STP16CPC26 STMicroelectronics, STP16CPC26 Datasheet - Page 16

• Manufacturer Part Number: STP16CPC26
• Description: Low voltage 16-bit constant current LED sink driver
• Manufacturer: STMicroelectronics

Specifications of STP16CPC26

• Output Current: 5 mA to 90 mA
• Max Clock Frequency: 30 MHz

Current generators characteristics
9.2
9.3
9.4
16/27
Current accuracy
A typical current accuracy of ±1% (±3% maximum) between channels is guaranteed at 22
mA and 55 mA output current (refer to
between ICs.
Generators voltage drop
In order to correctly regulate the current, a minimum dropout voltage must be assured
across the current generators.
Figure 17
over the current range. However it is recommended to use value of V
than those indicated in
Figure 17. Dropout voltage vs output current
Table 9.
Turn-on and turn-off characteristics
Figure 18
programmed current of 20 mA per channel and a drop across the current generators of 0.8
V.
and
and
Output current [mA]
Dropout voltage vs output current
Table 9
19
shows the turn-on and turn-off time of an output of STP16CPC26 with a
10
20
40
60
90
5
provides just an indicative idea about the dropout voltage to assure
Figure 17
Doc ID 18469 Rev 2
and
Table
Table
9.
V
5) and ±6% (maximum) current accuracy
DROP
@ 3.3V [mV]
170
350
530
820
44
85
DROP
V
DROP
slightly higher
STP16CPC26
@ 5V [mV]
170
330
500
770
44
85