L99LD21

批量生产

高功率LED驱动器,用于汽车应用

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概述
Online design
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
Partner products
Sales Briefcase

产品概述

描述

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.
  • 所有功能

    • AEC-Q100 qualified
    • General
      • 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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      汽车IC评估板 ST
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      描述:

      用于汽车照明应用的数字控制LED驱动板

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      描述:

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      AEKD-BLINDSPOTB1

      批量生产

      Set of assembled boards for blind-spot detection simulation

      交通运输解决方案评估板 ST
      AEKD-BLINDSPOTB1

      描述:

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      L99LD21-ADIS

      批量生产

      Led驱动器探索板

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EDA符号、封装和3D模型

STMicroelectronics - L99LD21

为您的应用下载所有EDA符号、封装和3D模型,加快您的设计速度。您可以从大量CAD格式中进行选择,以匹配您的设计工具链。

Symbols

符号

Footprints

封装

3D model

3D模型

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
L99LD21Q6
NRND
VFQFPN 6X6 汽车应用 Ecopack2
L99LD21Q6TR
批量生产
VFQFPN 6X6 汽车应用 Ecopack2

L99LD21Q6

Package:

VFQFPN 6X6

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

VFQFPN 6X6

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L99LD21Q6TR

Package:

VFQFPN 6X6

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

VFQFPN 6X6

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
L99LD21Q6TR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel VFQFPN 6X6 - - THAILAND 1.836 / 1k
L99LD21Q6 无法联系到经销商,请联系我们的销售办事处
NRND
EAR99 NEC Tray VFQFPN 6X6 - - THAILAND 1.836 / 1k

L99LD21Q6TR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.836 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

VFQFPN 6X6

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.836 / 1k

Country of Origin

THAILAND

L99LD21Q6

供货状态

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.836 / 1k

ECCN (EU)

NEC

包装类型

Tray

封装

VFQFPN 6X6

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.836 / 1k

Country of Origin

THAILAND

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商