Overview
Sample & Buy
Solutions
Resources
Tools & Software
Quality & Reliability
eDesignSuite
Get Started
Partner products
Sales Briefcase
  • 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

Recommended for you

Related Applications

Data Center

Telecom Infrastructure

Energy generation and distribution

Home and Professional Appliances

Home, Building and City Automation

Lighting and Controls

Power Supplies and Converters

Evaluation Tools

    • Part Number

      Demonstration board for L6491 gate driver with smart shut down feature

      1 kW traction controller reference design for 3-phase BLDC motors for light electric vehicles

      5 kW low voltage high current inverter for industrial motor control applications

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS9763
      High voltage high and low-side 4 A gate driver
      1.0
      838.68 KB
      PDF
      DS9763

      High voltage high and low-side 4 A gate driver

    • Description Version Size Action
      AN4909
      Intelligent power switches for 48 V battery applications
      1.0
      1.07 MB
      PDF
      AN4909

      Intelligent power switches for 48 V battery applications

Publications and Collaterals

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

      Electric vehicle (EV) ecosystem

Quality and Reliability

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Temperature (°C) Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
min
max
L6491D Available at 5 distributors

Distributor availability ofL6491D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1350 1 Order Now
RS COMPONENTS EUROPE 830 1 Order Now
Newark Element14 AMERICA 13 0 Order Now
MOUSER WORLDWIDE 1208 1 Order Now
Farnell Element14 EUROPE 819 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

1350

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

830

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

13

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1208

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

819

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Buy now SO-14 Tube -40 125
Active
EAR99 MOROCCO 0.8676 / 1k
L6491DTR Available at 5 distributors

Distributor availability ofL6491DTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2068 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 1272 1 Order Now
Farnell Element14 EUROPE 2500 1 Order Now
RUTRONIK EUROPE 390 2500 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

2068

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1272

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2500

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

390

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Get sample SO-14 Tape And Reel -40 125
Active
EAR99 MOROCCO 0.8676 / 1k

L6491D

Package

SO-14

Packing Type

Tube

Budgetary Price (US$)*/Qty

0.8676 / 1k

Distributor availability ofL6491D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1350 1 Order Now
RS COMPONENTS EUROPE 830 1 Order Now
Newark Element14 AMERICA 13 0 Order Now
MOUSER WORLDWIDE 1208 1 Order Now
Farnell Element14 EUROPE 819 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

1350

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

830

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

13

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1208

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

819

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Operating Temperature (°C)

(min)

-40

(max)

125

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.8676 / 1k

ECCN (US)

EAR99

Country of Origin

MOROCCO

L6491DTR

Package

SO-14

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.8676 / 1k

Distributor availability ofL6491DTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2068 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 1272 1 Order Now
Farnell Element14 EUROPE 2500 1 Order Now
RUTRONIK EUROPE 390 2500 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

2068

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1272

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2500

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

390

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Operating Temperature (°C)

(min)

-40

(max)

125

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.8676 / 1k

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