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UM2754
User manual
EVALSTGAP2S: isolated 4 A single gate driver demonstration board
Introduction
The EVALSTGAP2S board allows evaluating all the STGAP2S features while driving a half-bridge power stage with voltage
rating up to 1700 V in TO-220 or TO-247 package.
The board allows to easily select and modify the values of relevant external components in order to facilitate driver's
performance evaluation under different applicative conditions and fine pre-tuning of the final application's components.
Figure 1.
EVALSTGAP2S demonstration board
UM2754 - Rev 1 - November 2020
www.st.com
For further information contact your local STMicroelectronics sales office.

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Summary of Contents for ST EVALSTGAP2S

  • Page 1 EVALSTGAP2S: isolated 4 A single gate driver demonstration board Introduction The EVALSTGAP2S board allows evaluating all the STGAP2S features while driving a half-bridge power stage with voltage rating up to 1700 V in TO-220 or TO-247 package. The board allows to easily select and modify the values of relevant external components in order to facilitate driver’s performance evaluation under different applicative conditions and fine pre-tuning of the final application’s components.
  • Page 2: Board Description And Configuration

    UM2754 Board description and configuration Board description and configuration The board allows tuning several design parameters, giving the possibility to evaluate and optimize the performance and switching characteristics of the power stage. The user can select and mount the power switch of choice either in TO-220 or TO-247 package; the board also allows installing an optional heatsink.
  • Page 3: Table 1. Board Connectors

    UM2754 Board description and configuration Table 1. Board connectors Name Label Description 1 - 2 DCDCL Low-side VH supply voltage 1 - 2 DCDCH High-side VH supply voltage IN+_H High-side driver logic input, active high IN-_H High-side driver logic input, active low IN+_L Low-side driver logic input, active high IN-_L...
  • Page 4: Table 2. Board Jumpers Setting

    UM2754 Board description and configuration Table 2. Board jumpers setting Jumper Permitted configurations Default condition HS gate voltage configuration: selection of negative Closed voltage (refer to Table Input signals configuration: IN-_L connected to IN+_H Closed Input signals configuration: IN+_L connected to IN-_H Closed Input signals configuration: IN-_L connected to IN-_H Open...
  • Page 5: Logic Supply Voltage (Vdd)

    UM2754 Logic supply voltage (VDD) Logic supply voltage (VDD) It is possible to provide the gate driver control logic supply VDD in three alternative ways to match driver input threshold with the controlling signals voltage swing: • Using the onboard 3.3 V Zener D2 regulator to supply VDD. The Zener is supplied from DC-DC input voltage VAUX.
  • Page 6: Gate Driver Supply Voltage (Vh)

    UM2754 Gate driver supply voltage (VH) Gate driver supply voltage (VH) It is possible to provide the gate driver supply voltage VH in several alternative ways: • Using isolated DC-DC converters in the standard SIP7 package (U5, U6). • Using the bootstrap diode D3 by supplying the low-side driver via J1 and mounting the resistor R3 (initial suggested value 10 Ω).
  • Page 7: Drivers Logic Input Signals

    UM2754 Drivers logic input signals Drivers logic input signals Drivers logic input signals can be applied through the dedicated pins of J9 or J10 connector (refer to Table 1 details). It is possible to reduce the required driving signals exploiting the onboard jumpers according to Table Table 6.
  • Page 8: Revision History

    UM2754 Revision history Table 8. Document revision history Date Version Changes 29-Oct-2020 Initial release. UM2754 - Rev 1 page 8/12...
  • Page 9: Table Of Contents

    UM2754 Contents Contents Board description and configuration ..........2 Logic supply voltage (VDD) .
  • Page 10 UM2754 List of tables List of tables Table 1. Board connectors..............3 Table 2.
  • Page 11 EVALSTGAP2S demonstration board ........
  • Page 12 ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’...

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