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LTC4358 Datasheet(PDF) 3 Page - Analog Devices

Part # LTC4358
Description  18V, 12A Ideal Diode
PDF  14 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC4358 Datasheet(HTML) 3 Page - Analog Devices

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LTC4450
3
Rev. 0
For more information www.analog.com
ELECTRICAL CHARACTERISTICS
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.
The l denotes the specifications which apply over the full junction
temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VCC = 0V, SHDN# = 12V, IOUT = 50mA, unless
otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Operating Voltage Range
2.75V < VCC < 5.5V
l
l
0
2.75
18
18
V
V
IIN
VIN Net Current
VIN = 2.75V, VCC = 5.5V
SHDN# = 0V, IOUT = 10µA
l
l
l
20
0.5
0.8
40
5
5
µA
µA
µA
VCC
Operating Supply Range
l
2.75
5.5
V
ICC
VCC Current
VIN = 2.75V, VCC = 5.5V
VIN = 12V, VCC = 5.5V
SHDN# = 0V, IOUT = 10µA, VCC = 5.5V, VIN = 0V
l
l
l
20
0
0.8
45
1
2.5
µA
µA
µA
IREV
N-Channel Reverse Leakage Current
VIN = 0V, VOUT = 18V
10
µA
RDS(ON)
N-Channel MOSFET On-Resistance
IOUT = 12A
l
7
15
mΩ
∆VFWD
Forward Regulation Voltage (VIN − VOUT)
l
5
15
25
mV
∆VBODY
Body Diode Forward Voltage Drop
SHDN# = 0V
l
0.25
0.6
0.95
V
tON
Fast Turn-On Time
IOUT Step from 50mA to 6A, VIN – VOUT Settles
to within 25mV of IOUT • RDS(ON)
l
0.3
1
µs
tOFF
Fast Turn-Off Time
VFWD = 15mV Step to –500mV, Reverse Current
<40mA
l
0.45
2
µs
tSTART
Start-Up Time
SHDN# Rising Edge to (VIN – VOUT) < 200mV
l
250
550
µs
tSHDN#
SHDN# Turn-Off Delay
SHDN# Falling Edge to STATUS Falling Edge
l
10
20
µs
VSHDN#(TH) SHDN# Threshold
SHDN# Falling
l
0.4
0.85
1.3
V
VSHDN#(HYS) SHDN# Hysteresis
70
mV
VSTATUS(VOL) STATUS Output Voltage Low
ISTATUS = 1mA, SHDN# = 0V
ISTATUS = 3mA, SHDN# = 0V
l
l
0.25
0.7
0.5
1.4
V
V
ILEAK
SHDN#, STATUS Leakage Current
V = 18V
l
±1
µA
Note 2: All currents into pins are positive, all voltages are referenced to
GND unless otherwise specified.
Note 3: This voltage is set by the MOSFET’s body diode and will safely
exceed 0.3V during start-up for a limited time determined by the body
diode thermal dissipation.



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