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STP16DPS05

Low voltage 16-bit constant current LED sink driver with outputs error detection
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The STP16DPS05 is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The device contains a 16-bit serial-in, parallel-out shift register that feeds a 16-bit D-type storage register. In the output stage, sixteen regulated current sources were designed to provide 5-100 mA constant current to drive the LEDs.

The STP16DP05 features open and short LED detections on the outputs.The STP16DP05 is backward compatible with STP16C/L596.The 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 register and shifted out via the serial line output.

The detection functionality is implemented without increasing the pin count number, through a secondary function of the LATCH and output enable 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 STP16DPS05 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/DM2 pin.

The STP16DPS05 guarantees a 20 V output driving capability, allowing users to connect more LEDs in series. The high clock frequency, 30 MHz, makes the device suitable for high data rate transmission. The 3.3 V voltage supply is well useful for applications that interface any 3.3V micro. Compared with a standard TSSOP package, the TSSOP exposed pad increases heat dissipation capability by a 2.5 factor.

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Errata Sheet
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Datasheet

Key Features

  • Low voltage power supply down to 3 V
  • 16 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: 20-85 mA
  • 30 MHz clock frequency
  • Available in high thermal efficiency TSSOP exposed pad
  • ESD protection 2.0 kV HBM, 200 V MM

Circuit Diagram

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS6551: Low voltage 16-bit constant current LED sink driver with outputs error detection
2.1 1,095 KB

Application Notes

Description Version Size
pdf
AN3981: LED array drivers
1.1 3,694 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
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Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STP16DPS05MTRActiveSO-24Tape And Reel_-No availability reported, please contact our Sales officeEcopack1-
STP16DPS05PTRActiveQSOP24Tape And Reel_-No availability reported, please contact our Sales officeEcopack1-
STP16DPS05TTRActiveTSSOP 24Tape And Reel_-No availability reported, please contact our Sales officeEcopack2-
STP16DPS05XTTRActiveHTSSOP24Tape And Reel_-No availability reported, please contact our Sales officeEcopack2-

(*) 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
(**) 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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