ltc1642a Linear Technology Corporation, ltc1642a Datasheet - Page 5

• Manufacturer Part Number: ltc1642a
• Description: Hot Swap Controller
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
160
140
120
100
1.232
1.228
1.224
1.220
1.216
1.212
1.208
80
60
40
20
27.5
27.0
26.5
26.0
25.5
25.0
24.5
0
FAULT and RESET Pull-Up Current
(I
3
–50
3
OH
V
Current Limit Threshold Voltage
(Full Foldback) vs Temperature
REF
) vs V
FB = 0V
T
A
–25
= 25°C
vs V
6
6
CC
CC
0
TEMPERATURE (°C)
T
V
A
9
V
25
CC
V
CC
= 25°C
9
CC
(V)
= 5V
T
(V)
V
A
50
CC
= –55°C
12
= 12V
12
T
75
A
W
V
CC
= 125°C
V
CC
= 15V
100
15
1642a G14
= 3V
1642a G20
15
1642a G24
U
125
57.0
56.5
56.0
55.5
55.0
54.5
54.0
53.5
600
500
400
300
200
100
20
10
0
0
–50
–50
FAULT and RESET V
Temperature
Current Limit Threshold Voltage
(Nominal) vs Temperature
0
I
CC
I
FB = 1V
OL
T
–25
A
–25
vs V
= 1.54mA
= 25°C
V
CC
CC
= 5V
V
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
CC
= 15V
V
V
CC
V
25
25
ON
ON
V
= 3V
CC
= 5V
25
= 0V
(V)
50
50
OL
V
CC
vs
75
75
V
V
V
= 12V
V
CC
CC
CC
CC
= 5V
= 12V
= 15V
100
= 3V
100
1642a G16
1642a G21
1642a G25
125
125
50
1.40
1.36
1.32
1.28
1.24
1.20
3.5
3.0
2.5
2.0
1.5
1.0
0.5
–10
–12
–14
–16
–18
–20
–22
– 42
–2
–4
–6
–8
0
–50
0
–50
FAULT and RESET V
Temperature
0
ON Pin Threshold Voltage vs
Temperature
Reference O/P Impedance
I
OL
V
–25
CC
–25
2.5
= 5mA
= 12V
5
0
TEMPERATURE (°C)
0
TEMPERATURE (°C)
V
V
CC
CC
7.5
LTC1642A
V
CC
25
ON RISING
ON FALLING
= 5V
= 3.3V
25
I
REF
= 3V
10 12.5 15 17.5 20
(mA)
50
50
OL
vs
75
75
V
V
V
CC
CC
CC
T
V
A
CC
= 5V
= 12V
= 15V
100
100
= 25°C
= 12V,
1642a G17
1642a G22
1642a G37
15V
1642af
5
125
125