3- to 7-VIN, Space-grade point-of-load (POL) reference design with redundant eFuse inputs for OCP
TIDA-070001
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Key Document
- 3- to 7-VIN, Space-Grade POL Reference Design with Redundant eFuse Inputs (Rev. A)
(PDF 3419 KB)
30 Jul 2019
Description
Redundancy is often employed in spacecraft applications to enhance reliability, this reference design shows how redundancy can be implemented at the input of a Point-of-Load (POL) supply using two TPS7H2201-SP radiation hardened eFuse load switches. Using two load switches allows for a primary and redundant voltage to be supplied to the rad hardened POL step-down converter TPS50601A-SP, Applications the load switch provides an adjustable over-current protection (OCP) limit for protection along with a current sense ouput pin allows for monitoring and protection, the load switch also features adjustable over-voltage protection (OVP). The POL converter also has a current limit providing additional protection to shorts.
Features
- Adjustable over-current protection (OCP) limit
- Adjustable over-voltage (OVP) limit
- Redundant inputs
- Configurable soft start
- Enable/disable functionality
See the Important Notice and Disclaimer covering reference designs and other TI resources.