ltc1326cms8-trpbf Linear Technology Corporation, ltc1326cms8-trpbf Datasheet - Page 13

• Manufacturer Part Number: ltc1326cms8-trpbf
• Description: Micropower Precision Triple Supply Monitor
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
ADJUSTABLE
SUPPLY
R1
3.3V
2.5V
R2
1
2
3
4
V
V
V
GND
LTC1326-2.5
CC3
CC25
CCA
3.3V
–5V
5V
2N3906
2N3904
SRST
PBR
U
RST
RST
Q1
Q3
8
7
6
5
R2
150k
1%
R4
392k
1%
N
100k
Reset Valid for V
SYSTEM RESET
Monitoring a Negative Supply
Q2
2N3906
R1
150k
1%
R3
100k
1%
V
CCA
1326/2.5 TA13
R4 ≈ (100k)(0.98)(V
SUPPLY
C1
0.1µF
C2
0.1µF
– 3.3V
– 12V
– 5V
CC3
Down to 0V
1
2
3
4
V
V
V
GND
– 10.8V
– 4.6V
V
CC3
CC5
CCA
– 3V
TRIP
TRIP
LTC1326
+ 0.55)(–1)
SRST
PBR
RST
RST
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
LTC1326/LTC1326-2.5
8
7
6
5
392k
237k
1M
R4
0
V
T
RST OUTPUT WITH
100k PULL-UP TO V
A
CC3
0.5
SYSTEM RESET
= 25°C
= V
CC25
1326/2.5 TA12
1.0
= V
RST OUTPUT
WITHOUT
100k PULL-UP.
10M LOAD TO GND
1.5
V
CCA
CC3
CC3
(V)
2.0
2.5
1326/2.5 TA13a
3.0
3.5
13
132625fc