This reference design demonstrates a cost focused approach of an isolated power supplies with low current capability. The design consists of three designs of three different topologies. All three design options are based on a high voltage comparator TLV1805-Q1 which works as a free-running oscillator and a driver. All three are unregulated, and the ouptut voltage directly depends on the input voltage.
- Automotive voltage input allows direct connection to car battery (Vin_max=40V)
- Easy customizable for various applications
- Low BOM cost
- Tiny PCB area