Automotive galvanically isolated single gate driver

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.

Key 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

Circuit Diagram



Technical Documentation

Product Specifications
Description Version Size
DS11652 DS11652: Automotive galvanically isolated advanced single gate driver 3.0 2 MB

Publications and Collaterals

Description Version Size
STGAP1AS - Breakthrough in robustness and flexibility 1.0 1 MB
Description Version Size
Brochure Power management guide 05.2016 3 MB

Tools and Software

Embedded Software
Evaluation Tool Software
Evaluation Tools
Solution Evaluation Tools
Support & Community

Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Thermal Resistance(junction To Ambient) (nom) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STGAP1AS SO-24 Tube -40 125 - Active 3.092 1000 NEC EAR99 - MORE INFO No availability reported, please contact our Sales office
STGAP1ASTR SO-24 Tape And Reel -40 125 - Active 3.092 1000 NEC EAR99 - MORE INFO DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STGAP1AS ActiveSO-24AutomotiveEcopack2 0 0
STGAP1ASTR ActiveSO-24AutomotiveEcopack2 0 0

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.