Open Drain Outputs
Internal pull-up
on PBRST'
RTC_SDAT
RTC_SCLK
SQW_OUT
PWR_CMPN
2
V C M P 2
BAT_NEWN
2
V C M P N 2
WD_STB 2
BAT_LOWN
2
V C M P N
2
V 5 A C K
2
KEYPD1 2
UC_RSTN 2
1V21B
2
LCD1_COM1 3
LCD_SEGT1N 2
VCHK_OK 2
PWR_CMPN
2
1V21B
2
PWR_ON
2
SPO2V_GOOD 2
BAT_CRITN
2
LCD1_TEST 3
1V21B
2
V5DIG
3V0
1V8
V O N
3V0
3V0
VBATTERY
3V0
V C M P
V O N
1V8
VON
V O N
V C M P
3V0
V C M P
1V8
3V0
3V0
3V0
VON
V O N
V O N
C30
100pF
R49
316K
C32
0.1uF
U2
DS1832S
1
2
3
4
5
6
7
8
PBRST
TD
TOL
GND
RST
RST
ST
V C C
U6
LT1761ES5-1.8
4
5
1
2
3
BYP
OUT
IN
GND
SDN
J1
PButton
1
2
U5
LTC1779ES6
1
2
3
4
5
6
ITH/RUN
GND
F B
SENSE-
VIN
S W
Q1
IRLML6401
3
1
2
C22
100pF
T21
+
-
+
-
-
-
+
+
V+GND
U8
LP339
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R11
1.0M
C18
0.1uF
C1 0.1uF
R48
453K
R73
562K
C69
0.1uF
R12
1.0M
R74
649K
R3
1.0M
T1
R9
1.0M
T6
C11
1uF
D1
3.6V
D2
MBR0520L
R8
30.1K
C9
0.1uF
C3
22mF
R10
1.0M
T2
T4
R42
1 M
+
-
+
-
-
-
+
+
V+ GND
U7
LP339
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R17
2
R4 49.9K
C17
47uF
T3
R13
1.0M
U19
LTC2902-1
4
14
12
11
10
5
2
16
1
15
6
8
7
9
3
13
V 1
V 2
V R E F
Vpg
GND
CRT
C O M P 1
C O M P 2
C O M P 3
C O M P 4
RST
RDIS
T0
T1
V3
V4
U3
DS1338Z-3
1
2
3
4
5
6
7
8
X 1
X 2
V B A T
GND
S D A
SCL
SQW/OUT
V C C
C20
4.7uF
C28
100pF
R2
1.0M
R50
523K
RP5
30K
1
8
2
7
3
6
4
5
R23
20K
C24
100pF
R5
1.0M
R26
82.5K
Y1
32.768KHz
C8 0.1uF
C27
0.1uF
R77
30.1K
C10
0.1uF
C67
0.1uF
R1 5.11K
C29
100pF
T9
U9
TC1034ECT
1
2
3
4
5
Out
Vdd
IN+
IN-
Vss
R6
10K
C19
0.01uF
R24
221K
T7
T8
L1
10uH
T5
C23
100pF
C21
100pF
R72
150K
R7
10K
C26
0.1uF
C68
0.1uF
NPB-40
97
Technical Discussion
Figure 34
User Interface PCB
Schematic Diagram
(Sheet 1 of 3)
Содержание Oximax NPB-40
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Страница 5: ...Contents NPB 40 iii Power Supply 81 Power Supply Monitoring 81 Index 103...
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