ALED1642GW

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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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Related Applications

Lighting and Controls

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-ILL073V1

      Active

      RGB LED driver for automotive lighting based on ALED1642GW and STM8A

      LED and General Lighting Solution Eval Boards ST
      STEVAL-ILL073V1

      Description:

      RGB LED driver for automotive lighting based on ALED1642GW and STM8A

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Quality and Reliability

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.

Sample & Buy

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ECCN (US)
ECCN (EU)
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Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
ALED1642GWXTTR Available at 3 distributors

Distributor availability ofALED1642GWXTTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 614 1 Order Now
ARROW EUROPE 5000 0 Order Now
Newark Element14 AMERICA 29 0 Order Now

Distributor reported inventory date: 2020-10-26

Distributor Name

DIGIKEY

Stock

614

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

29

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2020-10-26

Active
EAR99 NEC Tape And Reel HTSSOP24 -40 150 PHILIPPINES 0.768 / 1k

ALED1642GWXTTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.768 / 1k

Distributor availability ofALED1642GWXTTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 614 1 Order Now
ARROW EUROPE 5000 0 Order Now
Newark Element14 AMERICA 29 0 Order Now

Distributor reported inventory date: 2020-10-26

Distributor Name

DIGIKEY

Stock

614

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

29

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2020-10-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

HTSSOP24

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

0.768 / 1k

Country of Origin

PHILIPPINES

(*) 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