Datasheet

LTC1646
5
1646fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Gate I
SINK
vs Temperature Gate Voltage vs Temperature
Power Good Threshold Voltage vs
Temperature (3V
OUT
)
Power Good Threshold Voltage vs
Temperature (5V
OUT
)
Timer Threshold Voltage vs
Temperature
5V
SENSE
Input Current vs
Temperature
3V
SENSE
Input Current vs
Temperature 3V
IN
Input Current vs Temperature Timer Current vs Temperature
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
GATE I
SINK
(mA)
1646 G13
10
9
8
7
6
5
FAULT = 0V
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
GATE VOLTAGE (V)
1646 G14
15.5
15.0
14.5
14.0
13.5
13.0
12.5
5V
IN
= 5V
I = –1µA
5V
IN
= 3.3V
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
POWER GOOD THRESHOLD VOLTAGE (V)
1646 G15
3.00
2.95
2.90
2.85
2.80
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
POWER GOOD THRESHOLD VOLTAGE (V)
1646 G16
4.75
4.70
4.65
4.60
4.55
4.50
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
TIMER THRESHOLD VOLTAGE (V)
1646 G17
1.30
1.28
1.26
1.24
1.22
1.20
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
5V
SENSE
INPUT CURRENT (µA)
1646 G18
70
69
68
67
66
65
64
63
62
61
60
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
3V
SENSE
INPUT CURRENT (µA)
1646 G19
70
69
68
67
66
65
64
63
62
61
60
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
3V
IN
INPUT CURRENT (µA)
1646 G20
480
475
470
465
460
455
450
445
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
TIMER CURRENT (µA)
1646 G21
–4.00
–4.25
–4.50
–4.75
–5.00
–5.25
–5.50
–5.75
–6.00