TIISO5451QDWRQ1

Overview

The ISO5451QDWRQ1 is an automotive-qualified, isolated single-channel gate driver designed to drive IGBTs and MOSFETs with high transient immunity. It features 5700Vrms reinforced isolation and provides integrated protection features like desaturation detection and an active Miller clamp. This device is specifically engineered to handle the high-voltage and high-noise environments found in traction inverters and industrial motor drives.

Why Choose This Part

The component offers exceptional reliability with a minimum CMTI of 50-kV/us and 10000-Vpk surge withstand voltage. It reduces system complexity by integrating desaturation fault signaling (FLT), under-voltage lockout (UVLO) with RDY indication, and an active 2-A Miller clamp to prevent parasitic turn-on in high dV/dt environments.

Applications

Getting Started

When designing with the ISO5451QDWRQ1, ensure the VCC2 supply is between 15V and 30V for proper gate drive levels, while VCC1 supports 3V to 5.5V logic. Engineers should refer to the ISO5451EVM evaluation module to test switching performance and protection timing. Proper PCB layout is critical, requiring adequate creepage and clearance distances under the 16-SOIC package to maintain the 5700Vrms isolation rating.

ISO5451 Family

Comparing specs that differ across variants. The current part is highlighted.