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TLC5949PWPR Datasheet(PDF) 1 Page - Texas Instruments |
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TLC5949PWPR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 51 page  ¼ SIN SCLK LAT GSCLK SOUT GND VCC Device 1 VCC ¼ ¼ ¼ SIN SCLK LAT GSCLK R IREF IREF SOUT Device n OUT0 OUT15 DATA SCLK GSCLK ¼ R IREF IREF Controller GND VCC VCC 3 LAT ¼ ¼ OUT0 OUT15 ¼ DataRead VLED TLC5949 www.ti.com SBVS219A – DECEMBER 2012 – REVISED DECEMBER 2012 16-Channel, 12-Bit, ES-PWM, Full Self-Diagnosis LED Driver for 7-Bit Global BC LED Lamp Check for Samples: TLC5949 1 FEATURES 2 • 16 Constant-Current Sink Output Channels • Pre-Thermal Warning (PTW) • Sink Current Capability with • Four-Channel Grouped Delay Switching to Maximum BC Data: 2 mA to 45 mA Prevent Inrush Current • Global Brightness Control (BC): • Operating Temperature: –40°C to +85°C – 7-Bit (128 Steps) with 25% to 100% Range APPLICATIONS • Grayscale Control (GS) with Enhanced • LED Video Displays Spectrum or Conventional PWM: • LED Signboards – 12-Bit (4096 Steps) • LED Power-Supply Voltage: Up to 10 V DESCRIPTION • VCC: 3.0 V to 3.6 V The TLC5949 is a 16-channel, constant-current sink • Constant-Current Accuracy: LED driver. Each channel has an individually- – Channel-to-Channel: ±0.6% (typ), ±2% (max) adjustable, pulse width modulation (PWM) grayscale (GS) brightness control with 4096 steps. All channels – Device-to-Device: ±1% (typ), ±4% (max) have a 128-step global brightness control (BC). BC • Data Transfer Rate: 33 MHz adjusts brightness deviation with other LED drivers. • Grayscale Control Clock: 33 MHz GS and BC data are accessible with a serial interface port. • Auto Display Repeat and Auto Data Refresh • Display Timing Reset The TLC5949 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage • Power-Save Mode to Minimize VCC Current detection (OLD), reference current terminal short flag • LOD and LSD with Invisible Detection detection (ISF), pre-thermal warning (PTW), and Mode (IDM) thermal error flag (TEF). The error detection results • Output Leakage Detection (OLD) can be read with a serial interface port. • Current Reference Terminal Short Flag (ISF) • Thermal Shutdown (TSD) and Error Flag (TEF) Typical Application Circuit (Multiple Daisy-Chained TLC5949s) 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 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2012, 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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