Texas Instruments UCD7138
The UCD7138 device is a 4-A and 6-A single-channel MOSFET driver with body-diode conduction sensing and reporting and is a high performance driver that allows the Texas Instruments UCD3138A digital PWM controller to achieve advanced synchronousrectification (SR) control. The device contains a highspeed gate driver, a body-diode conduction-sensing circuit, and a turnon delay optimization circuit. The device is suitable for high-power, high-efficiency isolated converter applications where SR dead-time optimization is desired.| Part No. | UCD7138 |
|---|---|
| Datasheet | UCD7138 Download |
| Manufacturer |  Texas Instruments |
| Description | 4-A and 6-A Single-Channel Synchronous-Rectifier Driver |
| Buy | Stock & Price |
FEATURES
●1 Low-Side Gate Driver With Body-Diode Conduction Sensing● Gate Turnoff Edge Body-Diode Conduction Reporting
● Gate Turnon Edge Delay Optimization
● Works Together With the Dead-Time Compensation (DTC) Module in the UCD3138A Family of Digital Power Controllers: – Automatic or Manual Dead-Time Adjustment of Gate Turnon and Turnoff Edges – Negative Current Protection
● -150-mV Body-Diode Conduction Sensing Threshold
● Able to Sense Body Diode Conduction Times as Low as 10 ns
● 4-A Peak-Source and 6-A Peak-Sink Drive Current
● Fast Propagation Delays (14-ns Typical)
● Fast Rise and Fall Times (5-ns Typical)
● Up to 2-MHz Operating Frequency
● 4.5-V to 18-V Supply Range
● Rail-to-Rail Drive Capability
● VCC Undervoltage Lockout (UVLO)
● 6-Pin 3-mm × 3-mm WSON-6 Package 2
APPLICATIONS
● LLC Converters● Hard Switching Full-Bridge Converters
● Digital Power-Control
APPLICATIONS
3DESCRIPTION
The UCD7138 device offers asymmetrical rail-to-rail 4-A source and 6-A sink peak-current drive capability.
