EVALSTGAP1S STMicroelectronics

UM1839 User manual EVALSTGAP1S: demonstration board for STGAP1S galvanically isolated single gate driver Introduction The STGAP1S gapDRIVE is a galvanically isolated single gate driver for N-channel MOSFETs and IGBTs with advanced protection, configuration and diagnostic features. The architecture of the STGAP1S isolates the channel from the control and the low voltage interface circuitry through a true galvanic isolation. The EVALSTGAP1S board allows evaluating all of the STGAP1S features while driving a power switch with a voltage rating up to 1500 V. Power switches in both TO-220 and TO-247 packages can be evaluated, and the board allows the connection of a heatsink in order to exploit the ability of the STGAP1S to handle very high power applications. In combination with the STEVAL-PCC009V2 communication board and the gapDRIVE evaluation software, the board allows to easily enable, configure or disable all of the driver s protection and control features through the SPI interface. Advanced diagnostic is also available thanks to the driver s status registers that can be accessed through the SPI. Multiple boards can be connected together and share the same logic supply voltage and control signals in order to evaluate half bridge, interleaved or even more complex topologies. The board allows implementing the SPI daisy chain when more than one device is used. Figure 1. EVALSTGAP1S demonstration board November 2014 DocID027168 Rev 1 1/18 www.st.com 18Contents UM1839 Contents 1 Hardware description and configuration 3 2 Connection of two EVALSTGAP1S boards . 6 3 Getting started . 10 3.1 Using EVALSTGAP1S in standalone mode . 10 3.1.1 Check list 10 3.1.2 EVALSTGAP1S board setup example 10 3.1.3 EVALSTGAP1S board in standalone mode 10 3.1.4 EVALSTGAP1S default parameters . 11 3.2 Using EVALSTGAP1S with STEVAL-PCC009V2 and STGAP1S evaluation software 11 3.2.1 Check list 11 3.2.2 Single EVALSTGAP1S board setup example 11 3.2.3 Connection to STEVAL-PCC009V2 interface board . 12 3.2.4 Using two EVALSTGAP1S boards in daisy chain configuration 15 4 Revision history . 17 2/18 DocID027168 Rev 1