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LTC4358IDE#TRPBF

P1-P3P4-P6P7-P9P10-P12
LTC4358
1
4358fa
FEATURES
APPLICATIONS
DESCRIPTION
5A Ideal Diode
The LTC
®
4358 is a 5A ideal diode that uses an internal
20mΩ N-channel MOSFET to replace a Schottky diode
when used in diode-OR and high current diode applica-
tions. The LTC4358 reduces power consumption, heat
dissipation, and PC board area.
The LTC4358 easily ORs power supplies together to in-
crease total system reliability. In diode-OR applications,
the LTC4358 regulates the forward voltage drop across
the internal MOSFET to ensure smooth current transfer
from one path to the other without oscillation. If the power
source fails or is shorted, a fast turnoff minimizes reverse
current transients.
12V, 5A Diode-OR
n
Replaces a Power Schottky Diode
n
Internal 20mΩ N-Channel MOSFET
n
0.5μs Turn-Off Time Limits Peak Fault Current
n
Operating Voltage Range: 9V to 26.5V
n
Smooth Switchover without Oscillation
n
No Reverse DC Current
n
Available in 14-Pin (4mm × 3mm) DFN and
16-Lead TSSOP Packages
n
N+1 Redundant Power Supplies
n
High Availability Systems
n
Telecom Infrastructure
n
Automotive Systems
Power Dissipation vs Load Current
4358 TA01
LTC4358
GND
IN DRAIN
V
DD
OUT
V
INA
= 12V
V
OUT
TO
5A LOAD
LTC4358
GND
IN DRAIN
V
DD
OUT
V
INB
= 12V
CURRENT (A)
0
0
POWER DISSIPATION (W)
0.5
1.0
1.5
2.0
2.5
3.0
24 6 8
4358 TA01b
DIODE (B530C)
POWER SAVED
FET (LTC4358)
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
LTC4358
2
4358fa
ABSOLUTE MAXIMUM RATINGS
Supply Voltages
IN, OUT, V
DD
, DRAIN Voltage ................. –0.3V to 28V
Output Voltage
GATE (Note 3) .......................... V
IN
– 0.2V to V
IN
+ 6V
Operating Ambient Temperature Range
LTC4358C ................................................ 0°C to 70°C
LTC4358I.............................................. –40°C to 85°C
(Notes 1, 2)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
IN
IN
IN
IN
NC
OUT
V
DD
IN
IN
IN
IN
GATE
NC
GND
TOP VIEW
15
DRAIN
DE PACKAGE
14-LEAD (4mm s 3mm) PLASTIC DFN
T
JMAX
= 125°C, θ
JC
= 4°C/W, θ
JA
= 43°C/W
FE PACKAGE
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
IN
IN
IN
IN
NC
GATE
NC
GND
IN
IN
IN
IN
IN
NC
OUT
V
DD
17
DRAIN
T
JMAX
= 125°C, θ
JC
= 10°C/W, θ
JA
= 38°C/W
Storage Temperature Range ...................–65°C to 150°C
Lead Temperature (Soldering, 10 sec)
FE Package ....................................................... 300°C
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4358CDE#PBF LTC4358CDE#TRPBF 4358 14-Lead (4mm × 3mm) Plastic DFN 0°C to 70°C
LTC4358IDE#PBF LTC4358IDE#TRPBF 4358 14-Lead (4mm × 3mm) Plastic DFN –40°C to 85°C
LTC4358CFE#PBF LTC4358CFE#TRPBF 4358FE 16-Lead Plastic TSSOP 0°C to 70°C
LTC4358IFE#PBF LTC4358IFE#TRPBF 4358FE 16-Lead Plastic TSSOP –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *Temperature grades are identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
ORDER INFORMATION
PIN CONFIGURATION
LTC4358
3
4358fa
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 specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
OUT
= V
DD
, V
DD
= 9V to 26.5V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
DD
Operating Supply Range
l
926.5V
I
DD
Operating Supply Current
l
0.6 mA
I
IN
IN Pin Current V
IN
= V
OUT
± 1V, No Load
l
150 350 450 μA
I
OUT
OUT Pin Current V
IN
= V
OUT
± 1V, No Load
l
80 160 μA
I
DRAIN
DRAIN Pin Current V
IN
= 0V, V
OUT
= V
DD
= V
DRAIN
= 26.5V
l
5
150
μA
μA
ΔV
GATE
N-Channel Gate Drive (V
GATE
– V
IN
)V
DD,
V
OUT
= 9V to 26.5V
l
4.5 15 V
I
GATE(UP)
N-Channel Gate Pull Up Current V
GATE
= V
IN,
V
IN
– V
OUT
= 0.1V
l
–14 –20 –26 μA
I
GATE(DOWN)
N-Channel Gate Pull Down
Current in Fault Condition
V
GATE
= V
IN
+ 5V
l
12 A
t
ON
Turn-On Time V
IN
– V
OUT
= –1V
–
|
–
0.1V, V
DRAIN
= V
IN
,
V
OUT
= V
DD,
V
GATE
– V
IN
> 4.5V
l
200 500 μs
t
OFF
Turn-Off Time V
IN
– V
OUT
= 55mV
–
|
–
–1V, V
DRAIN
= V
IN
,
V
OUT
= V
DD,
V
GATE
– V
IN
< 1V
l
300 500 ns
ΔV
SD
Source-Drain Regulation Voltage
(V
IN
– V
OUT
)
1mA < I
IN
< 100mA
l
10 25 55 mV
ΔV
SD
Body Diode Forward Voltage Drop I
IN
= 5A, MOSFET Off
l
0.6 0.8 1 V
R
DS(ON)
Internal N-Channel MOSFET On
Resistance
I
IN
= 5A
l
20 40 mΩ
Note 2: All currents into pins are positive, all voltages are referenced to
GND unless otherwise specifi ed.
Note 3: An internal clamp limits the GATE pin to a minimum of 6V above
IN. Driving this pin to voltages beyond this clamp may damage the device.
P1-P3P4-P6P7-P9P10-P12

LTC4358IDE#TRPBF

Mfr. #:
Buy LTC4358IDE#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Power Management Specialized - PMIC 5A Ideal Diode, Integrated FET
Lifecycle:
New from this manufacturer.
Delivery:
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