Overview
Description
The RAA223182 is an off-line Flyback regulator with a 1000V integrated MOSFET, designed for high input voltage applications such as 3-phase electric meter power supplies and other generally isolated power supplies. The RAA223182 can deliver up to 11W from the universal 3-phase input voltage.
Features
- Flyback regulator with 1000V 9Ω MOSFET
- Frequency doubling for heavy load operation (21W and above), for a programmable duration (maximum time depends on thermal capability)
- Fault-tolerant input overvoltage protection
- Valley switching to reduce switching losses
- Programmable constant frequency PWM operation
- Burst mode operation at light load
- Protection features: short-circuit protection (SCP), overload protection (OLP), input undervoltage lockout (VinUV), input OVP, VCC overvoltage protection (VccOV), VCC undervoltage lockout (VccUV) and over-temperature protection (OTP).
Comparison
Applications
Documentation
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Type | Title | Date |
Datasheet | PDF 2.64 MB | |
Application Note | PDF 509 KB | |
Application Note | PDF 397 KB | |
3 items
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Design & Development
Boards & Kits
Dual Output 11W 3-Phase Input Flyback Demonstration Board
The RTKA223182DR0000BU dual output 11W universal input flyback demonstration board featuring the RAA223182 1000V regulator demonstrates a low-cost, high-performance isolated AC/DC solution from a universal 3-phase input of 121VAC to 500VAC, to 12.5V and 5V outputs for smart meter applications.
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Product Options
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