Document
STGAP1AS
Automotive galvanically isolated advanced single gate driver
SO24W
Features
Qualified for automotive applications according to AEC-Q100
High voltage rail up to 1500 V Driver current capability: 5 A sink/source
current at 25 °C dV/dt transient immunity ± 50 V/ns in full
temperature range Overall input/output propagation delay: 100 ns Separate sink and source for easy gate driving
configuration Negative gate drive ability Active Miller clamp Desaturation detection SENSE input VCE active clamping Output 2-level turn-off Diagnostic status output UVLO and OVLO functions Programmable input deglitch filter Asynchronous stop command Programmable deadtime, with violation error SPI interface for parameters programming Temperature warning and shutdown protection Self-diagnostic routines for protection features Full effective fault protection UL 1577 recognized
Datasheet - production data
Applications
600/1200 V inverters
Inverters for EV\HEV
EV charging stations
Industrial drives
UPS equipment
DC/DC converters
Solar inverters
Description
The STGAP1AS is a galvanically isolated single gate driver for N-channel MOSFETs and IGBTs with advanced protection, configuration and diagnostic features. The architecture of the STGAP1AS isolates the channel from the control and the low voltage interface circuitry through true galvanic isolation. The gate driver is characterized by 5 A capability, making the device also suitable for high power inverter applications such as motor drivers in hybrid and electric vehicles and in industrial drives. The output driver section provides a rail-to-rail output with the possibility to use a negative gate driver supply. The input to output propagation delay results contained within 100 ns, providing high PWM control accuracy. Protection functions such as the Miller clamp, desaturation detection, dedicated sense pin for overcurrent detection, output 2-level turn-off, VCE overvoltage protection, UVLO and OVLO are included to easily design high reliability systems. Open drain diagnostic outputs are present and detailed device conditions can be monitored through the SPI. Each function's parameter can be programmed via the SPI, making the device very flexible and allowing it to fit in a wide range of applications. Separate sink and source outputs provide high flexibility and bill of material reduction for external components.
March 2018
This is information on a product in full production.
DocID029344 Rev 4
1/70
www.st.com
Contents
Contents
STGAP1AS
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.3 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 AC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 DC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6 Logic supply management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1 Low voltage section voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.2 High voltage section voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 6.3 Power-up, power-down and “safe state” . . . . . . . . . . . . . . . . . . . . . . . . . 23 6.4 Standby function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.1 Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 7.2 Deadtime and interlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 7.3 Hardware RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7.4 Power supply UVLO and OVLO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7.5 Thermal warning and shutdown protection . . . . . . . . . . . . . . . . . . . . . . . 30 7.6 Desaturation protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 7.7 VCE active clamping protection . . . ..