STEVAL-ISA197V1

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Design Win

12 V, 7.8 W isolated flyback converter based on VIPer114LS

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Product overview

Description

The STEVAL-ISA197V1 evaluation board implements a 7.8 W (12 V / 0.65 A) isolated flyback wide range mains developed for general purpose applications.

The core of the application is the innovative VIPer114LS IC, designed for smart power supplies incorporating green energy management.

The device is a high-voltage converter that intelligently integrates an 800 V rugged power MOSFET with PWM current-mode control. VIPer114LS operates at fixed frequency 60 kHz with frequency jittering to meet standards regarding electromagnetic disturbance. The multiple protections on the device, including pulse skip mode to avoid flux-runaway, delayed overload, max duty cycle counter, input or output overvoltage and thermal shutdown improve the reliability and safety of the design.

The main characteristics of the evaluation board are its small size and minimal BOM, high efficiency and low standby consumption. Extremely low consumption under the no-load condition is ensured thanks to burst mode operation, which reduces the average switching frequency and minimizes all frequency-related losses.

  • All features

    • Universal input mains range: 90 – 265VAC, frequency: 50 – 60 Hz
    • Output voltage: 12 V
    • Output current: 0.65 A
    • Very compact size
    • Stand-by mains consumption: < 20 mW at 230VAC
    • Average efficiency: > 81%
    • EMI: according to EN55022-Class-B
    • RoHS compliant

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA197V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA197V1

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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STEVAL-ISA197V1 Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
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Part Number:

STEVAL-ISA197V1

Supplier:

ST

Core Product:

VIPER114LS

Board production status:

-

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors