LTC2901-1CGN#TR Linear Technology, LTC2901-1CGN#TR Datasheet - Page 15

• Manufacturer Part Number: LTC2901-1CGN#TR
• Description: IC MONITOR SUPPLY QUAD 16-SSOP
• Manufacturer: Linear Technology
• Type: Multi-Voltage Supervisorr

Specifications of LTC2901-1CGN#TR

• Number Of Voltages Monitored: 4
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 5 ms Minimum
• Voltage - Threshold: 16 Selectable Threshold Combinations
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL APPLICATIO S
WDI
RST
5V
SYSTEM
Quad Supply Monitor with Watchdog Timer Disabled
RESET
C
RT
1.8V
10k
5V
C
RT
1
2
3
4
5
6
7
8
ADJ
COMP3
COMP1
V3
V1
CRT
RST
WDO
WDI
5V, 3V, 1.8V, 12V (ADJ)
LTC2901
1
2
3
4
5
6
7
8
COMP2
COMP4
COMP3
COMP1
V3
V1
CRT
RST
WDO
WDI
V
CWT
GND
V
REF
Generate RESET Pulse Through Watchdog Timeout (LTC2901-1/LTC2901-2)
V2
V4
LTC2901
PG
16
15
14
13
12
11
10
9
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
COMP2
COMP4
V
CWT
GND
5V
V
REF
V2
V4
PG
WATCHDOG STATUS
U
C
3V
Quad Supply Monitor with LED Undervoltage Indicators
RT
16
15
14
13
12
11
10
9
SYSTEM RESET
2901 TA02
R4
100k
1%
2.15M
1%
R3
C
3.3V
WT
2.5V
R
1k
WDI
LED
L1
12V
V
TRIP
= 11.25V
5V, 3.3V, 2.5V, 1.5V
R
1k
1
2
3
4
5
6
7
8
WDO
WDI
LED
RST
L3
COMP3
COMP1
V3
V1
CRT
RST
WDO
WDI
LTC2901
COMP2
COMP4
V
GND
CWT
V
REF
SYSTEM
V2
V4
5V, –5V Monitor with Watchdog Timer Disabled and Unused
PG
C
RESET
C
WT
5V
RT
16
15
14
13
12
11
10
9
R
1k
V2, V3 Inputs Pulled Above Trip Thresholds
LED
L2
2901 TA04
1
2
3
4
5
6
7
8
COMP3
COMP1
V3
V1
CRT
RST
WDO
WDI
3.3V
1.5V
t
R
1k
R1
53.6k
1%
R2
47.5k
1%
WD
LTC2901
LED
L4
COMP2
COMP4
V
CWT
GND
V
REF
V2
V4
PG
~20μs
16
15
14
13
12
11
10
9
2901 TA03
R1
16.2k
1%
R2
86.6k
1%
t
RST
121k
1%
R4
LTC2901
464k
1%
R3
–5V
V
TRIP
15
2901 TA06
= –4.64V
2901fb