WT7527V
Rev. 1.01
APPLICATION CIRCUIT
+5V
+5VSB
D1
1K
R4=100
+5VSB
WT7527S
PGO
D2
D3
PGI
PGI
PGO
VCC
V5
+5VSB
+12V
0.1uF
22uF
+5VSB
10K
GND
FPOB
+3.3V
+5V
R5=300
PSONB
PSONB
I12A
RI
V33
V12A
I33
0.01uF
22uF
R12, 1%
30K, 1%
22uF
R10, 1%
I12B
V12B
I5
VX
+12VA
22uF
R14, 1%
+12VB
22uF
R16, 1%
NOTE1:
NOTE2:
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.
NOTE3:
NOTE4:
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.
NOTE5:
Weltrend Semiconductor, Inc.
Page 7
WELTREND [ WELTREND SEMICONDUCTOR ]
