TD351 is an advanced IGBT and power MOSFET driver that includes control and protection functions to allow the design of high reliability systems. The innovative active Miller clamp function avoids the need for negative gate drive in most applications and allows the use of a simple bootstrap supply for the high side driver. TD351 includes a two-level turn-off feature with adjustable level and delay. This function protects against excessive overvoltage at turn-off in case of overcurrent or short-circuit condition. Same delay is applied at turn-on to prevent pulse width distortion. TD351 is compatible with both pulse transformer and optocoupler signals.
The TD351 is an advanced gate driver for IGBT and power MOSFET devices. It integrates control and protection functions such as an active Miller clamp, two‑level turn‑off with adjustable delay, UVLO, and 2 kV ESD protection, and works with both pulse‑transformer and optocoupler inputs.
The document provides pin descriptions, electrical characteristics, timing diagrams, mechanical package data for DIP‑8 and SO‑8 variants, and typical performance curves. It also includes application examples and revision history for the November 2004 release.
| Maximum supply voltage (VH‑VL) | 28 V |
|---|---|
| Input turn‑on threshold (Vton) | 0.8 – 1.0 V |
| Input turn‑off threshold (Vtoff) | 4.0 – 4.2 V |
| Output sink current (Isink) | 1.0 – 1.7 A (typical at 25 °C) |
| Output source current (Isrc) | 0.75 – 1.3 A (typical at 25 °C) |
| Storage temperature range | -55 °C to 150 °C |
| Maximum junction temperature | 150 °C |
| ESD protection | 2 kV |
The driver can operate with a maximum supply voltage of 28 V (VH‑VL).
It can sink up to 1.7 A typical at 25 °C (minimum 1.0 A).
The device is protected against electrostatic discharge up to 2 kV.
It is rated for storage from –55 °C to 150 °C.