300VDC-800VDC Input: 54W 4 Channel Outputs: PSR Flyback with SiC-FET Reference Design

Texas Instruments

Description

This design uses low cost primary side regulation (PSR) IC UCC28700 with a SiC-FET for 300VDC-800VDC input range. Four outputs with separated grounds: 25V/19W: 25V/17W: 25V/10.1W: and 25V/8W are generated.

End equipment reference diagrams

Application area	End equipment
AC drive power stage module	https://www.ti.com/solution/ac-drive-power-stage-module#referencedesigns
Motor diagnostics & monitoring	https://www.ti.com/solution/motor-diagnostics-monitoring#referencedesigns
Servo drive power stage module	https://www.ti.com/solution/servo-drive-power-stage-module#referencedesigns
Servo drive power supply module	https://www.ti.com/solution/servo-drive-power-supply-module#referencedesigns
Multifunction relay	https://www.ti.com/solution/multi-function-relay#referencedesigns

Features

High voltage DC input: 300VDC-800VACFour outputs with separated grounds: 25V/19W: 25V/17W: 25V/10.1W: and 25V/8W54W Maximum output power rating at efficiency of 88.3% at 300VDC: 87.5% at 800VDC