DESCRIPTION

The TK75050 is a non-inverting buffer to drive high power insulated gate transistors (e.g., MOSFETs and IGBTs). The output can source or sink 2 A into a 10,000 pF equivalent load. The IC features built-in cycle-by-cycle current limiting. Its Undervoltage Lockout (UVLO) circuit is combined with a First Pulse Wake-up Feature*. The chip has thermal overload protection. Using the IC in the Gate Charge Recovery* application, the switching spike developed across the current sense resistor practically becomes negligible. Due to its low standby current and first-pulse wake-up feature, the device can be used in selfbiased power supplies.

FEATURES

■ 20 ns Rise and Fall Times into 1000 pF

■ 550 µA Standby Current Consumption

■ Undervoltage Lockout Combined with First Pulse Wake-Up Feature *

■ Cycle-by-Cycle Current Limiting

■ Current Sense Voltage Spike Cancellation when Used with Gate Charge Recovery Circuit *

■ Thermal Overload Protection

■ TTL/CMOS Compatible Input

APPLICATIONS

■ Driving of Power MOSFETs and IGBTs

■ Switch Mode Power Supplies

■ Step Motor Drivers

■ Solenoid Drivers