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AnalogicTech : MOSFET driver offers lowest impedance in its class



Today’s multiphase DC-DC converter and motor control circuit designers need low cost drivers capable of supporting higher voltages. By operating at up to 28V and combining a high switching frequency with a compact SC70JW package, AnalogicTech’s AAT4910 MOSFET driver meets that need. Moreover, with an extremely low 3ohms drive resistance, the device allows them to drive larger MOSFETs faster in these applications.

The AAT4910 is the latest high-voltage addition to the company’s growing MOSFET driver product family. The half-bridge, dual MOSFET driver offers the industry’s lowest impedance in its class for multiphase DC-DC converters.

The AAT4910 dual MOSFET driver takes a logic input and drives both high and low-side N-channel MOSFETs. The high side external MOSFET is turned on when the logic input is driven high and the low-side MOSFET is turned on when the logic input is driven low. Powered from a 5V rail, the device features circuitry capable of driving the high-side N-channel MOSFET with up to 28V power input. When driven low, the enable input turns off the driver and reduces operating current to <1microamp. A fast switching frequency helps minimise the cost and size of external components.

Break-before-make shoot-through protection prohibits high-side and low-side MOSFETs on the AAT4910 from conducting current at the same time, and significantly reduces losses associated with the driver at high frequencies.

To protect the device from a short circuit or defective MOSFET, the AAT4910 also features over-temperature protection that turns off the device when die temperature exceeds 140 degrees C.

The AAT4910 is qualified across the -40 to +85 degrees C temperature range. It is available in a 2 x 2.1-mm, 8-lead SC70JW package.

For further information and reader enquiries:

Bijan Mohandes,
Advanced Analogic Technologies, Inc., Europe, Liberty House, The Enterprise Centre, Newgreenham Park, Newbury, RG19 6HW
Tel: +44 1635 817 260
Fax: +44 (0) 1635 817261
E-mail:
Web:

Advanced Analogic Technologies, Inc. (AnalogicTech) is a supplier of Total Power Management™ semiconductor solutions for mobile consumer electronic devices, such as wireless handsets, notebook and tablet computers, smartphones, digital cameras, wireless LAN, and personal media players. The company focuses its design and marketing efforts on the application-specific power management needs of consumer, communications, and computing applications in these rapidly evolving devices. AnalogicTech also develops and licenses device, process, package, and application-related technology. AnalogicTech is headquartered in Santa Clara, California and Macau, S.A.R., with offices in China (Beijing, Shanghai and Shenzhen), Hong Kong, Taiwan, Japan, South Korea, Sweden, France and United Kingdom, as well as a worldwide network of sales representatives and distributors. The company is listed on the NASDAQ exchange under the ticker symbol AATI.


Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.


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