STP16CPC26 STMicroelectronics, STP16CPC26 Datasheet - Page 15
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STP16CPC26
Manufacturer Part Number
STP16CPC26
Description
Low voltage 16-bit constant current LED sink driver
Manufacturer
STMicroelectronics
Datasheet
1.STP16CPC26.pdf
(27 pages)
Specifications of STP16CPC26
Output Current
5 mA to 90 mA
Max Clock Frequency
30 MHz
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STP16CPC26
9
9.1
Current generators characteristics
Current setting
The current of all outputs is programmed through an external resistor connected to R-EXT
pin, as shown in
The curve in
connected to R-EXT pin, whereas the
Figure 15. Resistor for current programming
Figure 16. Output current vs R-EXT resistor
Table 8.
Output current [mA]
Recommended values of Rext for some output current value
Figure 16
10
20
40
60
90
5
Figure
describes the relation between the current and the resistor
15.
Doc ID 18469 Rev 2
R
4129
2005
ext
999
471
322
217
[Ω]
Table 8
shows how to set some typical current values.
Closer standard value (E24 series) [Ω]
Current generators characteristics
4300
1000
200
470
330
220
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