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TLC5928PWP Datasheet(PDF) 1 Page - Texas Instruments |
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TLC5928PWP Datasheet(HTML) 1 Page - Texas Instruments |
1 / 32 page 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 SBVS120E – JULY 2008 – REVISED JANUARY 2011 16-Channel, Constant-Current LED Driver with LED Open Detection Check for Samples: TLC5928 1 FEATURES APPLICATIONS • 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 DESCRIPTION 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 • VCC = 3.0 V to 5.5 V constant-current value of all 16 channels is set by a • Constant-Current Accuracy: single 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. © 2008–2011, 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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