16 Channels LED driver with Error detection, Current Gain Control and 12/16 bit PWM Brightness control

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  • The LED1642GW is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The LED1642GW 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 LED1642GW. 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

    • 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
    • 30 MHz 4-wires interface
    • 20 V current generator rated voltage

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LED1642GWTTR
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10000 0.716 TSSOP 24 Tape And Reel -40 125 EAR99
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LED1642GWXTTR
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10000 0.775 HTSSOP24 Tape And Reel -40 125 EAR99
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LED1642GWPTR
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10000 0.716 QSOP24 Tape And Reel -40 125 EAR99
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LED1642GWQTR
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10000 0.775 QFN-24L Tape And Reel -40 125 EAR99
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LED1642GWTTR

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Quantity

10000

Unit Price (US$)

0.716*

Distributor availability ofLED1642GWTTR

Distributor Name
Region Stock Min. Order Third party link
ARROW EUROPE 2500 0 Order Now
P&S ASIA/PACIFIC 30 1 Order Now

Distributor reported inventory date: 2019-08-22

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ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

P&S

Stock

30

Min.Order

1

Region

ASIA/PACIFIC Order Now

Distributor reported inventory date: 2019-08-22

Unit Price (US$)

0.716

Package

TSSOP 24

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

125

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LED1642GWXTTR

Marketing Status

Active

Quantity

10000

Unit Price (US$)

0.775*

Distributor availability ofLED1642GWXTTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now
ARROW EUROPE 7500 0 Order Now
ARROW AMERICA 32500 2500 Order Now
MOUSER WORLDWIDE 2481 1 Order Now

Distributor reported inventory date: 2019-08-22

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

7500

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

32500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

2481

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-08-22

Unit Price (US$)

0.775

Package

HTSSOP24

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

125

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LED1642GWPTR

Marketing Status

Active

Quantity

10000

Unit Price (US$)

0.716*

Distributor availability ofLED1642GWPTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 30309 1 Order Now
RS COMPONENTS EUROPE 420 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 8713 1 Order Now
Farnell Element14 EUROPE 852 1 Order Now
RUTRONIK EUROPE 5000 2500 Order Now

Distributor reported inventory date: 2019-08-22

Distributor Name

DIGIKEY

Stock

30309

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

420

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

8713

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

852

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

5000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-22

Unit Price (US$)

0.716

Package

QSOP24

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

125

ECCN (US)

EAR99

Country of Origin

CHINA

LED1642GWQTR

Marketing Status

Active

Quantity

10000

Unit Price (US$)

0.775*

Distributor availability ofLED1642GWQTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 43950 1 Order Now
AVNET AMERICA 4000 0 Order Now
FUTURE WORLDWIDE 8000 4000 Order Now
ARROW EUROPE 4000 0 Order Now
ARROW AMERICA 4000 4000 Order Now
MOUSER WORLDWIDE 38528 1 Order Now
Farnell Element14 EUROPE 7863 1 Order Now

Distributor reported inventory date: 2019-08-22

Distributor Name

DIGIKEY

Stock

43950

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

4000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

8000

Min.Order

4000

Region

WORLDWIDE Order Now

ARROW

Stock

4000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

4000

Min.Order

4000

Region

AMERICA Order Now

MOUSER

Stock

38528

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

7863

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-22

Unit Price (US$)

0.775

Package

QFN-24L

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

125

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS9552
      16 channel LED driver with error detection current gain control and 12/16-bit PWM brightness control
      6.0
      2.44 MB
      PDF
      DS9552

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

    • 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
      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**
LED1642GWPTR
Active
QSOP24 Industrial Ecopack2 (**)
LED1642GWQTR
Active
QFN-24L Industrial Ecopack2
LED1642GWTTR
Active
TSSOP 24 Industrial Ecopack2
LED1642GWXTTR
Active
HTSSOP24 Industrial Ecopack2

LED1642GWPTR

Package:

QSOP24

Material Declaration**:

Marketing Status

Active

Package

QSOP24

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

LED1642GWQTR

Package:

QFN-24L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFN-24L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LED1642GWTTR

Package:

TSSOP 24

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP 24

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LED1642GWXTTR

Package:

HTSSOP24

Material Declaration**:

PDF XML

Marketing Status

Active

Package

HTSSOP24

Grade

Industrial

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.