For further information contact your local STMicroelectronics sales office.

November 2018

DB3768 Rev 1

1/12

EVALSTGAP2SM

Demonstration board for STGAP2SM isolated 4 A single gate

driver

Data brief

Features

 High voltage rail up to 1700 V

 Driver current capability:

– 4 A source/sink at 25 °C

 Separate sink and source for simplified gate

driving configuration (STGAP2SM)

 4 A Miller clamp (STGAP2SCM)

 Short propagation delay: 100 ns

 UVLO function

 Gate driving voltage up to 26 V

 Negative gate driving

 On-board isolated DC-DC converters to supply

gate drivers, fed by VAUX = 5 V

 VDD logic supply local 3.3 V or VAUX

 3.3 V, 5 V TTL/CMOS inputs with hysteresis

 Easy jumper selection of driving voltage

configuration:

– +15/0 V; +15/-3 V; +19/0 V; +19/-3 V

 Temperature shutdown protection

Description

The STGAP2SM is an isolated single gate driver.

The gate driver is characterized by 4 A current

capability and rail-to-rail outputs, making the

device suitable also for high power inverter

applications such as motor drivers in industrial

applications equipped with MOSFET/IGBT/SiC

power switch.

Two different variants are available: one with

separated source and sink outputs, the other with

single output pin and a dedicated pin for Miller

clamp function. The EVALSTGAP2S is suitable

for both output configuration variants.

The device integrates protection functions: UVLO

and thermal shutdown are included to simplify the

design of high reliability systems. Dual input pins

allow choosing the control signal polarity and also

implementing HW interlocking protection in order

to avoid cross-conduction in case of controller

malfunction.

The device allows the implementation of negative

gate driving, and the on-board isolated DC-DC

converters allow working with optimized driving

voltage for MOSFET/IGBT or SiC.

The EVALSTGAP2S board allows evaluating all

the STGAP2SM features while driving a half-

bridge power stage with voltage rating up to 1700

V in TO-220 or TO-247 package.

The board facilitates the selection and

modification of the values of relevant external

components in order to ease driver's performance

evaluation under different applicative conditions

and fine pre-tuning of final application

components.

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