-in delay timer -40 125 HTSSOP-16