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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 MOSFET or IGBT.

    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 microcontroller/DSP.
    An integrated comparator is available for fast protection against overcurrent, overtemperature, etc.

    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
    • Switching times 15 ns rise/fall with 1 nF load
    • 3.3 V, 5 V TTL/CMOS inputs with hysteresis
    • Integrated bootstrap diode
    • Comparator for fault protections
    • Smart shutdown function
    • Adjustable deadtime
    • Interlocking function
    • Compact and simplified layout
    • Bill of material reduction
    • Effective fault protection
    • Flexible, easy and fast design

Circuit Diagram

L6491 block diagram

Sample & Buy

Part Number
Package
Packing Type
Temperature (°C) Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
More info
Order from Distributors
Order from ST
min
max
L6491D SO-14 Tube -40 125
Active
0.8676 1000 EAR99
MORE INFO

Country of Origin:

MOROCCO

Check Availability

Distributor availability ofL6491D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1640 1 Order Now
RS COMPONENTS EUROPE 970 1 Order Now
ARROW EUROPE 1000 0 Order Now
Newark Element14 AMERICA 13 0 Order Now
MOUSER WORLDWIDE 1530 1 Order Now
Farnell Element14 EUROPE 130 1 Order Now

Distributor reported inventory date: 2019-10-21

Distributor Name

DIGIKEY

Stock

1640

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

970

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

1000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

13

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1530

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

130

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-21

Buy now
L6491DTR SO-14 Tape And Reel -40 125
Active
0.8676 1000 EAR99
MORE INFO

Country of Origin:

MOROCCO

Check Availability

Distributor availability ofL6491DTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 16 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 1651 1 Order Now
RUTRONIK EUROPE 400 2500 Order Now

Distributor reported inventory date: 2019-10-21

Distributor Name

DIGIKEY

Stock

16

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1651

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

400

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-21

Get sample

L6491D

Package

SO-14

Packing Type

Tube

Unit Price (US$)

0.8676*

Distributor availability ofL6491D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1640 1 Order Now
RS COMPONENTS EUROPE 970 1 Order Now
ARROW EUROPE 1000 0 Order Now
Newark Element14 AMERICA 13 0 Order Now
MOUSER WORLDWIDE 1530 1 Order Now
Farnell Element14 EUROPE 130 1 Order Now

Distributor reported inventory date: 2019-10-21

Distributor Name

DIGIKEY

Stock

1640

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

970

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

1000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

13

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1530

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

130

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-21

Operating Temperature (°C)

(min)

-40

(max)

125

Marketing Status

Active

Unit Price (US$)

0.8676

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MOROCCO

L6491DTR

Package

SO-14

Packing Type

Tape And Reel

Unit Price (US$)

0.8676*

Distributor availability ofL6491DTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 16 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 1651 1 Order Now
RUTRONIK EUROPE 400 2500 Order Now

Distributor reported inventory date: 2019-10-21

Distributor Name

DIGIKEY

Stock

16

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1651

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

400

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-21

Operating Temperature (°C)

(min)

-40

(max)

125

Marketing Status

Active

Unit Price (US$)

0.8676

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MOROCCO

(*) 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

Education

This product is labeled Sustainable Technology.

Education

Product included in our Longevity Program.

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Technical Documentation

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      DS9763
      High voltage high and low-side 4 A gate driver
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      DS9763

      High voltage high and low-side 4 A gate driver

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Publications and Collaterals

    • Description Version Size Action
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF

      Electric vehicle (EV) ecosystem

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6491D
Active
SO-14 Industrial Ecopack2
L6491DTR
Active
SO-14 Industrial Ecopack2

L6491D

Package:

SO-14

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-14

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6491DTR

Package:

SO-14

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-14

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.