Datasheet

Thermal shutdown
STP16CPC26
16/28
DocID18469 Rev 6
9.3 Generators voltage drop
In order to correctly regulate the current, a minimum dropout voltage must be assured
across the current generators.
Figure 16: "Dropout voltage vs output current" and Table 9: "Dropout voltage vs output
current" provides just an indicative idea about the dropout voltage to assure over the
current range. However it is recommended to use value of V
DROP
slightly higher than those
indicated in Figure 16: "Dropout voltage vs output current" and Table 9: "Dropout voltage vs
output current".
Figure 16: Dropout voltage vs output current
Table 9: Dropout voltage vs output current
Output current [mA]
V
DROP
@ 3.3 V [mV]
V
DROP
@ 5 V [mV]
5
44
44
10
85
85
20
170
170
40
350
330
60
530
500
90
820
770
10 Thermal shutdown
The STP16CPC26 is featured with a thermal shutdown. This protection is triggered if the
junction temperature reaches 170 °C. When the thermal shutdown is activated, all outputs
are turned off independently on the data latched. Once the temperature decreases (thermal
shutdown hysteresis is typically 15 °C), the outputs are enabled again and the device
keeps on working.
Once the temperature decreases (thermal shutdown hysteresis is typically 15°C), the
outputs are enabled again and the device keeps on working.