Smart Power Switch Controllers
UT36PFD103 36V Smart Power Switch Controller
- Power-switch supply range
- 8 V to 36 V
- Package
- 47-lead dual flatpack
- Type
- Smart Power Switch Controllers
Specifications
| Part Number | UT36PFD103 |
|---|---|
| Flight Grade | QML-Q, QML-V |
| LET (MeV·cm²/mg) | ≤100 |
| TID krad(Si) | 300 |
| Voltage (V) | +8V To +36V |
| Package | 47-Lead FP |
Technical specifications
| Specification | Value | Notes |
|---|---|---|
| Power-switch supply range | 8 V to 36 V | |
| Telemetry resolution | 10 bits | Optional voltage and current telemetry over PMBus. |
| Package | 47-lead dual flatpack | |
| Total ionizing dose | 100 krad(Si) | Only devices procured with TID assurance; post-irradiation performance guaranteed at 25 °C, effective dose rate 1 rad(Si)/s, to the procured level. |
| Digital/analog low-voltage supply | 3.0 to 3.6 V | Recommended operating conditions; referenced to AGND. |
Values are subject to the conditions and ordering options in the referenced product documentation.
Product overview
The UT36PFD103 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
Technical documents and resources
For product questions or additional technical information, contact Frontgrade https://www.frontgrade.com/contact-us-form.
Datasheet
Product Brief
Application Notes
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.
Plan restart control after faults
For a latched short-circuit fault, restart requires toggling a device-control pin; PMBus restart is not supported. The current datasheet also describes the retriggered-configuration workaround for PMBus control after overcurrent faults.
Applications
- Power distribution with short-circuit protection
- SpaceVPX SpaceUM VS1 switching
- Uninterruptible power supplies
- Launch-vehicle long-harness splicing
- Thruster and waveguide actuation control
Discuss your application
Contact Frontgrade to discuss UT36PFD103 36V Smart Power Switch Controller and the requirements of your application.