The Mornsun A_S-1WR2 & B_LS-1WR2 series are 1 W isolated, unregulated DC‑DC converters with up to 81 % efficiency and 1500 VDC isolation.
The A_S-1WR2 & B_LS-1WR2 series provide miniature, high‑density DC‑DC conversion with fixed input, isolated and unregulated dual or single outputs. They feature up to 81 % efficiency, 1500 VDC isolation, and operate from –40 °C to +105 °C, making them suitable for digital circuits, low‑frequency analog circuits, and IGBT driver applications where isolation is required but regulation is not critical.
Key specifications include 1 W output power, input voltage ranges from 5 V to 30 V, and continuous short‑circuit protection with automatic recovery. The datasheet also details recommended external circuits, typical performance curves, mechanical dimensions, and design considerations such as minimum load requirements and overload protection methods.
| Efficiency | up to 81 % |
|---|---|
| Isolation Voltage | 1500 VDC |
| Operating Temperature Range | -40 °C ~ +105 °C |
| Output Power | 1 W |
| Input Voltage Range | 5 V – 30 VDC |
The converters are rated for 1500 VDC isolation voltage.
The series can achieve up to 81 % efficiency.
Use Vin 5 V/12 V with C1 4.7 µF/50 V and LDM 6.8 µH; for 15 V/24 V use the same C1 and LDM values.
The minimum output load should be at least 10 % of full load.