Technical Reference Note
Remote ON/OFF
Rev.02.06.15_#1.2
AVO75B-36S3V3
Page 20
Either positive or negative remote ON/OFF logic is availablein AVO75B-36S3V3. The logic is CMOS and TTL compatible.
Below is the detailed internal circuit and reference in AVO75B-36S3V3.
11V
+Vin
Remote
ON/OFF
33K
20K
Remote
ON/OFF
64.9k
4.22k
PWM
Controller
PWM
controller
2200pF
470PF
10K
Negative logic
Positive logic
Figure 22 Remote ON/OFF internal diagram
The voltage between pin Remote ON/OFF and pin Vin- must not exceed the range listed in table “Feature characteristics”
to ensure proper operation. The external Remote ON/OFF circuit is highly recommended as shown in Figure 23..
Isolated remote ON/OFF circuit
Non-isolated remote ON/OFF circuit
Figure 23 External Remote ON/OFF circuit
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