EVLSTNRG-170W

NRND
Design Win

170W SMPS with digitally controlled PFC and resonant LLC stage using STNRG388A

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Product overview

Description

The EVLSTNRG-170W evaluation board is intended for evaluating the STNRG388A digital controller in off-line power conversion applications such as digital industrial power supplies.

The solution implements a PFC stage followed by a resonant LLC stage supporting up to 170 W. The application supports multiple output rails: a high power 24 V (6 A) channel for the main application, 1 auxiliary 12 V (2 A) for the controller and an always-on 5 V (2 A) standby.

The STNRG388A power conversion dedicated peripherals (SMEDs) offer the flexibility to drive the PFC in transition mode (DCM-CCM boundary) while the resonant LLC is controlled with timeshift control (TSC). In parallel to managing the two conversion stages, STNRG388A guarantees all the protections required by the application as well as implementing the advanced Anti Capacitive protection.

Thanks to the digital core of STNRG388A, it is also possible to monitor, control and debug the EVLSTNRG-170W board via a convenient HyperTerminal control.

  • All features

    • Digital controller: STNRG388A
    • Enhanced constant ON Time PFC
    • Timeshift controlled LLC
    • Max. power: 170 W
    • Efficiency: more than 91% at full load
    • Standby consumption: <150 mW with 50 mW secondary side load
    • Input voltage range: from 90 to 264 Vdc
    • Multiple output rails: 24 V (6 A), 12 V (2 A), 5 V (2 A)
    • Modular power and control board

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
EVLSTNRG-170W
NRND
CARD Industrial Ecopack1 -

EVLSTNRG-170W

Package:

CARD

Material Declaration**:

Marketing Status

NRND

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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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ECCN (EU)
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EVLSTNRG-170W Available at distributors

Distributor availability of EVLSTNRG-170W

Distributor Name
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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
STNRG388A
NRND
- EAR99 NEC ITALY -

EVLSTNRG-170W NRND

ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

EVLSTNRG-170W

Core Product:

STNRG388A

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