LTC1392I Ver la hoja de datos (PDF) - Linear Technology
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LTC1392I Datasheet PDF : 12 Pages
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LTC1392
TYPICAL APPLICATIONS
System Monitor for Two Supply Voltages and Ambient Temperature
+
10µF
16V
C1
220pF
1N4148
22Ω
0.1µF
VCC
PVCC
G1
0.1µF
+ VIN
M2
+ 220µF
10V
×4
VOUT
M1
2.5µH 3.3V
15A
FB
G2
LTC1430
COMP SHDN
RC
GND
7.5k
CC
4700pF
M3
SHDN
– VIN
100pF
10k
CO
330µF
+
100k
6.3V
×6
33k
M1, M2, M3:
MOTOROLA MTD20N03HL
10k
12k
TRIMMED TO
VOUT = 3.3V
+
10µF
0.1µF
0.1µF
5V
LTC1392
8
VCC
1
DIN
7
–VIN
2
DOUT
6
+VIN
3
CLK
5
GND
4
CS
P1.4
MPU
(e.g., 8051)
P1.3
P1.2
LTC1392 • TA03
System Monitor for Relative Humidity, Supply Voltage and Ambient Temperature
0.01µF
– 5V
470Ω
1k
1%
500Ω
90%
RH TRIM
LT1004-1.2
1/4 LTC1043
13
14
1µF
12
1µF
SENSOR
22M
1/4 LTC1043
8
7
16
5V
0.1µF
11
17
100pF
5V
2– 7
LT®1056
3+
4
– 5V
– 5V
0.1µF
5V
0.1µF
0.1µF
6
10k
0.1µF
5V
OUTPUT 0.1µF
3+
0V TO 1V =
0% TO 100%
6
LM301A
2–
8
100pF
1
LTC1392
8
VCC
1
DIN
7
–VIN
2
DOUT
6
+VIN
3
CLK
5
GND
4
CS
P1.4
MPU
(e.g., 8051)
P1.3
P1.2
10k
5%
RH TRIM
33k
0.1µF
9k*
– 5V
1k*
SENSOR: PANAMETRICS #RHS
500pF AT RH = 76%
1.7pF/ %RH
* 1% FILM RESISTOR
1392 TA04
10
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