High power LED driver for automotive applications

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  • The L99LD21 is a flexible LED driver, which is specifically designed for the control of two independent high brightness LED strings for automotive front lighting applications. It consists of a high efficiency monolithic boost controller and a dual buck converter.

    The boost controller integrates a high current gate driver for an external n-channel mosfet. It delivers a constant output voltage, up to 60 V, which supplies the inputs of the two integrated or external buck converters.
    The boost controller of two devices can be stacked, in order to operate in dual phase for high power applications, with an interleaving pattern for an improved input current ripple.
    The buck converters integrate n-channel mosfet which is driven by a bootstrap circuit.

    主な特徴

    • AEC-Q100 qualified
    • 一般
      • ST SPI communication v4.1
      • 5.5 to 24V Operating battery voltage range
      • Load dump protected
      • QFN40L (wettable flanks) with exposed pad
      • Timeout watchdog and limp home function
      • Low standby current
    • Boost Section
      • Fixed frequency architecture, programmable by SPI
      • Peak current mode control
      • Dual phase operation supported
      • Input current limitation
      • Soft start
      • Overvoltage protection (OVP)
      • Short feedback failure protection
      • Constant voltage control
    • Buck section
      • Integrated switching mosfets
      • Lossless current sensing without need of external components
      • Very accurate LED current setting programming inductor's peak current and peak-to-peak current ripple
      • Adjustable peak current by SPI
      • Adjustable current ripple by SPI
      • Integrated PWM generation unit with 10-bit resolution and phase shift
      • Peak current control
      • Constant VLED x TOFF architecture
    • Protection and diagnostic
      • Battery under voltage
      • Temperature warning (2 thresholds)
      • Overtemperature shutdown
      • LED voltage digital feedback through SPI
      • Buck outputs short circuit and open load protection

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製品型番
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最小値
max
L99LD21Q6TR
Active
1000 1.836 VFQFPN 6X6 Tape And Reel - - EAR99
詳細情報

Country of Origin:

MALAYSIA

在庫チェック

Distributor availability ofL99LD21Q6TR

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
FUTURE WORLDWIDE 3758 1 Order Now
MOUSER WORLDWIDE 3001 1 Order Now
Farnell Element14 EUROPE 180 1 Order Now

代理店レポートによる在庫データ: 2019-09-13

代理店名

DIGIKEY

在庫

3000

Min.Order

1

地域

WORLDWIDE Order Now

FUTURE

在庫

3758

Min.Order

1

地域

WORLDWIDE Order Now

MOUSER

在庫

3001

Min.Order

1

地域

WORLDWIDE Order Now

Farnell Element14

在庫

180

Min.Order

1

地域

EUROPE Order Now

代理店レポートによる在庫データ: 2019-09-13

購入
L99LD21Q6
Active
1000 1.836 VFQFPN 6X6 Tray - - EAR99
詳細情報

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office

L99LD21Q6TR

製品ステータス

アクティブ

数量

1000

Unit Price (US$)

1.836*

Distributor availability ofL99LD21Q6TR

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
FUTURE WORLDWIDE 3758 1 Order Now
MOUSER WORLDWIDE 3001 1 Order Now
Farnell Element14 EUROPE 180 1 Order Now

代理店レポートによる在庫データ: 2019-09-13

代理店名

DIGIKEY

在庫

3000

Min.Order

1

地域

WORLDWIDE Order Now

FUTURE

在庫

3758

Min.Order

1

地域

WORLDWIDE Order Now

MOUSER

在庫

3001

Min.Order

1

地域

WORLDWIDE Order Now

Farnell Element14

在庫

180

Min.Order

1

地域

EUROPE Order Now

代理店レポートによる在庫データ: 2019-09-13

Unit Price (US$)

1.836

パッケージ

VFQFPN 6X6

梱包タイプ

Tape And Reel

Operating Temperature (°C)

(最小値)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L99LD21Q6

製品ステータス

アクティブ

数量

1000

Unit Price (US$)

1.836*

Unit Price (US$)

1.836

パッケージ

VFQFPN 6X6

梱包タイプ

Tray

Operating Temperature (°C)

(最小値)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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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      Digitally controlled LED driver board for automotive lighting applications

00 ファイルがダウンロード用に選択されています

技術文書

    • 概要 バージョン サイズ アクション
      DB2773
      High power LED driver for automotive applications
      1.0
      262.23 KB
      PDF
      DS11130
      High power LED driver for automotive applications
      5.0
      1.24 MB
      PDF
      DB2773

      High power LED driver for automotive applications

      DS11130

      High power LED driver for automotive applications

関連資料

    • 概要 バージョン サイズ アクション
      Smart power solutions for car body applications 4.0
      1.17 MB
      PDF

      Smart power solutions for car body applications

製品型番 製品ステータス パッケージ グレード RoHSコンプライアンスグレード 材料宣誓書**
L99LD21Q6
Active
VFQFPN 6X6 オートモーティブ Ecopack2
L99LD21Q6TR
Active
VFQFPN 6X6 オートモーティブ Ecopack2

L99LD21Q6

Package:

VFQFPN 6X6

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 6X6

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L99LD21Q6TR

Package:

VFQFPN 6X6

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 6X6

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.