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| TLC5904 Datasheet, PDF (21/27 Pages) Texas Instruments – LED DRIVER | |||
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PRINCIPLES OF OPERATION
TLC5904
LED DRIVER
SLLS391 â NOVEMBER 1999
constant output current
90
80
70
60
50
40
30
20
10
0
0.1
1.0
10.0
NOTE: Conditions: VOUT = 1.0V, VIREF = 1.24V
RIREF â kâ¦
IOLC(mA) â
W VIREF(V)
RIREF(k )
37
W RIREF (k ) â
47
IOLC(mA)
NOTE: Shows the output current at the 16 bit mode. and at the 8 bit mode (MODE=L). Output current is the sum of both outputs. This sum current
should be set from 10 mA to 120 mA. The resistor, RIREF, should be located as close to the IREF terminal as possible to avoid the noise
influence.
Figure 8. Current on Constant Current Output vs External Resistor
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
21
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