Datasheet

LTC1644
7
1644f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
3V
SENSE
Input Current
vs Temperature 5V
IN
Input Current vs Temperature 3V
IN
Input Current vs Temperature
5V
OUT
Input Current
vs Temperature
3V
OUT
Input Current
vs Temperature
TIMER Pin Current
vs Temperature (ON = 0V)
TIMER Pin Current
vs Temperature (OFF/ON = 4V)
TIMER Threshold Voltage
vs Temperature
5V
OUT
Discharge Resistance
vs Temperature
TEMPERATURE (°C)
–50
60
50
40
30
20
10
0
25 75
1644 G28
–25 0
50 100
3V
SENSE
INPUT CURRENT (µA)
3V
OUT
= 0V
3V
OUT
= 2V
TEMPERATURE (°C)
–50
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
25 75
1644 G29
–25 0
50 100
5V
IN
INPUT CURRENT (mA)
TIMER = 0V
TEMPERATURE (°C)
–50
300
3V
IN
INPUT CURRENT (µA)
350
400
450
550
–25
02550
1644 G30
75 100
500
TIMER PIN FLOATING
TIMER = 0V
TEMPERATURE (°C)
–50
100
5V
OUT
INPUT CURRENT (µA)
101
–25
0
25 50
1644 G31
75
103
104
102
100
TEMPERATURE (°C)
–50
157
158
3V
OUT
INPUT CURRENT (µA)
–25
0
25 50
1644 G32
75
163
164
160
159
161
162
100
TEMPERATURE (°C)
–50
20.4
–25
0
25 50
1644 G33
75
21.4
20.6
20.8
21.0
21.2
21.6
100
TIMER PIN CURRENT (µA)
V
TIMER
= 0V
ON = 0V
TEMPERATURE (°C)
–50
0
TIMER PIN CURRENT (mA)
10
20
30
40
70
60
–25
02550
1644 G34
75 100
50
V
TIMER
= 5V
OFF/ON = 4V
TEMPERATURE (°C)
–50
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
25 75
1644 G35
–25 0
50 100
TIMER THRESHOLD VOLTAGE (V)
TEMPERATURE (°C)
–50
70
60
50
40
30
20
10
0
25 75
1644 G36
–25 0
50 100
5V
OUT
DISCHARGE RESISTANCE (Ω)