ROHM Semiconductor Automotive EDLC Monitoring ICs
ROHM Automotive EDLC Monitoring ICs are cell balancing ICs that contributes to increased miniaturization, greater stability, and longer life for EDLCs (Electric Double Layer Capacitors), These are driving the adoption of energy regeneration applications in industrial equipment, automotive idling stop systems, and voltage sag (instantaneous voltage drop) countermeasures. These ICs integrate over 20 discrete components required for EDLC cell balancing on a single chip. This reduces the mounting area by 38% over conventional solutions while eliminating component variations, making it easy to configure compact, high-reliability EDLC systems.
In addition to cell balancing functionality for up to 6 cells, multiple ICs can be connected in series to enable simultaneous control of even more cells. The cell balancing voltage can be set between 2.4V and 3.1V, ensuring support for a variety of EDLCs. Flag output is also built in, along with an over-current detection voltage function with adjustable detection voltage setting based on the cell balancing voltage. In addition, AEC-Q100 qualification ensures worry-free use in automotive and other environments requiring high reliability.
Features
- AEC-Q100 qualified
- All EDLC cell balancer functions are integrated on a single chip
- Self- controlled EDLC balance function
- Adopts shunt resistance method for simple balancing
- 4 to 6 cell series connection ready
- Multiple chip series connection is possible
- Built-in over-voltage detection flag output
- Detection voltage can be set
Applications
- Renewable energy power storage for automotive, production machinery, and building machinery
- UPS and other devices that stabilize power supplies
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Additional Resources
Block Diagram
Technology Diagrams
Opublikowano: 2015-01-28
| Zaktualizowano: 2022-03-11