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ROHM Introduces The Industry's First Monolithic Supercap (EDLC) Cell Balancing IC

Promotes expansion of the supercapacitor energy regeneration market for automotive and industrial applications

ROHM Semiconductor.

News provided by

ROHM Semiconductor

Jan 29, 2015, 02:00 ET

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KYOTO, Japan and SANTA CLARA, Calif., Jan. 29, 2015 /PRNewswire/ -- ROHM Semiconductor has recently announced the development of a cell balancing IC that contributes to increased miniaturization, greater stability, and longer life for supercaps, or EDLCs (Electric Double Layer Capacitors), which are driving the adoption of energy regeneration applications in industrial equipment, automotive start-stop systems, and voltage sag (instantaneous voltage drop) countermeasures.

ROHM's Supercap (EDLC) Cell Balancer IC Product Overview Video
ROHM's Supercap (EDLC) Cell Balancer IC Product Overview Video
ROHM's cell balancing IC contributes to increased miniaturization, greater stability, and longer life for supercaps (EDLCs) used in automotive and industrial applications.
ROHM's cell balancing IC contributes to increased miniaturization, greater stability, and longer life for supercaps (EDLCs) used in automotive and industrial applications.
ROHM's Supercap (EDLC) Cell Balancer IC Product Overview Video
ROHM's cell balancing IC contributes to increased miniaturization, greater stability, and longer life for supercaps (EDLCs) used in automotive and industrial applications.

The BD14000EFV-C integrates over 20 discrete components required for supercap cell balancing on a single chip, reducing mounting area by 38% over conventional solutions while eliminating component variations, making it easy to configure compact, high reliability supercap 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 supercaps. Flag output is also built-in, along with an overcurrent 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.

Pricing:

$7.43 (2,000pcs, BD14000EFV-C); $122.00 (evaluation board, BD14000EFV-EVK-001)

Availability:

Samples Now

Delivery:

14 weeks ARO

Key Features

1. All required supercap cell balancing functions integrated on a single chip reduces mounting area by 38%

Proprietary analog design technology cultivated over many years, combined with sample evaluations and specifications determined by Nippon Chemi-Con, have allowed ROHM to develop the industry's first IC that integrates supercap cell balancing functionality – which conventionally requires over 20 discrete components – on a single chip. This not only simplifies design, but reduces mounting area by 38%.

Detection is enabled for 4-6 cells, and the shunt resistor method is used to achieve simple cell balancing operation, making self-contained operation possible and reducing design load considerably. In addition, the cell balancing voltage can be adjusted (2.4V to 3.1V in 0.1V increments) to ensure compatibility with a wide range of supercap output voltages.

2. Supports higher voltage supercap applications by expanding the number of cells

The supercap market itself is trending towards higher voltages and capacitances, and the practice of connecting large-capacitance supercaps in series to generate higher voltages is increasing.  In response, the BD14000EFV-C allows multiple ICs to be connected in series, making it possible to provide cell balancing functionality for high voltage supercap applications.

3. Two protection functions enable double-checking of cell conditions; automotive standard AEC-Q100 qualified

In addition to cell balancing operation, overcurrent detection and flag output functions are included that improve system reliability by detecting the degree of cell degradation. And AEC-Q100 certification ensures that the IC meets special environmental requirements (i.e. automotive noise).

Applications

  • Energy regeneration: automotive, industrial equipment, construction machinery, and other systems that reutilize kinetic energy
  • Power supply stabilization/voltage sag countermeasures: emergency backup (i.e. UPS)
  • Startup power auxiliary: automotive start-stop systems, rapid OA equipment startup
  • Lead-acid battery replacement: no lead minimizes environmental impact; provides longer life

CONTACT: Jayme Pontious, [email protected]

Video - http://youtu.be/IuRiqUxwhuU
Photo - http://photos.prnewswire.com/prnh/20150129/172173
Logo - http://photos.prnewswire.com/prnh/20121018/LA95513LOGO

SOURCE ROHM Semiconductor

Related Links

http://www.rohm.com

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