Power Integrations RDK-1043 50W Dual-Output Flyback Power Supply
Power Integrations RDK-1043 50W Dual-Output Flyback Power Supply is a high-efficiency, dual-output flyback power supply built around the InnoMux™ IMX2378F mixed-signal IC with PowiGaN™ technology. This design delivers a total output power of 50W, providing two isolated and regulated outputs: 12V at 1.67A and 24V at 1.25A, making it ideal for applications that require multiple voltage rails from a single power stage. Operating from a universal input range of 90VAC to 265VAC, the Power Integrations RDK-1043 achieves greater than 90% efficiency across a wide load range, reducing heat generation and improving overall reliability.
The integrated control architecture combines primary-side regulation, synchronous rectification, and multi-output management in a single IC, significantly reducing component count and board size. Additional features include comprehensive protections such as overvoltage, overcurrent, and thermal safeguards, ensuring robust and safe operation. Optimized for compact designs and cost-sensitive applications, this solution is well-suited for appliances, industrial applications, or smart meters.
Features
- Utilizes the IMX2378F with PowiGaN™ technology from the InnoMux2-EP family of ICs
- High efficiency
- Integrated control
- Accurate, independently regulated 12V and 24V outputs, ±1% voltage accuracy across line and load
- 2x Constant Voltage (CV) outputs
- 1.67A, 12V
- 1.25A, 24V
- Delivers 50W total maximum output power
- 90VAC to 265VAC universal mains input range
- Output overvoltage protection (OVP)
- Thermal protection with hysteretic shutdown
- Input voltage monitor with brown-in/-out and line overvoltage protection
- Flyback topology
- RoHS compliant
Applications
- Appliances
- Internet of Things (IoT)
- Smart homes
- Industrial
- Metering
- Multi-output power supplies
- TVs and monitors
Specifications
- 47Hz to 64Hz input frequency range, 50/60Hz typical
- Output 1
- 11.4V to 12.6V range, 12V typical
- 240mV maximum output ripple
- 0A to 1.67A current range
- Output 2
- 22.8V to 25.2V range, 24V typical
- 480mV maximum output ripple
- 0A to 1.25A current range
- Efficiency
- 90% at full load
- <0.3W maximum standby input power
- Transformer
- 3000VAC electrical strength for 1s at 60Hz
- 450µH ±5% nominal primary inductance
- 1100kHz minimum resonant frequency
- 10µH maximum primary leakage inductance
- 0°C to +40°C ambient temperature range
Videos
Related ICs
Power Integrations InnoMux2-EP Off-Line ZVS Flyback Switcher ICs
Features up to three CC outputs or one CV and one CC output for dimmable LED strings.
Power Integrations InnoMux-2 ZVS Flyback Switcher ICs
Consolidates AC-DC and downstream DC-DC conversion stages into a single chip.
Related Development Tools
Power Integrations Reference Design Kits (RDKs)
Real-world designs optimized for the most popular power conversion/supply applications.