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Overview
| Topology | Flyback Converter |
| Input voltage | 100-265 V |
| Switching frequency | 60-115 kHz |
| Output 1 | 12 V / 1.25 A |
| IC revision | 3 |
Description
This device is an offline converter with an 800 V rugged power section, a PWM control, two levels of overcurrent protection, overvoltage and overload protection, hysteretic thermal protection, soft-start, and safe auto-restart after the removal of any fault condition. Burst mode operation and very low device consumption help to meet the standby energy saving regulations. Advance frequency jittering reduces EMI filter costs. Brownout function protects the switch mode power supply when the rectified input voltage level is below the normal minimum level specified for the system. The high voltage startup circuit is embedded in the device.
Features
- 800 V avalanche rugged power section
- PWM operation with adjustable limiting current
- 30 mW standby power at 265 Vac
- Operating frequency:
- – 60 kHz for L type
- – 115 kHz for H type
- Frequency jittering for low EMC
- Output overvoltage protection
- High primary current protection (2nd OCP)
- Input undervoltage setting (brownout)
- Onboard soft-start
- Safe auto-restart after a fault condition
- Hysteretic thermal shutdown
Typical applications
- Low / medium power AC-DC adapters
- ATX auxiliary power supply
- Auxiliary power supply for consumer and home
- SMPS for set-top boxes, DVD players and
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-CMB Common Mode Power Line Choke, 0.5 A, 20 mH | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | Rated Current0.5 A | Inductance20 mH | DC Resistance1000 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length15 mm | Width7.8 mm | Height17.5 mm | MountTHT |