TIDA-070001
3- to 7-VIN, Space-grade point-of-load (POL) reference design with redundant eFuse inputs for OCP
TIDA-070001
Overview
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
| Output voltage options | TIDA-070001.1 |
|---|---|
| Vin (Min) (V) | 3 |
| Vin (Max) (V) | 7 |
| Vout (Nom) (V) | 2.5 |
| Iout (Max) (A) | 6 |
| Output Power (W) | 15 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Buck- Synchronous |
Design files & products
Design files
Download ready-to-use system files to speed your design process.
Reference design overview and verified performance test data
Detailed overview of design layout for component placement
Complete listing of design components, reference designators, and manufacturers/part numbers
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Detailed schematic diagram for design layout and components
Products
Includes TI products in the design and potential alternatives.
TPS50601A-SP — Radiation-hardened QMLV, 3-V to 7-V input, 6-A synchronous step-down converter
TPS7H2201-SP — Radiation-hardened, QMLV and QMLP 1.5-V to 7-V input 6-A eFuse
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Technical documentation
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Design guide | 3- to 7-VIN, Space-Grade POL Reference Design with Redundant eFuse Inputs (Rev. A) | Jul 30, 2019 |
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