A6986I

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Automotive 38 V, 5W synchronous iso-buck converter

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Product overview

Description

The A6986I is an automotive grade device specifically designed for the isolated buck topology. The 100% duty cycle capability and the wide input voltage range meet the cold crank and load dump specifications for automotive systems. The primary output voltage can be accurately adjusted, whereas the isolated secondary output is derived by using a given transformer ratio. No optocoupler is required. The primary sink capability typically up to 1.9 A (even during soft-start) allows a proper energy transfer to the secondary side as well as enabling 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, making the solution more robust. Pulse-by-pulse current sensing on both power elements implements an effective constant current protection in the primary side. Due to the primary reverse current limit, the secondary output is protected against short-circuit events. A primary output voltage supervisor, which notifies primary output voltage regulation through the RST open collector output, overvoltage protection, adjustable switching frequency, synchronization and a programmable soft-start are also available. For traditional buck topology in automotive application the A6986 / A6985F / A6986F / A6986H is recommended.
  • All features

    • AEC-Q100 Grade 1 qualified
    • Designed for iso-buck topology
    • 4 V 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

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All tools & software

    • Part number
      Status
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      Type
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      STEVAL-A6986IV1

      Active

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

      Automotive IC Eval Boards ST
      STEVAL-A6986IV1

      Description:

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

      STEVAL-A6986IV2

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

      Automotive IC Eval Boards ST
      STEVAL-A6986IV2

      Description:

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

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STMicroelectronics - A6986I

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
A6986ITR
Active
HTSSOP16 Automotive Ecopack2

A6986ITR

Package:

HTSSOP16

Material Declaration**:

Marketing Status

Active

Package

HTSSOP16

Grade

Automotive

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

Part Number
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
A6986ITR Available at 3 distributors

Distributor availability ofA6986ITR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 400 1 Order Now
MOUSER WORLDWIDE 2487 1 Order Now
Farnell Element14 EUROPE 610 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

DIGIKEY

Stock

400

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2487

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

610

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel HTSSOP16 - - PHILIPPINES 1.87 / 1k

A6986ITR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.87 / 1k

Distributor availability ofA6986ITR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 400 1 Order Now
MOUSER WORLDWIDE 2487 1 Order Now
Farnell Element14 EUROPE 610 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

DIGIKEY

Stock

400

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2487

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

610

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

HTSSOP16

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

1.87 / 1k

Country of Origin

PHILIPPINES

(*) 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