PMP11373.2, Factory Automation (FA) Isolated Sensor Reference Design

PMP11373.2, Factory Automation (FA) Isolated Sensor Reference Design. The 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 secondary are rectified and regulated to 5V and 15V outputs using TPS7A4901 linear regulators, which supply 0.15A each. This method allows the Optocoupler to be eliminated, reducing cost and complexity. Design options allow single or dual outputs per transformer