16 Channels LED driver with error detection, current gain control and 12/16 bit-PWM brightness control for automotive applications

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  • The ALED1642GW is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The ALED1642GW guarantees 20 V output driving capability allowing the user to connect several LEDs in series. In the output stage, sixteen regulated current sources provide from 3 mA to 40 mA constant current to drive the LEDs. The current is programmed through an external resistor and can be adjusted by a 7-bit current gain register in two subranges. The brightness can be adjusted separately for each channel through 12/16-bit grayscale control.

    Programmable turn-on and turn-off time (four different values available) improves the low noise generation performance of the system.
    Open/short error detection mode is available in the ALED1642GW. The auto power-shutdown and auto power-on features (selectable) allow the device to save power without external intervention.
    Thermal management includes an overtemperature data alert and output thermal shutdown (170 °C). The high clock frequency is up to 30 MHz and it makes the device suitable for high data rate transmission. A selectable gradual output delay reduces the inrush current, whereas the selectable SDO synchronization feature works when the device is used in daisy-chain configuration. The supply voltage range is between 3 V and 5.5 V.

    Key Features

    • AECQ100 qualification
    • 16 constant current output channels
    • Output current: from 3 mA to 40 mA
    • Current programmable through external resistor
    • 7-bit global current gain adjustment in two ranges
    • 12/16-bit PWM grayscale brightness control
    • Programmable output turn-on/off time
    • Error detection mode (both open and shorted-LED)
    • Programmable shorted-LED detection thresholds
    • Auto power saving/auto-wakeup
    • Selectable SDO synchronization on the CLK falling edge
    • Gradual output delay (selectable)
    • Supply voltage: 3 V to 5.5 V
    • Thermal shutdown and overtemperature alert
    • Up to 30 MHz 4-wires interface
    • 20 V current generator rated voltage

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Part Number
Marketing Status
Quantity
Budgetary Price (US$)*
Package
Packing Type
Temperature (°C) ECCN (US)
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min
max
ALED1642GWXTTR
Active
10000 0.768 HTSSOP24 Tape And Reel -40 150 EAR99
MORE INFO

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofALED1642GWXTTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2494 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 3542 1 Order Now

Distributor reported inventory date: 2019-08-20

Distributor Name

RS COMPONENTS

Stock

2494

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3542

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-08-20

Get sample

ALED1642GWXTTR

Marketing Status

Active

Quantity

10000

Unit Price (US$)

0.768*

Distributor availability ofALED1642GWXTTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2494 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 3542 1 Order Now

Distributor reported inventory date: 2019-08-20

Distributor Name

RS COMPONENTS

Stock

2494

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3542

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-08-20

Unit Price (US$)

0.768

Package

HTSSOP24

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

150

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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Product included in our Longevity Program.

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Evaluation Tools

    • Part Number

      RGB LED driver for automotive lighting based on ALED1642GW and STM8A

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS10104
      16 channel LED driver with error detection, current gain control and 12/16-bit PWM brightness control for automotive applications
      4.0
      2.16 MB
      PDF
      DS10104

      16 channel LED driver with error detection, current gain control and 12/16-bit PWM brightness control for automotive applications

    • Description Version Size Action
      AN4374
      The LED1642GW and ALED1642GW start-up guide
      2.0
      1.66 MB
      PDF
      AN4374

      The LED1642GW and ALED1642GW start-up guide

Publications and Collaterals

    • Description Version Size Action
      LED array drivers for automotive applications 1.0
      1.07 MB
      PDF
      LED drivers for automotive applications 1.0
      707.5 KB
      PDF

      LED array drivers for automotive applications

      LED drivers for automotive applications

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

      Electric vehicle (EV) ecosystem

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ALED1642GWXTTR
Active
HTSSOP24 Automotive Ecopack2

ALED1642GWXTTR

Package:

HTSSOP24

Material Declaration**:

PDF XML

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.