LTC4235CUFD-1#PBF

Programmable Features:	Current Limit
Base Part Number:	LTC4235
Feature Pins:	--
Supplier Device Package:	20-QFN (5x4)
Package / Case:	20-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Current - Supply:	2.7mA
Operating Temperature:	0°C ~ 70°C
Current - Output (Max):	--
Voltage - Supply:	9 V ~ 14 V
Series:	--
Features:	Latched Fault
Applications:	General Purpose
Internal Switch(s):	No
Number of Channels:	2
Type:	Hot Swap Controller, Monitor
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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Introduction

LTC4235CUFD-1#PBF is a hot swap controller from Linear Technology (LT). This device is designed for over current protection and inrush current limiting devices. It offers a current limit setpoint of up to 20A and an adjustable current limit foldback from 4 to 16A. It has an adjustable current limit that can be set precisely for safe and reliable operation in a wide range of applications. The LTC4235CUFD-1#PBF is an important member of the PMIC family of ICs and is a beneficial tool when it comes to the protection of high power applications.

Application Field

The LTC4235CUFD-1#PBF has various application fields. It is most notably suitable for high current switching applications such as servers, telecommunications, network and storage systems. This device can help protect these systems during extreme environments and conditions as it can provide both overcurrent protection and inrush current limiting. In addition, it can also be used in automotive and aerospace applications.

Working Principle

The LTC4235CUFD-1#PBF hot swap controller utilizes a linear current limit technique. This technique consists of two opposing currents and enables the device to sense the current limit of a system without the need for an external control loop. When the device detects that the system is under an overcurrent condition, it will turn off the power switch, protecting the system and preventing any further damage. The current limit can be easily adjusted using an adjustable resistor so that it is suitable for a wide range of applications.The LTC4235CUFD-1#PBF also features an inrush current limiter that prevents current spikes when the device is powered on. The inrush current limiter utilizes an adjustable current sense threshold to monitor the current flowing through the device. If a current spike is detected, the device will automatically limit the current flow. This helps to protect the system components and ensure that the power input is maintained at a safe level.

Conclusion

In conclusion, the LTC4235CUFD-1#PBF is a hot swap controller from Linear Technology (LT). It offers a current limit setpoint of up to 20A and an adjustable current limit foldback from 4 to 16A. The device utilizes a linear current limit technique to provide both overcurrent protection and inrush current limiting. Additionally, it also has an adjustable current sense threshold to monitor current spikes when the device is powered on. This device is suitable for a wide range of applications such as servers, telecommunications, network and storage systems, automotive and aerospace applications.

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