3-phase motor drive provides 100k rad total dose protection

17th June 2016
Posted By : Nat Bowers
3-phase motor drive provides 100k rad total dose protection

Featuring 100k rad total dose protection and advanced circuit and logic protection to ensure fail-safe operation, Data Device Corporation (DDC) has announced a high-reliability, 3-phase radiation tolerant motor drive. The PW-82336 utilises a high-efficiency, radiation tolerant MOSFET output stage with 100VDC rating to deliver 5A continuous current (10A peak current) to the motor, along with flexible I/O, enabling a common design to be used across multiple applications.

The flexible I/O allows common design to be used across multiple application platforms with individual bridge returns and standard logic level inputs to facilitate design implementation. The PW-82336 eliminates shoot-through conditions with high and low-side input logic signals XOR's in each phase to prevent simultaneous turn on of in-line transistors.

The device's internal charge pump circuitry provides constant output performance for switching frequencies from DC to 50kHz. It also features internal logic controls (from +5 to +15V ) for the high and low-side gate drivers for each phase. The compact PW-82336 measures just 66x35.6x6.35mm (2.6x1.4x0.25").

“Packaged in a small case with internal logic for optimised performance, this high-reliability motor drive is an excellent choice for servo-amplifiers and speed controls in high performance space, aerospace and military applications,” commented Vincent Giardini, Product Line Director, Motor Control Solutions, DDC.


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