Smart Power Switch Controllers

UT05PFD103 5V Smart Power Switch Controller

The UT05PFD103 Smart Power Switch Controller combines power-MOSFET control with load-side inrush limiting and eFuse protection.
Power-switch supply range
4.5 V to 5.5 V
Package
47-lead dual flatpack
Type
Smart Power Switch Controllers
The UT05PFD103 is an intelligent PowerMOSFET controller with load-side inrush current limiting and 4.5V – 5.5V eFUSE protection of current faults
Specifications

Specifications

Product specifications
Part Number UT05PFD103
Flight Grade QML-Q, QML-V
LET (MeV·cm²/mg) ≤100
TID krad(Si) 300
Voltage (V) +4.5V To +5.5V
Package 47-Lead FP

Technical specifications

Specification Value Notes
Power-switch supply range 4.5 V to 5.5 V
Telemetry resolution 10 bits Optional voltage and current telemetry over PMBus.
Package 47-lead dual flatpack

Values are subject to the conditions and ordering options in the referenced product documentation.

Product overview

The UT05PFD103 Smart Power Switch Controller combines power-MOSFET control with load-side inrush limiting and eFuse protection. It monitors forward current and line/load voltages to detect overloads and short circuits. An optional ideal-diode OR FET supports reverse-current protection and redundant-power architectures. Optional PMBus telemetry reports input voltage, output voltage and current, while discrete controls support operation without relying on digital telemetry. Latching, retriggerable and pulsing control modes provide options for fault response. The controller helps manage the external power FET within its safe operating area using the application circuitry described in the datasheet.

Documentation

Documentation

Technical documents and resources

For product questions or additional technical information, contact Frontgrade https://www.frontgrade.com/contact-us-form.

More about this product

Product features

  • Inrush-current limiting
  • Forward-overcurrent and short-circuit protection
  • Optional reverse-current protection with OR FET
  • Line/load voltage monitoring
  • Optional PMBus telemetry

Configure fault response

External components set current limits and timing. Select latching, retriggerable or pulsing behavior and evaluate the external power FET’s safe operating area using the datasheet application guidance.

Applications

  • 5 V power distribution
  • SpaceVPX SpaceUM VS3 switching
  • Subsystem input switching
  • 5 V uninterruptible power supplies
  • SEL fault protection
Product support

Discuss your application

Contact Frontgrade to discuss UT05PFD103 5V Smart Power Switch Controller and the requirements of your application.