Battery Charger Extends Backup Battery Life In Automotive eCall Systems

Battery Charger Extends Backup Battery Life In Automotive eCall Systems
Intersil Corp.

The ISL78693 3.6V, single-cell battery charger promises to extend lithium iron phosphate (LiFePO4) battery life in automotive emergency call (eCall) systems. Said to be the industry’s lowest, it exhibits a leakage current of 3 µA, reportedly up to 4x lower than comparable chargers.

Other features include:
• A reverse battery leakage of 700 nA (typical) and 3 µA (maximum) from -40°C to +85°C
• up to 1A programmable charging current
• Guaranteed operation down to 2.65V after start-up
• A 1% initial voltage accuracy
• an integrated power transistor and current sensor
• A 10% trickle charge that preconditions a fully drained battery until it reaches 2.6V minimum charge level
• An NTC thermistor input that monitors temperature and shuts off charger when battery is outside the specified charging temperature.

The ISL78693 battery charger is available now in a 10-pin, 3 mm x 3 mm DFN package priced at $0.99 each/1,000. An ISL78693EVAL1Z evaluation board is also available for $56. For more information and a datasheet, visit

Intersil Corp.
Milpitas, CA

Contact Info

Company: Intersil Corp.
Phone number: 888-468-3774

Suggested Articles

Revenues overall hit $3.82 billion, up 1% from third quarter of 2019, as auto plants reopened and personal electronics revenues grew

MIT Sloan and Boston Consulting Group call for expanding organizational learning to gain better financial rewards of AI deployments

Originally a 1960s memory manufacturer, Intel wants out of NAND following the market decline in 2018