Texas Instruments UCD7231
The UCD7231 high current driver is specifically designed for digitally-controlled, point-of-load, synchronous buck switching power supplies. The MOSFET gates are driven to +6 V by an internally regulated VGG supply. The internal VGG regulator can be disabled to permit the user to supply their own gate drive voltage.| Part No. | UCD7231 |
|---|---|
| Datasheet | UCD7231 Download |
| Manufacturer |  Texas Instruments |
| Description | Digital Control Compatible Synchronous-Buck Gate Driver |
| Buy | Stock & Price |
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 Over-Current 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 External 4.5-6.5 V Bias Supply
● Onboard Regulated Supplies for Gate Drive and Internal Circuits
● Integrated Thermal Shutdown
● Selectable Operation Modes: – PWM plus Synchronous Rectifier Enable (SRE) with Automatic Dead-Time Control – Direct High-Gate and Low-Gate Inputs for Direct FET Control
● 3-State PWM Input for Power Stage Shutdown
● UVLO Housekeeping Circuit
● Rated from –40°C to +125...
