UCD7232 - Texas Instruments

UCD7232 Digital Control Compatible Synchronous-Buck Gate Driver

The UCD7232 high current driver is specifically designed for digitally-controlled, point-of-load, synchronous buck switching power supplies. Two driver circuits provide high charge and discharge current for the high-side NMOS switch and the low-side NMOS synchronous rectifier in a synchronous buck circuit. The MOSFET gates are driven by an internally regulat.

Features

1
• Dual High Current Drivers.
• Full Compatibility with TI Fusion Digital Power Supply Controllers, such as UCD91xx and UCD92xx Families
• Operational to 2 MHz Switching Frequency
• High-Side FET and Output Current Limit Protection with Independently Adjustable Thresholds
• Fast High-Side Overcurrent Sense Circuit with Fault Flag Output
  – Prevents Catastrophic Current Levels on a Cycle-by-Cycle Basis
• Differential High-Gain Current Sense Amplifier
• Voltage Proportional to Load Current Monitor Output
• Wide Input Voltage Range: 4.7 V to 15 V Operation to 2.2 V Input Supported with an Externa.