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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
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