TD351IDT STMicroelectronics

TD351 Advanced IGBT/MOSFET driver Features 1.7 A sink / 1.3 A source (typ) current capability Active Miller clamp feature Two-level turn-off with adjustable level and delay Input compatible with pulse transformer or SO-8 optocoupler UVLO protection The TD351 is compatible with both pulse transformer and optocoupler signals. 2 kV ESD protection Applications 1200 V 3-phase inverters Motor control systems UPS Description This device is an advanced gate driver for IGBT and power MOSFETs. Control and protection functions are included and allow the design of high reliability systems. The innovative active Miller clamp function eliminates the need for negative gate drive in most applications and allows the use of a simple bootstrap supply for the high side driver. The 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 conditions. The same delay is applied at turn-on to prevent pulse width distortion. Table 1. Device summary Order codes Temperature range Package Packaging TD351ID Tube -40C, +125C SO-8 TD351IDT Tape and reel June 2011 Doc ID 10977 Rev 2 1/19 www.st.com 19Contents TD351 Contents 1 Block diagram 3 2 Pin connections . 4 3 Absolute maximum ratings . 5 4 Electrical characteristics . 6 5 Functional description . 8 5.1 Input stage 8 5.2 Voltage reference . 8 5.3 Active Miller clamp 8 5.4 Two level turn-off 8 5.5 Minimum input ON-time . 9 5.6 Output stage . 9 5.7 Undervoltage protection 9 6 Timing diagrams . 12 7 Typical performance curves 14 8 Application diagrams . 16 9 Package mechanical data . 17 10 Revision history . 18 2/19 Doc ID 10977 Rev 2