DatasheetsPDF.com

DM631 Dataheets PDF



Part Number DM631
Manufacturers SiTi
Logo SiTi
Description 16-CHANNEL CONSTANT CURRENT LED DRIVER
Datasheet DM631 DatasheetDM631 Datasheet (PDF)

DM631 Version : A.003 Issue Date : 2008/05/12 File Name : SP-DM631-A.003.doc Total Pages : 24 16-CHANNEL CONSTANT CURRENT LED DRIVER WITH PROGRAMMABLE PWM OUTPUTS 9 7 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Tel:886-3-5645656 Fax:886-3-5645626 SILICON TOUCH TECHNOLOGY INC. 9 7 1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel:886-3-5645656 Fax:886-3-5645626 DM631 DM631 16-CHANNEL CONSTANT CURRE.

  DM631   DM631



Document
DM631 Version : A.003 Issue Date : 2008/05/12 File Name : SP-DM631-A.003.doc Total Pages : 24 16-CHANNEL CONSTANT CURRENT LED DRIVER WITH PROGRAMMABLE PWM OUTPUTS 9 7 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Tel:886-3-5645656 Fax:886-3-5645626 SILICON TOUCH TECHNOLOGY INC. 9 7 1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel:886-3-5645656 Fax:886-3-5645626 DM631 DM631 16-CHANNEL CONSTANT CURRENT LED DRIVER WITH PROGRAMMABLE PWM OUTPUTS General Description DM631 is a 16-channel constant current sink LED driver. Each channel has adjustable 12-bits (4096 steps) grayscale PWM control current outputs. It incorporates shift registers, data latches, constant current circuitry with current value set by an external resistor, selectable oscillator source for PWM function, and built-in LED open detection circuit to detect error status. It is specifically designed for LED display or lighting applications. Features z Constant-current outputs: 5mA to 90mA adjustable by one external resistor z 12-bit PWM control current outputs for each channel z Maximum output voltage: 17V z Maximum clock frequency: 25MHz z Selectable internal/external PWM reference clock z PWM free-running capability (refresh rate (~4.4KHz) with internal oscillator (~ 18 MHz)) z Build-in real-time LED open detection z Package and pin assignment (except QFN32) compatible to pure LED drivers series (ST2221C, DM134/5/6, DM13C) z Power supply voltage: 3.3V to 5.5V Applications z Indoor/Outdoor LED Video Display z LED Variable Message Signs (VMS) System z LED Decorative Lighting Package Types z SOP24, SOP24B, SSOP24, TSSOP24E (with exposed pad), QFN32 (with exposed pad) 16-channel 12-bit PWM Constant Current LED Driver Version:A.003 、、, Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page 1 SILICON TOUCH TECHNOLOGY INC. 9 7 1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel:886-3-5645656 Fax:886-3-5645626 Block Diagram OUT 0 OUT 1 OUT 15 DM631 VCC GND LED Open Detector (0) LED Open Detector (1) LED Open Detector (15) Internal Oscillator Constant Current Driver Constant Current Driver (0) (1) Constant Current Driver (15) REXT 12-bit Counter 12-bit PWM Generator 12-bit PWM Generator (0) (1) LAT 12 12 12-bit Latch Register (0) 12-bit Latch Register (1) DAI 12 12 12-bit Shift Register (0) 12-bit Shift Register (1) DCK 12-bit PWM Generator (15) 12 12-bit Latch Register (15) 12 12-bit Shift Register (15) SOMODE /GCK DAO 16-channel 12-bit PWM Constant Current LED Driver Version:A.003 、、, Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page 2 SILICON TOUCH TECHNOLOGY INC. 9 7 1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel:886-3-5645656 Fax:886-3-5645626 Pin Connection DM631 R EXT DAO SOMODE / GCK OUT15 OUT14 OUT13 OUT12 OUT11 GND DAI DCK LAT OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 1 24 2 23 3 22 4 SOP24 21 5 20 SOP24B 6 19 7 SSOP24 18 8 17 9 16 TSSOP24E 10 15 11 ( top view ) 12 14 13 VCC REXT DAO SOMODE/GCK OUT 15 OUT 14 OUT 13 OUT 12 OUT 11 OUT 10 OUT 9 OUT 8 OUT10 OUT9 OUT8 GND GND OUT7 OUT6 OUT5 2425 26 27 28 29 30 31 321 23 2 22 3 21 QFN32 20 19 ( bottom view ) 4 5 6 18 7 17 8 16 15 14 13 12 11 10 9 GND GND VCC VCC GND GND GND GND DAI DCK LAT OUT0 OUT1 OUT2 OUT3 OUT4 Pin Description PIN No. SOP24/SOP24B/SSOP24 /TSSOP24E: 1 TSSOP24E, QFN32: exposed pad QFN32: 1, 2, 5, 6, 7, 8, 20,21 PIN NAME GND Ground terminal. FUNCTION SOP24/SOP24B/SSOP24 /TSSOP24E: 2 QFN32: 9 DAI Serial data input terminal. SOP24/SOP24B/SSOP24 /TSSOP24E: 3 QFN32: 10 DCK Synchronous clock input terminal for serial data transfer. Data is sampled at the rising edge of DCK. SOP24/SOP24B/SSOP24 /TSSOP24E: 4 QFN32: 11 LAT Input terminal of data strobe: (level trigger) ‘H’ means latch register keep data ‘L’ means latch register gets data SOP24/SOP24B/SSOP24/TSSOP24E: 5~20 OUT0~15 Sink constant-current outputs (open-drain). QFN32: 12~19, 22~29 SOP24/SOP24B/SSOP24 /TSSOP24E: 21 QFN32: 30 SOP24/SOP24B/SSOP24 /TSSOP24E: 22 QFN32: 31 SOMODE /GCK Serial Out Mode Selection(SOMODE) : ‘H’: DAO is shifted out and synchronized to falling edge of DCK, ‘L’ : DAO is shifted out and synchronized to rising edge of DCK. Gray Scale Clock(GCK) : Input terminal for PWM operation. DAO Serial data output terminal. SOP24/SOP24B/SSOP24 /TSSOP24E: 23 QFN32: 32 SOP24/SOP24B/SSOP24 /TSSOP24E: 24 QFN32: 3, 4 REXT External resistors connected between REXT and GND for output current value setting. VCC Supply voltage terminal. 16-channel 12-bit PWM Constant Current LED Driver Version:A.003 、、, Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page 3 SILICON TOUCH TECHNOLOGY INC. 9 7 1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel:886-3-564565.


Pt100 DM631 DM632


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)