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Renesas RA223021 | Demoboard RTKA223021DE0000BU
700V AC/DC Buck Regulator with Ultra-Low Standby Power
Overview
| Topology | Flyback Converter |
| Input voltage | 85-265 V |
| Output 1 | 12 V / 1 A |
| IC revision | 1.1 |
Description
The RAA223021 evaluation board(RTKA223021DE0010BU) is a high voltage flyback converter that is designed to demonstrate a low-cost high performance isolated AC/DC conversion from a universal input of 85VAC to 265VAC, to a 12V output with the output current up to 1A.The board has a built-in overcurrent, short-circuit,input brownout and over-temperature protections, and is designed on a double side Printed Circuit Board (PCB) with a full-wave input rectification. It is precompliant with the conducted EMI requirements by EN55022/CISPR 22. The RTKA223021DE0010BU uses the RAA223021 SOIC-7 packaged IC.
Features
- Ultra-low standby power (<20mW)
- No audible noise
- Low quiescent current (<80µA)
- Output voltage as low as 3.3V
- Low EMI with frequency dithering
- 7 Ld SOIC package ▪ Programmable PFM allows optimization of COUT for various standby power requirements
- Protection features: Short-Circuit Protection (SCP), Overload Protection (OLP), Overvoltage Protection (OVP), open feedback protection, and Over-Temperature Protection (OTP).
Typical applications
- Home appliances, Home automation,IoT,and sensors, Metering and Industry control.
- Bias power
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Version | C | VR (V (DC)) | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | DF (%) | Pitch (mm) | Ø D (mm) | L (mm) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7447462221 | SPEC | 8 files | WE-TI Radial Leaded Wire Wound Inductor | 220 | 0.5 | 0.5 | 1.2 | 4.8 | Heat Shrinking Tube | – | – | – | – | – | – | – | – | – | 6 | – | ||
 | 860241378003 | SPEC | 6 files | WCAP-AT1H Aluminum Electrolytic Capacitors | – | – | – | – | – | – | 22 µF | 400 | 10000 | -25 °C up to +105 °C | 557 | 452 | 20 | 5 | 13 | 20 | Ammopack |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7447462221 | SPEC | |
| 860241378003 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Version | C | VR (V (DC)) | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | DF (%) | Pitch (mm) | Ø D (mm) | L (mm) | Packaging | Samples |
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