Dual Output 15W Universal Input Flyback Evaluation Board
The RTKA223881DE0000BU is a dual output 15W universal input flyback evaluation board that features the RAA223881 700V regulator. The board demonstrates a low-cost,...
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Overview
Description
The RAA223881, 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 15W 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 RAA223881 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 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
- Large appliances
- Air conditioners
- Industry equipment
- Auxiliary power supply for TV, set-top box, or LCD/LED monitor
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 2.47 MB | |
| Materials Composition Declaration | PDF 98 KB | |
| Materials Composition Declaration | XML 7 KB | |
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Design & Development
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
RAA2238814GSP#AA1 Active Samples Available |
PDIP | Tube | Not Applicable | Get Samples, |
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