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LED2472GQTR 数据表(PDF) 5 Page - STMicroelectronics

部件名 LED2472GQTR
功能描述  24-channels LED driver with error detection and gain control
PDF  39 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LED2472GQTR 数据表(HTML) 5 Page - STMicroelectronics

  LED2472GQTR Datasheet HTML 1Page - STMicroelectronics LED2472GQTR Datasheet HTML 2Page - STMicroelectronics LED2472GQTR Datasheet HTML 3Page - STMicroelectronics LED2472GQTR Datasheet HTML 4Page - STMicroelectronics LED2472GQTR Datasheet HTML 5Page - STMicroelectronics LED2472GQTR Datasheet HTML 6Page - STMicroelectronics LED2472GQTR Datasheet HTML 7Page - STMicroelectronics LED2472GQTR Datasheet HTML 8Page - STMicroelectronics LED2472GQTR Datasheet HTML 9Page - STMicroelectronics Next Button
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LED2472G
List of figures
List of figures
Figure 1.
Pinout for TQFP48EP (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2.
Pinout for MLPQ40 (top view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3.
Typical application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 4.
Timing for clock, serial-in, serial-out, latch enable and outputs . . . . . . . . . . . . . . . . . . . . . 15
Figure 5.
OE and Outputs timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 6.
LED2472G simplified block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 7.
Input terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 8.
Data input time diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 9.
Digital key timing diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 10.
Configuration register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 11.
SDO Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 12.
Gradual delay on first four channels of RED color group . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 13.
Different color sequence in data loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 14.
Iout vs. gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 15.
External resistor to connect to ISET pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 16.
Error detection process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 17.
LE high for 14 CLK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 18.
Typical dropout voltage vs. output current (only one channel ON) . . . . . . . . . . . . . . . . . . . 31
Figure 19.
TQFP48-EP package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 20.
TQFP48-EP recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 21.
MLPQ40-EP 5x5 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 22.
MLPQ40-EP 5x5 recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37



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