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5
VOLTAGE SENSE
D
C
CURRENT SENSE
B
A
5
4
R36
R37
16K
R38
V_S_DCB
AN0
16K
C45
+5.0V
0.1uF
U14A
3
+
+5.0V
2
-
LM393A
R40
10K
R41
R43
R42
16K
I_S_DCB
AN1
16K
C46
+5.0V
0.1uF
5
+
+5.0V
6
-
R45
10K
4
Figure A-6. UNI-3 Over-Voltage and Current Sense
3
UNI-3 OVER-VOLTAGE
FAULT DETECTION
1M
+3.3V
DSP PWM
R39
FAULT SENSE 0
5.1K
1
FAULT0
UNI-3 OVER-CURRENT
FAULT DETECTION
1M
DSP PWM
+3.3V
FAULT SENSE 1
R44
5.1K
U14B
7
FAULT1
LM393A
Title
U N I - 3 O V E R V O L T A G E A N D C U RRENT SENSE
D o c u ment
Size
N u mber
B
D a t e :
Monday, June 22, 1998
3
2
1
Wireless Subscriber Division
6 5 0 1 William Cannon Drive West
Austin, TX, 78735-8598
( 5 1 2 ) 8 9 5 - 3 2 3 0
F A X : ( 5 1 2 ) 8 9 5 - 4 5 5 6
MD:OE314
D S P 5 6 8 0 3 EVM.DSN
D e s i g n er:
Development Tools
S h e e t
2
1
D
C
B
A
R e v.
1 . 3
6
of
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