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Motorola MOSCAD-M RTU Hardware Manual page 94

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V_Radio
C15
C73
100.n
0.33u
Radio_GND
SH1
SHIELD
1
VFloat_GND
VC
6
BOOST
5
VIN
SINC_SHDN_
3
VSW
FB_SENSE*
GND
4
C8
C7
22u
22u
to External Radio
J15-1
J15-2
Header 2-pins
RV6
R210
D8
C77
C61
1.5n
330.n
L1
10u
VFloat_GND
sense_R1
2
7
sense_R2
U24
LT13741HVIR
R37
NEG
C129
12.K
100.p
D31
POS
sense_R1
49.9K
R318
Vout = 6V
76.8K
R587
Vout = 6.5V
324.K
R333
Vout = 7.5V
sense_R2
61.9K
R583
Vout = 9V
40.2K
R321
Vout = 9.6V
Rds(on) =~30mOHM
0.04
1W
VFloat_GND_F
R367
51.K
R366
51.K
Bat_GND
N.C.
0
R85
L21
10u
R35
27.4K
C6
VFloat_GND
100u
V_DO
Q72
R356
100.K
For 5V Relay option
R365
51.K
U11
MC33267D2TR4
Q25
N.C.
5
C227
100.u
R202
N.C.
N.C.
0.
V_DO_GND
R795
R794
0
0
N.C.
N.C.
E7
E8
57R01
57R01
C104
C80
C106
C11
120.p
470.p
39.p
220.u
Switching Freq=500Khz
Without Jumper Vout = 8V
P11-1
P11-2
P11-3
P11-4
P11-5
Jumper
P11-6
Jumper chooses the demanded VFloat
P11-8
P11-7
P11-9
P11-10
VFloat
C58
0.1u
N.C.
1
VCC
2
RESET
OUTPUT
4
DELAY
N.C.
GND
3
C228
1.u
VFloat_GND
C78
C103
C72
C60
C128
1.n
10.n
100.n
1u
100.p
E9
57R01
N.C.
R796
0
VFloat_GND_F
R1=R2(Vout-2.42)
2.42
5.1
73D02962C89-O
SHEET 21 OF 23

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