Smiths Medical Medfusion 3000 Series, Technical & Service Manual

Page: 149 / 184

Schematics & PCB Assemblies
143 40-5648-51B
Battery Gauge Schematic
J2
CON1
BA
TTER
Y_NEG_LEAD
R7 100.0K 0.5% 1/8
W
1206 R6 499.0K 0.5% 1/8
W
1206
+
–
VSR
R4 0.2 1% 1
W
2512
R5 100K 5% 1/10
W
0805
C5 0.1U 10% X7R 50
V
1206
J1
CON1
BA
TTER
Y_POS_LEAD
J3
8 9
11
15 14 12 13
1 3 5 7 9
2 4 6 8
10
POWER_GND
HEADER 5X2 2mm-DIP-2X5
CHARGE_DETECT
2
1 4
R8 1M 5% 1/10 W 0805
C2 1000P 5% NPO 50 V 0805
VLOW_BATTERY*
BATTERY_DATA CHARGE*
C6 0.1U 10% X7R 50
V
1206
R2 1.69M 1% 1/10 W 0805 R 1 5.90M 1% 1/10 w 0805
C1 0.1U 10% X7R 50 V 1206
C3 0.1U 10% X7R 50 V 1206
Vth Clr
3
U1
Vs Gnd
5
Out MAX835 SOT23-5
1 16 10
B
A
T
T
E
R
Y
C
A
P
A
C
IT
Y
S
E
LE
C
T
IO
N
3
2 3
EMPTY
U3
DATA
VCC DISP
4 5 6 7
GND SR SB REF CHRG
SEG6
BQ2012 SO
-16
LCOM PRG1 PRG2 PRG3 PRG4 PRG5
R11 See Chart 5% 1/10 w 0805
R10 See Chart 5% 1/10 W 0805
R12 See Chart 5% 1/10 W 0805
R13 See Chart 5% 1/10 W 0805
R14 See Chart 5% 1/10 W 0805 R15 See Chart 5% 1/10 W 0805
R16 See Chart 5% 1/10 W 0805
R17 See Chart 5% 1/10 W 0805
PRG1
PRG2
PRG3
PRG4
C7 1000P 5% NPO 50 V 0805
R9 10K 5% 1/10 W 0805
1 2
D1
3
2 4
1N4148 200 mAS OT23
+
C8 10U 20% TANT 10 V SMT_A
+
5
1
U2
3.3V
C4 10U 20% TANT 10 V SMT_A
VIN NC1
GND
NC2
VO
S812 SOT23-5