STEVAL-A6986IV1

Active

38 V, 5 W synchronous iso-buck converter evaluation board with dual isolated output based on the A6986I

Download databrief Order Direct
Overview
Online design
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Partner products
Sales Briefcase

Product overview

Description

The STEVAL-A6986IV1 evaluation board is based on ST A6986I automotive 38 V, 5 W synchronous iso-buck converter for isolated applications. The primary output voltage can be accurately adjusted, whereas the isolated secondary output is generated by a transformer. No optocoupler is required.
The primary sink capability (typ. 1.9 A) allows a proper energy transfer to the secondary side and enables a tracked soft-start of the secondary output.
The control loop is based on a peak current mode architecture and the device operates in forced PWM.
The 300 ns blanking time filters oscillations generated by the transformer leakage inductance and makes the solution more robust.
Pulse by pulse current sensing on both power elements implements an effective constant current protection on the primary side. Due to the primary reverse current limit, the secondary output is protected against short-circuit events. The secondary voltage is stabilized over current by using a power transistor and a shunt voltage reference (TL431).
The evaluation board generates two isolated voltages (positive around 18 V and negative between 4 V and 5 V), especially suitable for supplying IGBT/SiC MOSFET gate driver. A simple bypass enables the supply of a single isolated voltage.
  • All features

    • AEC-Q100 qualified
    • Operating temperature range: -40 °C to 135 °C for Tj
    • Designed for iso-buck topology
    • 4 to 38 V operating input voltage
    • Primary output voltage regulation
    • No optocoupler required
    • 1.9 A typical sink peak primary current capability
    • Peak current mode architecture in forced PWM operation
    • 300 ns blanking time
    • 8 µA IQ-SHTDWN
    • Adjustable fSW and synchronization
    • Embedded primary output voltage supervisor
    • Adjustable soft-start time
    • Internal primary current limiting
    • Overvoltage protection
    • RDS(on) HS = 180 mΩ, RDS(on) LS = 150 mΩ
    • Thermal shutdown

Recommended for you

Related Applications

Industrial

Quality and Reliability

Part Number Marketing Status RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-A6986IV1
Active
Ecopack2 Yes

STEVAL-A6986IV1

Package:

Ecopack2

Material Declaration**:

Marketing Status

Active

RoHS Compliance Grade

Ecopack2

WEEE Compliant

Yes

(**) 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

Part Number
Order from Distributors
Order from ST
Core Product
Marketing Status
Supplier
ECCN (US)
ECCN (EU)
Country of Origin
Budgetary Price (US$)*/Qty
STEVAL-A6986IV1 Available at 3 distributors

Distributor availability ofSTEVAL-A6986IV1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
MOUSER WORLDWIDE 3 1 Order Now
Farnell Element14 EUROPE 10 1 Order Now

Distributor reported inventory date: 2021-09-21

Distributor Name

DIGIKEY

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

10

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-21

Buy Direct A6986I
Active
ST EAR99 NEC ITALY 33.0 / 1

STEVAL-A6986IV1

Core Product

A6986I

Marketing Status

Active

Budgetary Price (US$)*/Qty

33.0 / 1

Distributor availability ofSTEVAL-A6986IV1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
MOUSER WORLDWIDE 3 1 Order Now
Farnell Element14 EUROPE 10 1 Order Now

Distributor reported inventory date: 2021-09-21

Distributor Name

DIGIKEY

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

10

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-21

Supplier

ST

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

33.0 / 1

Country of Origin

ITALY

(*) 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