LTC1998 LINER [Linear Technology], LTC1998 Datasheet - Page 4

• Manufacturer Part Number: LTC1998
• Description: 2.5uA, 1% Accurate SOT-23 Comparator and Voltage Reference for Battery Monitoring
• Manufacturer: LINER [Linear Technology]

LTC1998
TYPICAL PERFORMANCE CHARACTERISTICS
4
750
500
250
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2.5
Quiescent Supply Current vs
Supply Voltage
Available Hysteresis vs
Threshold Voltage
T
V
A
LOGIC
LOW BATTERY THRESHOLD VOLTAGE (V)
= 25°C
= V
BATT
SUPPLY VOLTAGE (V)
2.75
V
TH.A
V
= 1.5V
TH.A
= 0V
3.0
1998 G01
1998 G04
3.25
3.5
3.0
2.5
2.0
1.5
1.0
0.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
–50
–45
Quiescent Supply Current vs
Temperature
Threshold Voltage Error vs
Temperature
V
BATT
V
THRESHOLD = 3V
TH.A
–25
–30
= V
= 1V
LOGIC
–10
–5
TEMPERATURE (°C)
TEMPERATURE (°C)
= 3V
10
15
V
TO GROUND,
THRESHOLD = 2.5V
TH.A
V
TH.A
35
SHORTED
30
V
EXTERNAL R,
THRESHOLD = 3V
TH.A
= 1.5V
55
50
SET BY 1%
70
75
1998 G02
1998 G05
90
95
10000
1000
100
0.1
3.5
3.0
2.5
10
1
35
0
Threshold Voltage vs T hreshold
Adjust Voltage
Input Current vs Temperature
45
THRESHOLD ADJUST VOLTAGE (V)
55
TEMPERATURE (°C)
0.5
65
75
85
1.0
95 105 115
V
IN
V
= 0.5V
IN
V
= 1.5V
IN
= 1V
1998 G03
1998 G06
1998fa
125
1.5