Automotive-grade 12-channel LED driver with open detection, local dimming, busdriven and standalone operations

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  • The ALED1262ZT is a monolithic 12 output LED driver designed for automotive exterior and interior lighting applications. The ALED1262ZT guarantees 19 V output driving capability allowing users to connect several LEDs in series. In the output stage, twelve regulated current sources provide from 6 mA to 60 mA constant current to drive LEDs. The current is programmed by a single external resistor. In the ALED1262ZT, LED open error detection is available.

    The brightness can be adjusted separately for each channel through a 7-bit grayscale control. A slow turn-on and turn-off time improves the system low noise generation performance. Moreover the gradual output delay reduces the inrush current. To further increase EMI performance, this device implements an internal clock dithering to have a spread spectrum noise reduction.
    Thermal management is equipped with overtemperature data alert and the output thermal shutdown (170 °C). The I²C high clock frequency, up to 400 kHz, makes the device suitable for high data rate transmissions. The supply voltage range is between 5.5 V and 38 V avoiding any external pre-regulation or additional load dump protection on the power supply stage.
    This device can operate in bus-driven mode (BDM) using I²C interface or in standalone mode (SAM) using internal custom configuration by OTP.

    主な特徴

    • Designed for automotive applications
    • 12 constant current output channels
    • 19 V current generator rated voltage
    • Output current: from 6 mA to 60 mA
    • Current programmable by a single external resistor
    • 7-bit PWM local brightness control
    • Slow turn-on/off time, gradual output delay and dithered clock for EMI reduction
    • Error detection for open LEDs
    • Supply voltage: from 5.5 V to 38 V
    • Thermal shutdown and overtemperature alert
    • Standalone and bus-driven mode
    • Custom configuration by OTP with Redundancy and ECC
    • 400 kHz fast I²C interface with selectable extended Hamming encoding
    • Wired-OR error flag connection

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製品型番
製品ステータス
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概算価格(USS)
パッケージ
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温度(℃) ECCN (US)
詳細
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最小値
max
ALED1262ZTTR
Active
10000 1 HTSSOP24 Tape And Reel -40 150 EAR99
詳細情報

Country of Origin:

-

在庫チェック

Distributor availability ofALED1262ZTTR

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 1000 1 Order Now
MOUSER WORLDWIDE 988 1 Order Now

代理店レポートによる在庫データ: 2019-08-22

代理店名

DIGIKEY

在庫

1000

Min.Order

1

地域

WORLDWIDE Order Now

MOUSER

在庫

988

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-08-22

Get sample

ALED1262ZTTR

製品ステータス

アクティブ

数量

10000

Unit Price (US$)

1.0*

Distributor availability ofALED1262ZTTR

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 1000 1 Order Now
MOUSER WORLDWIDE 988 1 Order Now

代理店レポートによる在庫データ: 2019-08-22

代理店名

DIGIKEY

在庫

1000

Min.Order

1

地域

WORLDWIDE Order Now

MOUSER

在庫

988

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-08-22

Unit Price (US$)

1

パッケージ

HTSSOP24

梱包タイプ

Tape And Reel

Operating Temperature (°C)

(最小値)

-40

(max)

150

ECCN (US)

EAR99

Country of Origin

-

(*) 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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技術文書

    • 概要 バージョン サイズ アクション
      DS12631
      Automotive-grade 12-channel LED driver with open detection, local dimming, bus driven and standalone operations
      4.0
      3.29 MB
      PDF
      DS12631

      Automotive-grade 12-channel LED driver with open detection, local dimming, bus driven and standalone operations

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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**
ALED1262ZTTR
Active
HTSSOP24 オートモーティブ Ecopack2

ALED1262ZTTR

Package:

HTSSOP24

Material Declaration**:

Marketing Status

Active

Package

HTSSOP24

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.