Datasheet

LT4356-1/LT4356-2
5
4356fb
For more information www.linear.com/LT4356-1
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 12V unless otherwise noted.
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 currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to GND unless otherwise
specified.
Note 3: An internal clamp limits the GATE pin to a minimum of 10V above
the OUT pin. Driving this pin to voltages beyond the clamp may damage
the device.
electricAl chArActeristics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
SHDN(FLT)
SHDN Pin Float Voltage V
CC
= 12V to 48V
l
0.6 1.2 2.1 V
I
SHDN
SHDN Pin Current V
SHDN
= 0V
l
–1 –4 –8 µA
t
OFF(OC
) Overcurrent Turn Off Delay Time
GATE From High to Low, ΔV
SNS
= 0 → 120mV
l
2 4 µs
t
OFF(OV)
Overvoltage Turn Off Delay Time
GATE From High to Low, V
FB
= 0 → 1.5V
l
0.25 1 µs
typicAl perForMAnce chArActeristics
I
CC
(Shutdown) vs V
CC
I
CC
vs V
CC
V
CC
(V)
0
0
I
CC
(µA)
10
20
30
40
20 40 60 80
4356 G01
50
60
10 30 50 70
LT4356-1
V
CC
(V)
0
0
I
CC
(µA)
200
400
600
20 40 60 80
4356 G02
800
1000
10 30 50 70
Specifications are at V
CC
= 12V, T
A
= 25°C unless otherwise noted.
I
CC
(Shutdown) vs V
CC
V
CC
(V)
0
0
I
CC
(µA)
20
40
20 40 60
80
4356 G20
120
LT4356-2
IN
+
= 1.3V
60
80
100
10 30 50 70
TEMPERATURE (°C)
–50
0
I
CC
(µA)
50
100
150
200
0 50 100
125
4356 G21
250
300
–25 25 75
LT4356-2
I
CC
(Shutdown) vs Temperature
I
CC
(Shutdown) vs Temperature
TEMPERATURE (°C)
–50
0
I
CC
(µA)
5
10
15
20
0 50 100 125
4356 G03
25
35
30
–25 25 75
LT4356-1
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