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TLC5928DBQR Datasheet(PDF) 1 Page - Texas Instruments |
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TLC5928DBQR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page 1 FEATURES APPLICATIONS DESCRIPTION ¼ ¼ ¼ SIN SCLK LAT BLANK SOUT GND VCC TLC5928 IC1 OUT0 OUT15 VCC ¼ ¼ VLED VLED ¼ ¼ SIN SCLK LAT BLANK R IREF IREF SOUT TLC5928 ICn OUT0 OUT15 DATA SCLK BLANK ERROR READ ¼ VLED VLED R IREF IREF Controller GND VCC VCC 3 LAT TLC5928 www.ti.com...................................................................................................................................................... SBVS120B – JULY 2008 – REVISED OCTOBER 2008 16-Channel, Constant-Current LED Driver with LED Open Detection • LED Video Displays 23 • 16 Channels, Constant Current Sink Output with On/Off Control • Message Boards • Illumination • 35-mA Capability (Constant Current Sink) • 10-ns High-Speed Constant Current Switching Transient Time The TLC5928 is a 16-channel, constant current sink • Low On-Time Error LED driver. Each channel can be turned on/off by • LED Power-Supply Voltage up to 17 V writing serial data to an internal register. The constant • V CC = 3.0 V to 5.5 V current value of all 16 channels is set by a single • Constant Current Accuracy: external resistor. – Channel-to-Channel = ±1% The TLC5928 has two error detection circuits: one for LED open detection (LOD) and one for a pre-thermal – Device-to-Device = ±1% warning (PTW). LOD detects a broken or • CMOS Logic Level I/O disconnected LED and LEDs shorted to GND while • 35-MHz Data Transfer Rate the constant current output is on. PTW indicates a • 20-ns BLANK Pulse Width high temperature condition. • Readable Error Information: – LED Open Detection (LOD) – Pre-Thermal Warning (PTW) • Operating Temperature: –40°C to +85°C Typical Application Circuit (Multiple Daisy-Chained TLC5928s) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 PowerPAD is a trademark of Texas Instruments, Inc. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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