24-bit constant current LED sink driver with output error detection

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  • The STP24DP05 is a monolithic, low-voltage, low current power 24-bit shift register designed for LED panel displays. The device contains an 8 x 3-bit serial-IN, parallel-OUT shift register that feeds a 8 x 3-bit D-type storage register. In the output stage, twenty four regulated current sources were designed to provide 5-80 mA constant current to drive the LEDs.

    The 8 x 3 shift register data flow sequence order can be managed through two dedicated pins.
    The STP24DP05 has a dedicated pin to activate the outputs with a sequential delay, that prevents inrush current during output turn-ON.
    The device detection circuit checks 3 different conditions that can occur on the output line: short to GND, short to VO, or open line.
    The data detection results are loaded in the shift registers and shifted out via the serial line output.
    The detection functionality is activated with a dedicated pin or alternatively, through a logic sequence that allows the user to enter or exit detection mode.
    Through three external resistors, the user can adjust the output current for each 8-channel group, therefore controlling the light intensity of LEDs.
    The STP24DP05 guarantees a 20 V output driving capability, allowing the user to connect more LEDs in series.
    The high clock frequency, 25 MHz, makes the device suitable for high data rate transmission.
    The 3.3 V of voltage supply is useful for applications that interface any microcontroller from 3.3 V.

    Key Features

    • Low-voltage power supply down to 3 V
    • 8 x 3 constant current output channels
    • Adjustable output current through external resistors
    • Short and open output error detection
    • Serial data IN/parallel data OUT
    • Shift register data flow register control
    • Accepts 3.3 V and 5 V micro driver
    • Output current: 5-80 mA
    • 25 MHz clock frequency
    • High thermal efficiency package

Circuit Diagram

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STP24DP05BTR
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10000 0.991 TQFP 48 7x7x1.0 Tape And Reel - - EAR99
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Country of Origin:

MALAYSIA

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Distributor reported inventory date: 2019-10-18

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DIGIKEY

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4641

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1

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WORLDWIDE Order Now

FUTURE

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39351

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WORLDWIDE Order Now

MOUSER

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5621

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1

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1255

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1

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Distributor reported inventory date: 2019-10-18

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STP24DP05BTR

Marketing Status

Active

Quantity

10000

Unit Price (US$)

0.991*

Distributor availability ofSTP24DP05BTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4641 1 Order Now
FUTURE WORLDWIDE 39351 1 Order Now
MOUSER WORLDWIDE 5621 1 Order Now
Farnell Element14 EUROPE 1255 1 Order Now

Distributor reported inventory date: 2019-10-18

Distributor Name

DIGIKEY

Stock

4641

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

39351

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

5621

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1255

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-18

Unit Price (US$)

0.991

Package

TQFP 48 7x7x1.0

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-

(max)

-

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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      24-bit constant current LED sink driver with output error detection
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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STP24DP05BTR
Active
TQFP 48 7x7x1.0 Industrial Ecopack2

STP24DP05BTR

Package:

TQFP 48 7x7x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TQFP 48 7x7x1.0

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.