描述 Description

The UCC27322 delivers 9 A of peak drive current in an industry standard pinout. These drivers can drive the largest of MOSFETs for systems requiring extreme Miller current due to high dV/dt transitions. This eliminates additional external circuits and can replace multiple components to reduce space, design complexity and assembly cost. Using a design that inherently minimizes shoot-through current, the outputs of these can provide high gate drive current where it is most needed at the Miller plateau region during the MOSFET switching transition. A unique hybrid output stage paralleling bipolar and MOSFET transistors (TrueDrive) allows efficient current delivery at low supply voltages. With this drive architecture, UCC27322 can be used in industry standard 6-A, 9-A and many 12-A driver applications. Latch up and ESD protection circuits are also included. Finally, the UCC27322 provides an enable (ENBL) function to have better control of the operation of the driver applications. ENBL is implemented on pin 3 which was previously left unused in the industry standard pin-out. It is internally pulled up to VDD for active high logic and can be left open for standard operation.

特性 Features

? Industry-Standard Pinout With Addition of Enable Function
? High-Peak Current Drive Capability of ±9 A at the Miller Plateau Region Using TrueDrive
? Efficient Constant Current Sourcing Using a Unique Bipolar and CMOS Output Stage
? TTL-/CMOS-Compatible Inputs Independent of Supply Voltage
? 20-ns Typical Rise and 15-ns Typical Fall Times With 10-nF Load
? Typical Propagation Delay Times of 25 ns With Input Falling and 35 ns With Input Rising
? 4-V to 15-V Supply Voltage
? Pb-Free Finish (NiPdAu)
? APPLICATIONS
? Controlled Baseline
? One Assembly/Test Site
? One Fabrication Site
? Rated From –55°C to 125°C
? Extended Product Life Cycle
? Extended Product-Change Notification
? Product Traceability

? APPLICATIONS
? Switch-Mode Power Supplies
? DC/DC Converters
? Motor Controllers
? Line Drivers
? Class D Switching Amplifiers
? Pulse Transformer Driver