Overview
The TD350E device, produced by STMicroelectronics, is an advanced gate driver designed for IGBTs (Insulated Gate Bipolar Transistors) and power MOSFETs. This device integrates comprehensive control and protection functions, enabling the design of high-reliability systems. The TD350E features an innovative active Miller clamp function, which eliminates the need for negative gate drive in most applications and allows the use of a simple bootstrap supply for the high side driver. Additionally, it includes a two-level turn-off feature with adjustable level and delay, protecting against excessive overvoltage during turn-off in case of overcurrent or short-circuit conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Order Code | TD350E, TD350ETR | |
| Temperature Range | -40 to +125 °C | °C |
| Package | SO-14 | |
| Packaging | Tube, Tape and Reel | |
| Maximum Supply Voltage (VH - VL) | 28 | V |
| Maximum VH Voltage vs. GND | 28 | V |
| Minimum VL Voltage vs. GND | -12 | V |
| Gate Drive Current (Source/Sink) | 1.5 A / 2.3 A (typ.) | A |
| ESD Protection (HBM) | 2 kV | kV |
| Maximum Junction Temperature | 150 | °C |
| Power Dissipation | 500 mW | mW |
Key Features
- 1.5 A source / 2.3 A sink (typ.) gate drive
- Active Miller clamp feature
- Two-level turn-off with adjustable level and delay
- Desaturation detection
- Fault status output
- Negative gate drive capability
- Input compatible with pulse transformer or optocoupler
- Separate sink and source outputs for easy gate driving
- UVLO protection
- 2 kV ESD protection (HBM)
Applications
- 1200 V, 3-phase inverters
- Motor control
- UPS systems
Q & A
- What is the TD350E device used for?
The TD350E is an advanced gate driver for IGBTs and power MOSFETs, designed to integrate control and protection functions for high-reliability systems.
- What is the active Miller clamp feature in the TD350E?
The active Miller clamp feature eliminates the need for negative gate drive in most applications and allows the use of a simple bootstrap supply for the high side driver.
- What is the two-level turn-off feature in the TD350E?
The two-level turn-off feature with adjustable level and delay protects against excessive overvoltage at turn-off in case of overcurrent or short-circuit conditions.
- What is desaturation protection in the TD350E?
Desaturation protection ensures the protection of the IGBT in the event of overcurrent by driving the output low and activating the FAULT output when the DESAT voltage exceeds 7 V.
- What is the fault status output in the TD350E?
The fault status output signals a fault event (desaturation, UVLO) to a controller and is designed to drive an optocoupler.
- What is UVLO protection in the TD350E?
UVLO (Undervoltage Lockout) protection detects low VH supply voltage and protects the application during startup or fault situations by opening the OUTH pin and driving the OUTL pin low.
- What are the key specifications of the TD350E package?
The TD350E comes in an SO-14 package with a temperature range of -40 to +125 °C and is available in tube and tape and reel packaging.
- What is the maximum supply voltage for the TD350E?
The maximum supply voltage (VH - VL) is 28 V.
- What is the ESD protection level of the TD350E?
The TD350E has 2 kV ESD protection (HBM).
- In what applications is the TD350E typically used?
The TD350E is typically used in 1200 V, 3-phase inverters, motor control, and UPS systems.
