UCC27325 ACTIVE 4-A/4-A dual gate driver inverting, noN INVERTING input and hysteric logic

UCC27325: Dual 4A high-speed MOSFET driver with one inverting and one non-inverting channel. High efficiency, fast switching for power supplies.

Description

The UCC27325 is a high-performance, dual-channel MOSFET driver designed to deliver high-speed switching and power efficiency. What makes the UCC27325 unique is its configuration: it features one inverting and one non-inverting driver in a single compact package. It is engineered to provide a powerful 4A peak current, specifically targeting the "Miller Plateau" region to ensure MOSFETs turn on and off rapidly. Using a specialized Bi-CMOS output architecture, it remains efficient even at low supply voltages and offers excellent noise immunity, making it a reliable choice for modern power management systems.

Features

• Dual Channels: Includes one inverting and one non-inverting driver for flexible circuit design.

• High Peak Current: Provides ±4 A drive current to handle heavy loads and fast switching.

• Fast Performance: Rapid rise and fall times (20ns/15ns) to minimize energy loss.

• Wide Voltage Range: Operates reliably with a supply voltage between 4.5V and 15V.

• Smart Inputs: TTL/CMOS compatible inputs that are independent of the supply voltage.

• High Reliability: Built-in hysteresis for excellent noise immunity.

• Thermal Protection: Available in SOIC-8 and PowerPAD packages for better heat dissipation.

Applications

• Switch-Mode Power Supplies (SMPS): Enhancing efficiency in AC-DC and DC-DC converters.

• Motor Control: Precise driving for small to medium-sized motors.

• Solar Inverters: Managing power conversion in renewable energy systems.

• Uninterruptible Power Supplies (UPS): Ensuring fast switching during power transitions.

• Pulse Transformer Drivers: Driving gate-drive transformers efficiently.

Parameters

• Supply Voltage (VDD): 4.5 V to 15 V

• Peak Output Current: 4.0 A

• Rise Time: 20 ns (at 1.8 nF load)

• Fall Time: 15 ns (at 1.8 nF load)

• Propagation Delay: 25 ns to 35 ns

• Operating Temperature: –40°C to +125°C

• Package Options: SOIC-8, MSOP-8 PowerPAD

External Links

• UCC27325 Official Datasheet (PDF)

• Texas Instruments Product Page

• Application Note: Fundamentals of MOSFET Gate Drive Circuits