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  • The AEK-LED-21DISM1 LED driver board is designed for high brightness automotive LED front lighting applications according to the AutoDevKit initiative. It can control four LED strings through two embedded L99LD21 flexible LED drivers with high efficiency boost controller and two embedded buck converters.

    The boost controller section in each L99LD21 LED driver integrates a high current gate driver for an external N-channel MOSFET and delivers a constant output voltage to two integrated buck converters. The boost controller of two devices can be stacked to allow dual phase operation for high power applications, with an interleaving pattern for improved input current ripple and current load sharing. The buck converter integrates an N-channel MOSFET driven by a bootstrap circuit.
    The board uses SPI communication with an external microcontroller via a 12-pin male connector, and a special Limp Home Mode implemented in the L99LD21 driver ensures that active communication with the MCU is regularly monitored. You can use the AutoDevKit library extension for the SPC5-Studio development environment to install board firmware drivers that are immediately compatible with SPC5-family MCUs.
    The overall package is designed to address automotive lighting applications, including high beams and low beams, daytime running lights, turn indicators, position lights, side markers and fog lights.

    Key Features

    • Two embedded L99LD21 high power LED drivers able to supply four independent channels
    • Output current up to 1.69 A each channel
    • Input operating voltage range from 5.5 V to 24 V
    • Programmable via SPI, allowing accurate LED current setting
    • Protections and diagnostics for output short-circuit and open-load, overtemperature, and battery undervoltage.
    • Automotive Limp-Home Mode support
    • Board size: 81 x 100 mm. Maximum components height: 11 mm
    • WEEE and RoHS compliant
    • All ST components are qualified Automotive grade
    • Board designed according to the AutoDevKit initiative

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Quality and Reliability

Part Number Marketing Status RoHS Compliance Grade WEEE Compliant Material Declaration**
AEK-LED-21DISM1
Active
Ecopack2 Yes

AEK-LED-21DISM1

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
AEK-LED-21DISM1 Available at 7 distributors

Distributor availability ofAEK-LED-21DISM1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 20 1 Order Now
RS COMPONENTS EUROPE 3 1 Order Now
AVNET AMERICA 10 0 Order Now
FUTURE WORLDWIDE 10 1 Order Now
MOUSER WORLDWIDE 18 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now
ANGLIA Live EUROPE 3 1 Order Now

Distributor reported inventory date: 2020-11-29

Distributor Name

DIGIKEY

Stock

20

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

10

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

18

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-29

Buy Direct L99LD21
Active
ST EAR99 NEC ITALY 78.0 / 1

AEK-LED-21DISM1

Core Product

L99LD21

Marketing Status

Active

Budgetary Price (US$)*/Qty

78.0 / 1

Distributor availability ofAEK-LED-21DISM1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 20 1 Order Now
RS COMPONENTS EUROPE 3 1 Order Now
AVNET AMERICA 10 0 Order Now
FUTURE WORLDWIDE 10 1 Order Now
MOUSER WORLDWIDE 18 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now
ANGLIA Live EUROPE 3 1 Order Now

Distributor reported inventory date: 2020-11-29

Distributor Name

DIGIKEY

Stock

20

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

10

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

18

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-29

Supplier

ST

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

78.0 / 1

Country of Origin

ITALY

(*) 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