LTC1647-1/
LTC1647-2/LTC1647-3
6
1647fa
TYPICAL PERFORMANCE CHARACTERISTICS
Undervoltage Lockout Threshold
vs Temperature
ON Threshold Voltage vs V
CC
ON Threshold Voltage
vs Temperature
TEMPERATURE (°C)
UNDERVOLTAGE LOCKOUT THRESHOLD (V)
1647-1/2/3 G19
2.6
2.5
2.4
2.3
2.2
2.1
–75 –50 –25 0 25 50 75 100 125 150
RISING EDGE
FALLING EDGE
V
CC
(V)
0 2 4 6 8 10 12 14 16 18 20
ON THRESHOLD VOLTAGE (V)
1647-1/2/3 G20
1.35
1.30
1.25
1.20
1.15
T
A
= 25°C
HIGH
LOW
TEMPERATURE (°C)
ON THRESHOLD VOLTAGE (V)
1647-1/2/3 G21
1.35
1.30
1.25
1.20
1.15
–75 –50 –25 0 25 50 75 100 125 150
V
CC
= 5V
HIGH
LOW
GATE Output Sink Current vs V
CC
GATE Output Sink Current
vs Temperature
GATE Fast Pull-Down Current
vs V
CC
GATE Fast Pull-Down Current
vs Temperature
Circuit Breaker Trip Voltage
vs V
CC
Circuit Breaker Trip Voltage
vs Temperature
V
CC
(V)
0 2 4 6 8 10 12 14 16 18 20
GATE OUTPUT SINK CURRENT (μA)
1647-1/2/3 G13
100
90
80
70
60
50
40
30
20
10
0
T
A
= 25°C
TEMPERATURE (°C)
GATE OUTPUT SINK CURRENT (μA)
1647-1/2/3 G14
55
54
53
52
51
50
49
48
47
46
45
V
CC
= 5V
–75 –50 –25 0 25 50 75 100 125 150
V
CC
(V)
0 2 4 6 8 10 12 14 16 18 20
GATE FAST PULL-DOWN CURRENT (mA)
1647-1/2/3 G15
60
55
50
45
40
35
30
T
A
= 25°C
TEMPERATURE (°C)
GATE FAST PULL-DOWN CURRENT (mA)
1647-1/2/3 G16
80
70
60
50
40
30
20
10
0
–75 –50 –25 0 25 50 75 100 125 150
V
CC
= V
CC1
= V
CC2
= 5V
V
CC
(V)
0 2 4 6 8 10 12 14 16 18 20
CIRCUIT BREAKER TRIP VOLTAGE (mV)
1647-1/2/3 G17
60
58
56
54
52
50
48
46
44
42
40
T
A
= 25°C
TEMPERATURE (°C)
CIRCUIT BREAKER TRIP VOLTAGE (mV)
1647-1/2/3 G18
60
58
56
54
52
50
48
46
44
42
40
–75 –50 –25 0 25 50 75 100 125 150
V
CC
= 15V
V
CC
= 12V
V
CC
= 5V
V
CC
= 3V
