NewsIndustry’s First Highly Integrated Radiation-Hardened Motor Controller Consolidates Essential Functions for the...

Industry’s First Highly Integrated Radiation-Hardened Motor Controller Consolidates Essential Functions for the Motor Control and Position Sensing Circuitry of Satellite Elements into a Single Chip

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The requirement to reduce dimension, weight as well as power (SWaP) on satellites and also various other space systems remains to challenge the aerospace market. Integrating greater than 20 generally used functions right into a single chip, Microchip Technology Inc. (Nasdaq: MCHP) today announced the LX7720 radiation-hardened blended signal motor controller, the most up to date addition to its Space System Manager (SSM) product family members. As the industry’s first extremely integrated radiation-hardened deliberately (RHBD) motor control integrated circuit (IC), the LX7720 considerably decreases weight and also board area about standard discrete motor control circuits. By decreasing the number of elements on a system, developers can check and also test less parts, while likewise reducing the physical factors of possible failure due to a smaller sized number of links and also solder joints.

The LX7720 controller provides an unique option for satellite suppliers sensitive to board area and also weight reduction by settling essential functions for the motor control and also position picking up wiring required for robotics, multi-axis directing devices as well as accurate activity control of optical aspects. Integrated circuit’s controller incorporates 4 half-bridge N-channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) drivers, four floating differential current sensors, a pulse modulated resolver transformer chauffeur, 3 differential resolver feeling inputs, 6 bi-level logic inputs, power drivers through external Field Effect Transistors (FETs), loop control electronic devices for voltage or existing control, placement read-back (resolver, potentiometer, limitation buttons, etc.), mistake discovery and also much more into a single tool.

” As the reduction of weight and also board space on satellites continues to test the aerospace market, we are pleased to reinforce our dedication to developing ingenious solutions with this extremely reliable and also extremely incorporated radiation-hardened motor controller,” stated Bryan J. Liddiard, vice president of Microchip’s combined signal linear service device. “The LX7720 enhances our ever-growing area product profile as we remain to broaden a complete system service for our consumers developing these innovative satellites.”

The LX7720 is MIL-PRF-38535 Class V as well as Class Q qualified and has currently been adopted by customers to allow numerous electric motor control applications in space robotics and also human-rated area programs. It is the optimal option for spacecraft applications including motor driver servo control, straight actuator servo control and for driving stepper, brushless straight current (BLDC) and also permanent-magnet synchronous (PMSM) motors.

Development Tools
Hardware consists of the LX7720 Daughter Board (DB) that interfaces with Microchip’s SAMRH71F20-EK Evaluation Kit. These development systems provide motor control software to enable application certain examination with the LX7720-DB.

Rates as well as Availability
The LX7720 is available in MIL-PRF-38535 Class Q as well as V flows packaged in a 132-pin hermetic ceramic quad flatpack as well as a sub-QML screened alternative used in a 208-pin plastic plan. Examples and also the LX7720-DB growth boards are readily available. For extra info and to purchase these products, contact a Microchip sales representative, licensed globally representative, or go to Microchip’s website.


Michal Pukala
Electronics and Telecommunications engineer with Electro-energetics Master degree graduation. Lightning designer experienced engineer. Currently working in IT industry.