Datasheet
Feed forward test circuit
Primary side voltage sensing test circuit
Ramp generator
1
2
3
J19
R63
10K
R64
10K
R65
10K
C54
0.1uF
TP18
TP19
TP20
TP21
Q3
2N7002
1
2
J41
R61
20k
Q4
2N7002
TP22
AGND
+3_3V
AGND
AGND
+3_3V
Schematics
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Figure 9. UCD3138OL64EVM-031 Schematics (Misc) 9 of 9
12
Using the UCD3138OL64EVM-031 SLUUA10–October 2012
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