Low voltage 16-bit constant current LED sink driver with outputs error detection

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.

Key Features

  • ESD protection 2.0 kV HBM, 200 V MM
  • Available in high thermal efficiency TSSOP exposed pad
  • Output current: 20-85 mA
  • 3.3 V micro driver-able
  • Low voltage power supply down to 3 V
  • Adjustable output current through external resistor
  • 16 constant current output channels
  • Serial data IN/Parallel data OUT
  • 30 MHz clock frequency
  • Short and open output error detection

Circuit Diagram

0 Download

circuit_diagram_16538_thumbnail.png

Resources

Technical Documentation

Product Specifications
Description Version Size
DS6551 DS6551: Low voltage 16-bit constant current LED sink driver with outputs error detection 2.1 1 MB
Application Notes
Description Version Size
AN3981 AN3981: LED array drivers 1.1 3 MB

Publications and Collaterals

Brochures
Description Version Size
Brochure Power management guide 05.2016 4 MB
Support & Community


Sample & Buy

Part Number Marketing Status Quantity Unit Price (US$) * Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STP16DPS05PTR NRND 1000 0.703 QSOP24 Tape And Reel - - NEC EAR99 - MORE INFO
STP16DPS05TTR Active 1000 0.725 TSSOP 24 Tape And Reel - - NEC EAR99 PHILIPPINES MORE INFO
STP16DPS05XTTR Active 1000 0.746 HTSSOP24 Tape And Reel - - NEC EAR99 PHILIPPINES MORE INFO
STP16DPS05MTR Active 1000 0.769 SO-24 Tape And Reel - - NEC EAR99 MALAYSIA MORE INFO
test

(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STP16DPS05PTR NRNDQSOP24IndustrialEcopack1
STP16DPS05TTR ActiveTSSOP 24IndustrialEcopack2
STP16DPS05XTTR ActiveHTSSOP24IndustrialEcopack2
STP16DPS05MTR ActiveSO-24IndustrialEcopack1 0 0
test

(**) 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.

×