Overview
The STGAP2SMTR, produced by STMicroelectronics, is a galvanically isolated 4 A single gate driver. This device provides galvanic isolation between the gate driving channel and the low voltage control and interface circuitry, making it suitable for mid and high power applications such as power conversion and motor driver inverters in industrial settings.
The STGAP2SMTR features rail-to-rail outputs and is available in two different configurations: one with separated output pins for independent optimization of turn-on and turn-off using dedicated gate resistors, and another with a single output pin and Miller CLAMP function to prevent gate spikes during fast commutations in half-bridge topologies.
The device integrates several protection functions, including undervoltage lockout (UVLO) and thermal shutdown, to facilitate the design of highly reliable systems. It also includes dual input pins for selecting signal polarity and implementing hardware interlocking protection to avoid cross-conduction in case of controller malfunction.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Driver Current Capability | 4 A sink/source @ 25°C | A |
| dV/dt Transient Immunity | ±100 V/ns | V/ns |
| Input-Output Propagation Delay | < 80 ns | ns |
| Gate Driving Voltage | Up to 26 V | V |
| Input Voltage Levels | 3.3 V, 5 V TTL/CMOS with hysteresis | V |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | SO-8 | - |
| RoHS Compliance | Ecopack2 | - |
Key Features
- High voltage rail up to 1700 V
- Separate sink and source options for easy gate driving configuration
- 4 A Miller CLAMP dedicated pin option
- UVLO function
- Temperature shutdown protection
- Standby function to reduce idle power consumption
- Dual input pins for signal polarity control and hardware interlocking protection
- Narrow body SO-8 package
- UL 1577 recognized
Applications
- Motor drivers for home appliances, factory automation, industrial drives, and fans
- 600/1200 V inverters
- Battery chargers
- Induction heating
- Welding
- UPS (Uninterruptible Power Supplies)
- Power supply units
- DC-DC converters
- Power factor correction
Q & A
- What is the primary function of the STGAP2SMTR?
The STGAP2SMTR is a galvanically isolated 4 A single gate driver, providing isolation between the gate driving channel and the low voltage control and interface circuitry.
- What are the key configurations of the STGAP2SMTR?
The device is available in two configurations: one with separated output pins and another with a single output pin and Miller CLAMP function.
- What is the driver current capability of the STGAP2SMTR?
The driver current capability is 4 A sink/source at 25°C.
- What is the input-output propagation delay of the STGAP2SMTR?
The input-output propagation delay is less than 80 ns.
- What protection functions does the STGAP2SMTR integrate?
The device integrates undervoltage lockout (UVLO) and thermal shutdown protection functions.
- What is the purpose of the dual input pins on the STGAP2SMTR?
The dual input pins allow for the selection of signal polarity control and the implementation of hardware interlocking protection to avoid cross-conduction in case of controller malfunction.
- What is the operating temperature range of the STGAP2SMTR?
The operating temperature range is -40°C to 125°C.
- What package type is the STGAP2SMTR available in?
The device is available in a narrow body SO-8 package.
- Is the STGAP2SMTR RoHS compliant?
Yes, the STGAP2SMTR is RoHS compliant with an Ecopack2 rating.
- What are some typical applications of the STGAP2SMTR?
Typical applications include motor drivers, 600/1200 V inverters, battery chargers, induction heating, welding, UPS, power supply units, DC-DC converters, and power factor correction.
