WT7527V
Rev. 1.01
APPLICATION CIRCUIT
PSONB
+5VSB
R5=300
10K
0.01uF
+5VSB
PGI
30K, 1%
WT7527S
+5V
1K
R4=100
PGI
GND
FPOB
PSONB
I12A
RI
I12B
V12B
PGO
VCC
V5
V33
V12A
I33
I5
VX
0.1uF
22uF
22uF
R12, 1%
+5VSB
D1
22uF
D2
D3
R10, 1%
22uF
R14, 1%
22uF
R16, 1%
PGO
+5VSB
+12V
+3.3V
+5V
+12VA
+12VB
NOTE1:
NOTE2:
NOTE3:
NOTE4:
NOTE5:
The series resistor R5 at PSONB can not be omitted.(R5 = 300Ω is suggested)
The series resistor R4 = 100Ω and diode D1 at PGO is suggested. If not, should add on
testing-board or burning-board at least.
Supply and signal must pass through the capacitor first before into IC.
The capacitor 0.1uF & 22uF at VCC is suggested. And diode D2 & D3 at VCC can not be
omitted
When VCC use single power, diode D2 at VCC can not be omitted.
Weltrend Semiconductor, Inc.
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