TLC5940's Big Brother: TLC5955 48-Ch, 16-Bit, PWM LED Driver w/DC,BC,Open-Short

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like tlc5940, double number of channels , pure spi control rather bastard spi + 6 additional pins bull of tlc5940.  signals removed , put spi:  xerr, dcprg, iref, blank, xlat.  gsclock stays reason, wouldn't have been nice if had put own oscillator onboard?  the 22v programming voltage history because guess onboard eeprom has been removed.  gs data must sent micro , latched in.  no resistor needed anymore set current.

a winner.

tlc5955 48-ch, 16-bit, pwm led driver w/ dc,bc,led open-short detection, , int  

description

the tlc5955 48-channel, constant-current sink driver. each channel has individually-adjustable, pulse width modulation (pwm), grayscale (gs) brightness control 65,536 steps , 128 steps of constant-current dot correction (dc). dc adjusts brightness deviation between channels. channels have 128-step global brightness control (bc). bc adjusts brightness deviation between r, g, b color group. eight-step maximum current control (mc) selects maximum output current range channels of each color group. gs, dc, bc, , mc data accessible serial interface port.

the tlc5955 has 2 error flags: led open detection (lod) , led short detection (lsd). error detection results can read serial interface port.

http://www.ti.com/lit/ds/symlink/tlc5955.pdf
http://www.ti.com/product/tlc5955

march 2014 announcement.  samples not available quite yet.

sounds great, there's never going dip package number of outputs. breakout board not practical same reason. have never worked smt components, , not ever could. read interesting article on futurelec's site using toaster oven, solder paste , stereo microscope. made sound easy!

paul


Arduino Forum > Using Arduino > LEDs and Multiplexing > TLC5940's Big Brother: TLC5955 48-Ch, 16-Bit, PWM LED Driver w/DC,BC,Open-Short


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