Features
- Flyback regulator with 900V 10Ω MOSFET
- Single 400V input capacitor for input up to 450VAC
- Frequency doubling for heavy load operation (up to 12W), with programmable duration < 100ms
- Valley switching to reduce switching losses
- Programmable constant frequency DCM operation (recommended range 50kHz ~100kHz)
- 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)
Description
The RAA223181 is an off-line Flyback regulator with a 900V integrated MOSFET, designed for high input voltage and high reliability application of smart meter power supplies and other general isolated power supplies.
Parameters
Attributes | Value |
---|---|
Topology Characteristic | Flyback or Forward (two switch) |
Control Mode | DCM |
UVLO Rising (V) | 12 |
UVLO Falling (V) | 5.5 |
VBIAS (Max) (V) | 18 |
PWMs (#) | 1 |
Output Power Max (W) | 12 |
Switching Frequency (KHz) | - |
Controller / Integrated | Integrated |
Advanced Features | CapSaver, Peak Power |
Temp. Range (°C) | -40 to +125°C |
Qualification Level | Standard |
Package Options
Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
---|---|---|---|
SOICN | 9.9 x 3.9 x 1.25 | 13 | 1.3 |
Application Block Diagrams
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Additional Applications
- Smart Meter
- Large appliances
- Industry control
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