LTC1726 LINER [Linear Technology], LTC1726 Datasheet - Page 10

• Manufacturer Part Number: LTC1726
• Description: Triple Supply Monitor and uP Supervisor with Adjustable Reset and Watchdog Timer
• Manufacturer: LINER [Linear Technology]

LTC1726
TYPICAL APPLICATIO S
10
ADJUSTABLE
ADJUSTABLE
THRESHOLD 2.74V
ADJUSTABLE
SUPPLY
SUPPLY
RESET TRIP
U
LTC1435
V
OSENSE
Dual Supply Monitor (3.3V or 5V Plus Adjustable)
Using V
Dual Supply Monitor (3.3V Plus Adjustable)
R1*
R1*
3.3V OR
*TO PRESERVE THRESHOLD ACCURACY, SET PARALLEL
6
COMBINATION OF R1 AND R2
*TO PRESERVE THRESHOLD ACCURACY, SET PARALLEL
COMBINATION OF R1 AND R2 66.5k
3.3V
2.9V
5V
CCA
R2*
R2*
35.7k
1%
2.8k
1%
22.1k
1%
Tied to DC/DC Feedback Divider
3.3V
1
2
3
4
1
2
3
4
5V
V
V
V
GND
V
V
V
GND
LTC1726-2.5
CC3
CC5
CCA
CC3
CC25
CCA
LTC1726-5
1
2
3
4
V
V
V
GND
WDI
RST
WDI
RST
CC3
CC5
CCA
LTC1726-5
WT
WT
RT
RT
66.5k
8
7
6
5
8
7
6
5
1726 TA08
WDI
RST
WT
RT
4.7k
4.7k
8
7
6
5
SYSTEM RESET
WDI
SYSTEM RESET
WDI
C
C
RT
RT
C
SYSTEM RESET
WDI
RT
REFER TO LTC1726-X OVERRIDE FUNCTIONS IN
THE APPLICATIONS INFORMATION SECTION
C
C
WT
1726 TA07
WT
C
1726 TA06
WT