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LTC4357

Features: ` Reduces Power Dissipation by Replacing a Power Schottky Diode with an N-Channel MOSFET` 0.5s Turn-Off Time Limits Peak Fault Current` Wide Operating Voltage Range: 9V to 80V` Smooth Switchover without Oscillation` No Reverse DC Current` Available in 6-Lead (2mm * 3mm) DFN and 8-Lead MS...

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SeekIC No. : 004402573 Detail

LTC4357: Features: ` Reduces Power Dissipation by Replacing a Power Schottky Diode with an N-Channel MOSFET` 0.5s Turn-Off Time Limits Peak Fault Current` Wide Operating Voltage Range: 9V to 80V` Smooth Swit...

LTC4357 Data Sheet

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Part Number:
LTC4357
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Reduces Power Dissipation by Replacing a Power Schottky Diode with an N-Channel MOSFET
` 0.5s Turn-Off Time Limits Peak Fault Current
` Wide Operating Voltage Range: 9V to 80V
` Smooth Switchover without Oscillation
` No Reverse DC Current
` Available in 6-Lead (2mm * 3mm) DFN and 8-Lead MSOP Packages


Application

· N + 1 Redundant Power Supplies
· High Availability Systems
· AdvancedTCA Systems
· Telecom Infrastructure
· Automotive Systems


Pinout

Connection Diagram


Specifications

Supply Voltages
IN, OUT, VDD ..................................... 0.3V to 100V
Output Voltage
GATE (Note 3) ...................... VIN 0.2V to VIN + 10V
Operating Ambient Temperature Range
LTC4357C ................................................ 0 to 70
LTC4357I.............................................. 40 to 85
Storage Temperature Range
DCB Package ..................................... 65 to 150
MS Package ....................................... 65 to 150
Lead Temperature (Soldering, 10 sec)
MS Package ..................................................... 300


Description

The LTC®4357 is a positive high voltage ideal diode controller that drives an external N-channel MOSFET to replace a Schottky diode. When used in diode-OR and high current diode applications, the LTC4357 reduces power consumption, heat dissipation, voltage loss and PC board area.

The LTC4357 easily ORs power sources to increase total system reliability. In diode-OR applications, the LTC4357 controls the forward voltage drop across the MOSFET to ensure smooth current transfer from one path to the other without oscillation. If the power source fails or is shorted, a fast turn-off minimizes reverse current transients.




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