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LTC4352 Datasheet

LTC4352 Datasheet

Low Voltage Ideal Diode Controller with Monitoring
Part No.: LTC4352
Page: 16 Pages
Size: 221 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-10-23 10:21:22
DataSheet: Download

LTC4352 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC4352CDD#PBF Tube 121 LDPJ 1 12 0°C ~ 70°C 12-Pin (3mm × 3mm) Plastic DFN  
LTC4352CDD#TRPBF Reel 2500 LDPJ 1 12 0°C ~ 70°C 12-Pin (3mm × 3mm) Plastic DFN  
LTC4352CDD#TRMPBF Reel 500 LDPJ 1 12 0°C ~ 70°C 12-Pin (3mm × 3mm) Plastic DFN  
LTC4352IDD#PBF Tube 121 LDPJ 1 12 -40°C ~ 85°C 12-Pin (3mm × 3mm) Plastic DFN  
LTC4352IDD#TRPBF Reel 2500 LDPJ 1 12 -40°C ~ 85°C 12-Pin (3mm × 3mm) Plastic DFN  
LTC4352IDD#TRMPBF Reel 500 LDPJ 1 12 -40°C ~ 85°C 12-Pin (3mm × 3mm) Plastic DFN  
LTC4352HDD#PBF Tube 121 LDPJ 1 12 -40°C ~ 150°C 12-Pin (3mm × 3mm) Plastic DFN  
LTC4352HDD#TRPBF Reel 2500 LDPJ 1 12 -40°C ~ 150°C 12-Pin (3mm × 3mm) Plastic DFN  
LTC4352HDD#TRMPBF Reel 500 LDPJ 1 12 -40°C ~ 150°C 12-Pin (3mm × 3mm) Plastic DFN  
LTC4352CMS#PBF Tube 37 4352 1 12 0°C ~ 70°C 12-Lead Plastic MSOP  
LTC4352CMS#TRPBF Reel 2500 4352 1 12 0°C ~ 70°C 12-Lead Plastic MSOP  
LTC4352CMS#TRMPBF Reel 500 4352 1 12 0°C ~ 70°C 12-Lead Plastic MSOP  
LTC4352IMS#PBF Tube 37 4352 1 12 -40°C ~ 85°C 12-Lead Plastic MSOP  
LTC4352IMS#TRPBF Reel 2500 4352 1 12 -40°C ~ 85°C 12-Lead Plastic MSOP  
LTC4352IMS#TRMPBF Reel 500 4352 1 12 -40°C ~ 85°C 12-Lead Plastic MSOP  
LTC4352HMS#PBF Tube 37 4352 1 12 -40°C ~ 150°C 12-Lead Plastic MSOP  
LTC4352HMS#TRPBF Reel 2500 4352 1 12 -40°C ~ 150°C 12-Lead Plastic MSOP  
LTC4352HMS#TRMPBF Reel 500 4352 1 12 -40°C ~ 150°C 12-Lead Plastic MSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC4352 Datasheet(PDF)

LTC4352 Datasheet(Picture)

LTC4352 Features

  • Low Loss Replacement for Power Diode
  • Controls N-Channel MOSFET
  • 0V to 18V Supply ORing or Holdup
  • 0.5μs Turn-On and Turn-Off Time
  • Undervoltage and Overvoltage Protection
  • Open MOSFET Detect
  • Status and Fault Outputs
  • Hot Swappable
  • Reverse Current Enable Input
  • 12-Pin MSOP and DFN (3mm × 3mm) Packages

LTC4352 Applications

  • Redundant Power Supplies
  • Supply Holdup
  • Telecom Infrastructure
  • Computer Systems and Servers

LTC4352 Description

The LTC4352 creates a near-ideal diode using an external N-channel MOSFET. It replaces a high power Schottky diode and the associated heat sink, saving power and board area. The ideal diode function permits low loss power ORing and supply holdup applications.

The LTC4352 regulates the forward voltage drop across the MOSFET to ensure smooth current transfer in diode-OR applications. A fast turn-on reduces the load voltage droop during supply switch-over. If the input supply fails or is shorted, a fast turn-off minimizes reverse currents.

The controller operates with supplies from 2.9V to 18V. For lower voltages, an external supply is needed at the VCC pin. Power passage is disabled during undervoltage or overvoltage conditions. The controller also features an open MOSFET detect circuit that flags excessive voltage drop across the pass transistor in the on state. A REV pin enables reverse current, overriding the diode behavior when desired.

LTC4352 Datasheet Related Parts

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