SDAA341 June   2026 F28377D-SEP , INA901-SP , SN54SLC8T245-SEP , TPS7A4501-SP , TPS7H1121-SEP , TPS7H1121-SP , TPS7H5020-SEP , TPS7H5020-SP , TPS7H6101-SEP

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Detailed Description
    1. 2.1 Design Concept
  6. 3Hardware Design Details
    1. 3.1 Power Stage
    2. 3.2 Current Sense
    3. 3.3 Temperature Monitoring
    4. 3.4 Area Estimate Per Power Stage
    5. 3.5 Connecting the F28379D LaunchPad
    6. 3.6 Software Design
  7. 4Results
    1. 4.1 Thermal Performance
  8. 5Summary
  9. 6References

2.1 Design Concept

The described space-grade motor control platform leverages the comprehensive design development ecosystem of the C2000 MCU family. The hardware is based on the C2000 MCU Launchpad EVM LAUNCHXL-F28379D which allows to connect to various so-called application specific booster packs such as the BOOSTXL-3PHGANINV, a 48V Three-Phase Inverter With Shunt-Based In-Line Motor Phase Current Sensing Evaluation Module (Figure 2-1).

The Commercially Available Evaluation Kit of One LAUNCHXL-F28379D and Two BOOSTXL-3PHGANINV Form the Basis for this Space-Grade Design Figure 2-1 The Commercially Available Evaluation Kit of One LAUNCHXL-F28379D and Two BOOSTXL-3PHGANINV Form the Basis for this Space-Grade Design

The launchpad provides a great evaluation platform for all devices of the TMS320F2837x family, including its space-grade member, F28377D-SEP, due to their software and pin-compatibility to each other. The BOOSTXL-3PHGANINV booster pack however is a pure commercial grade implementation and needs to be re-designed to host the mentioned space-grade devices. Never-the-less, the existing motor control software for the combination of LAUNCHXL-F28379D and BOOSTXL-3PHGANINV can be completely re-used for space-grade applications.

The space-grade power stage design was therefore held compatible as much as possible to the BOOSTXL-3PHGANINV. For the space-grade power stage PCB it was decided to double the number of individual power stages to six to enable dual three-phase motor control or a single 2-phase or 3-phase stepper implementation (Figure 2-2.)

System Block Diagram of the Space-Grade Motor Drive Booster Pack Figure 2-2 System Block Diagram of the Space-Grade Motor Drive Booster Pack