Half-Bridge MOSFET Driver supports voltages up to 28 V.

Press Release Summary:

Suited for multi-phase DC/DC converters, Model AAT4910 drives both high and low-side N-channel MOSFETs. Powered from 5 V rail, device is capable of driving high-side N-channel MOSFET with up to 28 V power input. When driven low, enable input turns off driver and reduces operating current to less than 1 µA. Housed in 2 x 2.1 mm SC70JW package, driver is qualified across -40 to +85°C temperature range and includes over-temperature protection as well as break-before-make shoot-through protection.

Original Press Release:

AnalogicTech's Half-Bridge MOSFET Driver Offers Lowest Impedance in Its Class for Multiphase DC-DC Converters

Fast Switching Frequency, Small Package Minimize Costs

SANTA CLARA, Calif., Dec. 16 /-- Advanced Analogic Technologies, Inc. (AnalogicTech(TM)) (NASDAQ:AATI), a developer of power management integrated circuits, announced today a new high-voltage addition to the company's growing MOSFET driver product family. Supporting voltages up to 28V, the AAT4910 half-bridge, dual MOSFET driver offers the industry's lowest impedance in its class for multiphase DC-DC converters.

"Today's multiphase DC-DC converter and motor control circuit designers need low cost drivers capable of supporting higher voltages," said CJ Zhang, product line vice president at AnalogicTech. "By operating at up to 28V and combining a high switching frequency with a compact SC70JW package, the AAT4910 meets that need. Moreover, with an extremely low 3 omega drive resistance, this new device allows them to drive larger MOSFETs faster in these applications."

Dual N-Channel MOSFET Switches

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 < 1 uA. A fast switching frequency helps minimize 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 which turns off the device when die temperature exceeds 140 degrees C.

Price and Availability

The AAT4910 is qualified across the -40 degrees C to +85 degrees C temperature range. It is available in a 2 x 2.1-mm, 8-lead SC70JW package. It sells for $0.48 in 1K quantities.

About AnalogicTech

Advanced Analogic Technologies, Inc. (AnalogicTech) is a supplier of Total Power Management(TM) 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. For more information, please visit the AnalogicTech website: www.analogictech.com/. (AnalogicTech - G)

AnalogicTech and the AnalogicTech logo are trademarks of Advanced Analogic Technologies Incorporated. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders.

CONTACT: Karolien Cools-Wittry of Advanced Analogic Technologies, Inc.,
+1-408-737-4600, Karoliencw (at) analogictech.com

Web site: http://www.analogictech.com/

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