UCD7230A - Texas Instruments

UCD7230A Digital Control Compatible Synchronous Buck Gate Driver

The UCD7230A is one in the UCD7k family of digital control compatible drivers for applications utilizing digital control techniques or applications requiring fast local peak current limit protection. The UCD7230A is a MOSFET gate driver specifically designed for synchronous buck applications. It is ideally suited to provide the bridge between digital control.

Features

1
•2 Input from Digital Controller Sets Operating Frequency and Duty Cycle
• Up to 2-MHz Switching Frequency
• Dual Current Limit Protection with Independently Adjustable Thresholds
• Fast Current Sense Circuit with Adjustable Blanking Interval Prevents Catastrophic Current Levels
• Digital Output Current Limit Flag
• Low Offset, Gain of 48, Differential Current Sense Amplifier
• 3.3-V, 10-mA Internal Regulator
• Dual TrueDrive™ High-Current Drivers
• 10-ns Typical Rise/Fall Times with 2.2-nF Loads
• 4.5-V to 15.5-V Supply Voltage Range APPLICATIONS
• Digitally-Controlled Synchronous-Buck Pow.