STP08DP05

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Design Win

Low-voltage 8-bit constant current LED sink with full outputs error detection

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Product overview

Description

The STP08DP05 is a monolithic, low voltage, low current power 8-bit shift register designed for LED panel displays. The STP08DP05 contains a 8-bit serial-in, parallel-out shift register that feeds a 8-bitD-type storage register. In the output stage, eight regulated current sources were designed to provide 5-100 mA constant current to drive the LEDs.

The STP08DP05 is backward compatible in the functionality and footprint with STP8C/L596 and extends its functionality with open and short detection on the outputs. The detection circuit checks 3 different conditions that can occur on the output line: short to GND, short to VOor open line. The data detection results are loaded in the shift register and shifted out via the serial line output.

The detection functionality is implemented without increasing the pin number, through a secondary function of the output enable and latch pin (DM1 and DM2 respectively), a dedicated logic sequence allows the device to enter or leave from detection mode. Through an external resistor, users can adjust the STP08DP05 output current, controlling in this way the light intensity of LEDs, in addition, user can adjust LED’s brightness intensity from 0% to 100% via OE/DM2pin.

The STP08DP05 guarantees a 20 V output driving capability, allowing users to connect more LEDs in series. The high clock frequency, 30 MHz, also satisfies the system requirement of high volume data transmission. The 3.3 V of voltage supply is well useful for applications that interface any micro from 3.3 V. Compared with a standard TSSOP package, the TSSOP exposed pad increases heat dissipation capability by a 2.5 factor.

  • All features

    • Low voltage power supply down to 3 V
    • 8 constant current output channels
    • Adjustable output current through external resistor
    • Short and open output error detection
    • Serial data IN/parallel data OUT
    • 3.3 V micro driver-able
    • Output current: 5-100 mA
    • 30 MHz clock frequency
    • Available in high thermal efficiency TSSOP exposed pad
    • ESD protection 2.5 kV HBM, 200 V MM

Circuit Diagram

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STMicroelectronics - STP08DP05

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STP08DP05MTR
Active
SO-16 Industrial Ecopack2
STP08DP05TTR
Active
TSSOP-16L Industrial Ecopack2 (**)
STP08DP05XTTR
Active
HTSSOP16 Industrial Ecopack2

STP08DP05MTR

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STP08DP05TTR

Package:

TSSOP-16L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-16L

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

STP08DP05XTTR

Package:

HTSSOP16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

HTSSOP16

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.

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STP08DP05MTR

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STP08DP05TTR Active

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STP08DP05TTR

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STP08DP05XTTR Active

Budgetary Price (US$)*/Qty:
-
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ECCN (US):
ECCN (EU):

Part Number:

STP08DP05XTTR

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