LTC1647 LINER [Linear Technology], LTC1647 Datasheet - Page 4

• Manufacturer Part Number: LTC1647
• Description: Hot Swap Controller
• Manufacturer: LINER [Linear Technology]

LTC4211
SYMBOL
t
t
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All current into device pins are positive; all current out of device
pins are negative; all voltages are referenced to ground unless otherwise
specified.
TYPICAL PERFORMANCE CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
4
RESET
OFF
1.40
1.35
1.30
1.25
1.20
1.15
1.10
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
0
Supply Current vs Supply Voltage
ON Pin Threshold
vs Supply Voltage
T
T
A
A
= 25°C
2
2
= 25°C
PARAMETER
Circuit Breaker Reset Delay Time
Turn-Off Time
4
4
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
6
6
HIGH THRESHOLD
LOW THRESHOLD
8
8
10
10
12
12
14
14
16
16
18
18
4211 G01
4211 G04
20
20
1.30
1.20
1.10
1.40
1.35
1.25
1.15
2.5
3.5
3.0
2.0
1.5
1.0
0.5
CONDITIONS
ON Low to FAULT High
ON Low to GATE Off
4.0
0
–75
–75
A
Supply Current vs Temperature
ON Pin Threshold
vs Temperature
V
= 25°C. V
–50
CC
–50
= 5V
The
–25
HIGH THRESHOLD
–25
TEMPERATURE (°C)
TEMPERATURE (°C)
l
LOW THRESHOLD
CC
0
0
denotes the specifications which apply over the full operating
V
V
= 5V, unless otherwise noted. (Note 2)
V
V
25
CC
CC
25
CC
CC
Note 3: An internal Zener at the GATE pin clamps the charge pump voltage
to a typical maximum operating voltage of 26V. External voltage applied to
the GATE pin beyond the internal Zener voltage may damage the part. If a
lower GATE pin voltage is desired, use an external Zener diode. The GATE
capacitance must be < 0.15μF at maximum V
= 15V
= 12V
= 5V
= 3V
50
50
75
75 100 125
100
125
4211 G02
4211 G05
150
150
l
2.4
2.2
2.0
2.5
2.3
2.1
30
25
20
15
10
5
0
–75
Undervoltage Lockout Threshold
vs Temperature
0
GATE Voltage vs Supply Voltage
T
A
–50
MIN
2
= 25°C
–25
4
SUPPLY VOLTAGE (V)
CC
TEMPERATURE (°C)
6
0
.
FALLING EDGE
TYP
150
RISING EDGE
8
8
25
10
50
12
MAX
250
75 100 125
14
16
4211 G03
18
UNITS
4211 G06
4211fb
150
20
μs
μs