STEVAL-ISA153V1

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12 V, 15 W (20 W peak) isolated flyback converter based on the VIPER38LE

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Product overview

Description

The STEVAL-ISA153V1 product evaluation board implements a 12 V/1.25 A, 15 W (20 W peak) isolated flyback wide-range mains developed for general-purpose applications.

The core of the application is the VIPER38LE, the latest offline converter from the VIPerPlus family. The device is a high-voltage converter that smartly integrates an 800 V rugged power MOSFET with PWM current-mode control. The device features an adjustable extra power timer (EPT) that enables the IC to sustain overload conditions for a few seconds.

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

The VIPER38LE operates at a fixed 60 kHz frequency. Frequency jittering is implemented, which helps the application meet electromagnetic disturbance standards.

The IC includes high-level protection features such as dual-level OCP, output overvoltage, short-circuit, and thermal shutdown with hysteresis. After removal of a fault condition, the IC is automatically restarted.

  • All features

    • Universal input mains range: 90 – 265 VACfrequency: 50 - 60 Hz
    • Output voltage/current: 12 V/1.25 A (1.65 A peak)
    • Very compact size
    • Standby mains consumption: lower than 30 mW at 230 VAC
    • Minimum active mode efficiency: 81.55%
    • Minimum active mode at 10% load efficiency: 71.55%
    • EMI: in accordance with EN55022-Class-B
    • RoHS compliant

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA153V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA153V1

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.

Sample & Buy

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STEVAL-ISA153V1 Available at distributors

Distributor availability of STEVAL-ISA153V1

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VIPER38LE
Active
- 3A991.a.2 NEC ITALY -

STEVAL-ISA153V1 Active

ECCN (US):
3A991.a.2
Budgetary Price (US$)*/Qty:
-

Part Number:

STEVAL-ISA153V1

Core Product:

VIPER38LE

Supplier:

-

ECCN (EU):

NEC

Country of Origin:

ITALY

Board production status:

-

Distributor Name

Distributor reported inventory date:

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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