Factory Automation (FA) Isolated Sensor Reference Design
Description
Dual isolated half-bridge converters are implemented using a single DRV8801 motor driver controller. The DRV8801 controller operates from a 24Vdc input and at a fixed 50% duty: generated using the low cost LMC555 timer. Transformer secondaries are rectified and regulated to 5V and 15V outputs using TPS7A4901 linear regulators: which supply 0.15A each. This method allows the opto-coupler to be eliminated: reducing cost and complexity. Design options allow single or dual outputs per transformer.
Features
- Isolated (3KV) outputs without opto-coupler feedbackOne DRV8801 motor drive controller can drive two transformersLow cost solutionLow noise outputs
Applications
Product Categories
- Power management
| Download the bill of materials for PMP11373 | Download |
Test Data
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Download the test file for PMP11373| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| PMP11373 Gerber | 30 Mar 2016 | ZIP | 334 | |
| PMP11373 Altium | 30 Mar 2016 | ZIP | 33833 | |
| PMP11373 PCB | 30 Mar 2016 | 525 | ||
| PMP11373 Assembly Drawing | 30 Mar 2016 | 104 | ||
| PMP11373 BOM | 30 Mar 2016 | 123 | ||
| PMP11373 Schematic | 30 Mar 2016 | 182 |