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Overview
| Topology | Flyback Converter |
| Input voltage | 85-498 V |
| Switching frequency | 60-115 kHz |
| Output 1 | 6 V / 0.2 A |
| Output 2 | 12 V / 0.7 A |
| IC revision | Rev1 |
Description
The device is a high voltage converter smartly integrating a 1050 V avalanche-rugged power section, with a PWM current mode control. The 1050 V-BV power MOSFET allows to extend input voltage range, and reduce the size of the DRAIN snubber circuit. This IC meets the most stringent energy-saving standards as it has very low consumption and operates in burst mode under light load.The integrated HV startup, sense-FET, error amplifier and oscillator with jitter allow a complete application to be designed with the minimum number of components.The VIPer26K supports the most common SMPS topologies such as: isolated flyback with optocoupler, primary-side regulation, non-isolated flyback with resistive feedback, buck, and buck boost.
Features
- 800 V avalanche rugged power section
- PWM operation with frequency jittering for low EMI
- Operating frequency:– 60 kHz for L type– 115 kHz for H type
- Standby power < 50 mW at 265 VAC
- Limiting current with adjustable set point
- On-board soft-start
- Safe auto-restart after a fault condition
- Hysteretic thermal shutdown
Typical applications
- LED drivers
- isolated flyback with primary side regulation (PSR), specifically designed to supply smart meter and PLC systems
- Power metering
- Auxiliary power supply for appliances / SMPS for set-top boxes, DVD players and recorders
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | VRMS(V) | VDC(V) | VBR(V) | IPeak(A) | Wmax(J) | PDiss(W) | VDE Approval | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LQS SMT Power Inductor, 3.3 µH, 3.23 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | Inductance3.3 µH | Rated Current3.23 A | Saturation Current1.75 A | DC Resistance33 mΩ | Self Resonant Frequency75 MHz | – | – | – | – | – | – | – | ||||
 | WE-VD Disk Varistor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-VD Disk Varistor | – | – | – | – | – | AC Operating Voltage275 V | DC Operating Voltage350 V | (Reverse) Breakdown Voltage430 V | (Reverse) Peak Pulse Current6000 A | Energy Absorption155 J | Power Dissipation0.6 W | VDE ApprovalYes |