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  • The L6491 is a high voltage device manufactured with the BCD6 “OFF-LINE” technology. It is a single-chip half-bridge gate driver for N-channel power MOSFETs or IGBTs, with a 4 A sink and source current capability.

    The high-side (floating) section is designed to stand a voltage rail up to 600 V. The logic inputs are CMOS/TTL compatible down to 3.3 V for easy interfacing a microcontroller or DSP.
    An integrated comparator is available for fast overcurrent protection, and is also suited for other functions such overtemperature, etc.
    The EVAL6491HB board allows evaluating all of the L6491 features while driving a power switch with voltage rating up to 600 V in TO-220 or TO-247 packages.
    The board allows easily selecting and modifying the values of relevant external components in order to ease driver's performance evaluation under different applicative conditions and fine pre-tuning of final application's components.

    Key Features

    • High voltage rail up to 600 V
    • dV/dt immunity: 50 V/ns in full temperature range
    • Driver current capability: 4 A source/sink
    • Comparator for fault protections
    • Smart shutdown function
    • Integrated bootstrap diode
    • Adjustable deadtime
    • Interlocking function
    • Switching times 15 ns rise/fall with 1 nF load
    • 3.3 V, 5 V TTL/CMOS inputs with hysteresis
    • Compact and simplified layout
    • Bill of material reduction
    • Effective fault protection
    • Flexible, easy and fast design

Sample & Buy

Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
EVAL6491HB L6491
Active
37 1 EAR99 - No availability of distributors reported, please contact our sales office

EVAL6491HB

Core Product

L6491

Marketing Status

Active

Unit Price (US$)

37.0*

Unit Price (US$)

37

Quantity

1

ECCN (US)

EAR99

Country of Origin

-

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

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB2575
      Demonstration board for L6491 gate driver with smartSD
      1.0
      488.4 KB
      PDF
      DB2575

      Demonstration board for L6491 gate driver with smartSD

Hardware Resources

    • Description Version Size Action
      EVAL6491HB gerber files 1.0
      184.82 KB
      ZIP

      EVAL6491HB gerber files

    • Description Version Size Action
      EVAL6491HB BOM 1.0
      38.86 KB
      PDF

      EVAL6491HB BOM

    • Description Version Size Action
      EVAL6491HB board schematic
      394.58 KB
      PDF

      EVAL6491HB board schematic

Publications and Collaterals

    • Description Version Size Action
      X-NUCLEO expansion boards motor control - Selection guide 1.2
      263.59 KB
      PDF

      X-NUCLEO expansion boards motor control - Selection guide

    • Description Version Size Action
      Products and solutions for Smart industry 3.0
      2.99 MB
      PDF

      Products and solutions for Smart industry

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
EVAL6491HB
Active
CARD Industrial Ecopack1 -

EVAL6491HB

Package:

CARD

Material Declaration**:

Marketing Status

Active

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.