Overview
Description
The RAA223882, an off-line flyback regulator with an integrated 700V power MOSFET, provides a cost-effective solution for high-input voltage applications such as appliances, air conditioners, and general-purpose isolated power supplies with 30W output. The flyback regulator operates with a constant switching frequency of 65kHz and employs current mode control. At light loads, it operates in burst mode to reduce power consumption and uses secondary-side feedback to provide excellent output voltage regulation. The RAA223882 features an integrated high-voltage (HV) startup for a low system-component count. It also provides frequency dithering to simplify EMI filter design. The device comes in a 7 Ld PDIP package.
Features
- Integrated with 700V 1.5Ω MOSFET
- Constant frequency PWM operation with current mode control
- Burst mode operation at light load
- Protections:
- Short-circuit protection (SCP)
- Overload protection (OLP)
- Input undervoltage protection (VINUV)
- VCC overvoltage protection (VCCOV)
- Output open-loop protection (OLP)
- Short-winding protection (SWP)
- Over-temperature protection (OTP)
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 2.42 MB | |
| Materials Composition Declaration | PDF 98 KB | |
| Materials Composition Declaration | XML 6 KB | |
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Design & Development
Boards & Kits
Evaluation
RTKA223882DE0000BU
Active
Dual Output 25W Universal Input Flyback Evaluation Board
The RTKA223882DE0000BU is a dual output 25W universal input flyback evaluation board that features the RAA223882 700V regulator. The board demonstrates a low-cost, high-performance isolated AC/DC solution from a universal input of 85VAC to 265VAC for 12V and 5.9V outputs. The RTKA223882DE0000BU...
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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.
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