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TLC59281 Fiches technique(PDF) 7 Page - Texas Instruments |
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TLC59281 Fiches technique(HTML) 7 Page - Texas Instruments |
7 / 23 page TLC59281 www.ti.com SBVS139 – JANUARY 2010 TERMINAL FUNCTIONS TERMINAL NAME DBQ RGE I/O DESCRIPTION Serial data input for driver on/off control. When SIN = high level, data '1' are written into LSB SIN 2 23 I of the on/off control shift register at the rising edge of SCLK. Serial data shift clock. Schmitt buffer input. All data in the on/off control shift register are SCLK 3 24 I shifted toward the MSB by 1-bit synchronization of SCLK. A rising edge on SCLK is allowed 100 ns after a rising edge of LAT. Edge triggered latch. The data in the on/off control data shift register are transferred to the on/off control data latch at this rising edge. At the same time, the data in the on/off control shift LAT 4 1 I register are replaced with TI reserved data for production test. LAT must be toggled only once after the shift data are updated to avoid the on/off control latch data being replaced with TI reserved data in the shift register. The reserved data is not a fixed number. Blank, all outputs. When BLANK = high level, all constant-current outputs (OUT0–OUT15) are BLANK 21 18 I forced off. When BLANK = low level, all constant-current outputs are controlled by the on/off control data in the data latch. Constant-current value setting, OUT0–OUT15 sink constant-current is set to desired value by IREF 23 20 I/O connection to an external resistor between IREF and GND. Serial data output. This output is connected to the MSB of the on/off data shift register. SOUT SOUT 22 19 O data changes at the rising edge of SCLK. Constant-current output. Each output can be tied together with others to increase the OUT0 5 2 O constant-current. Different voltages can be applied to each output. OUT1 6 3 O Constant-current output OUT2 7 4 O Constant-current output OUT3 8 5 O Constant-current output OUT4 9 6 O Constant-current output OUT5 10 7 O Constant-current output OUT6 11 8 O Constant-current output OUT7 12 9 O Constant-current output OUT8 13 10 O Constant-current output OUT9 14 11 O Constant-current output OUT10 15 12 O Constant-current output OUT11 16 13 O Constant-current output OUT12 17 14 O Constant-current output OUT13 18 15 O Constant-current output OUT14 19 16 O Constant-current output OUT15 20 17 O Constant-current output VCC 24 21 — Power-supply voltage GND 1 22 — Power ground Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): TLC59281 |
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