LTC4217HFE#TRPBF

Product Overview

Category: Integrated Circuit (IC)
Use: Power Management
Characteristics: High Efficiency, Overcurrent Protection, Hot Swap Controller
Package: 20-Lead TSSOP
Essence: Power management IC designed for hot swap applications
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

Input Voltage Range: -16V to +80V
Output Voltage Range: 0V to +80V
Maximum Continuous Current: 5A
Operating Temperature Range: -40°C to +85°C
Quiescent Current: 1.2mA

Pin Configuration

The LTC4217HFE#TRPBF package consists of 20 pins. The pin configuration is as follows:

VCC
GATE
FLT
SENSE
ILIM
REF
VIN
GND
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

Functional Features

Overcurrent Protection: Monitors the current flowing through the load and shuts down the power supply if it exceeds a set threshold.
Hot Swap Controller: Enables safe insertion and removal of circuit boards into live systems without causing voltage disturbances.
Adjustable Current Limit: Allows users to set the maximum current limit according to their specific requirements.
Fault Detection: Detects faults such as overvoltage, undervoltage, and overtemperature conditions.

Advantages and Disadvantages

Advantages: - Efficient power management solution for hot swap applications - Provides overcurrent protection, preventing damage to the load and power supply - Adjustable current limit allows customization based on specific needs

Disadvantages: - Limited to a maximum continuous current of 5A - Requires careful consideration of thermal management due to high power dissipation

Working Principles

The LTC4217HFE#TRPBF is a hot swap controller that enables safe insertion and removal of circuit boards into live systems. It utilizes an internal MOSFET to control the power supply to the load. The device continuously monitors the load current and compares it with the set current limit. If the load current exceeds the limit, the LTC4217HFE#TRPBF shuts down the power supply to protect the load and power source.

Application Field Plans

The LTC4217HFE#TRPBF finds applications in various fields where hot swap functionality and overcurrent protection are required. Some potential application areas include:

Server Systems: Facilitates the hot swapping of server blades without interrupting the operation of the entire system.
Telecom Equipment: Enables the safe insertion and removal of line cards in telecom switches and routers.
Industrial Automation: Protects sensitive equipment during maintenance or replacement operations.
Automotive Electronics: Ensures smooth integration of electronic modules in vehicles without causing voltage disturbances.

Alternative Models

LTC4210-1 - Hot Swap Controller with Adjustable Current Limit
LTC4215 - High Voltage Hot Swap Controller with I2C Interface
LTC4216 - Negative Voltage Hot Swap Controller with Overvoltage Protection

These alternative models offer similar functionalities to the LTC4217HFE#TRPBF and can be considered as alternatives depending on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC4217HFE#TRPBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LTC4217HFE#TRPBF in technical solutions:

Q: What is LTC4217HFE#TRPBF? A: LTC4217HFE#TRPBF is a power management IC (integrated circuit) designed for hot-swappable applications, providing protection and control features.
Q: What are the main features of LTC4217HFE#TRPBF? A: The main features include overcurrent protection, undervoltage lockout, thermal shutdown, adjustable current limit, and fault reporting.
Q: How does LTC4217HFE#TRPBF provide overcurrent protection? A: LTC4217HFE#TRPBF monitors the voltage drop across an external sense resistor to detect excessive current flow, triggering a fault condition when the threshold is exceeded.
Q: Can LTC4217HFE#TRPBF be used for hot-swapping batteries? A: Yes, LTC4217HFE#TRPBF can be used for hot-swapping batteries or any other power source that requires safe insertion and removal while the system is powered.
Q: Does LTC4217HFE#TRPBF support adjustable current limit? A: Yes, LTC4217HFE#TRPBF allows users to set the desired current limit by selecting an appropriate value for the external sense resistor.
Q: What is undervoltage lockout (UVLO) in LTC4217HFE#TRPBF? A: UVLO is a feature that ensures the input voltage is above a certain threshold before enabling the power path, preventing operation at insufficient voltages.
Q: How does LTC4217HFE#TRPBF handle thermal management? A: LTC4217HFE#TRPBF incorporates a thermal shutdown feature that protects the IC from excessive temperatures, preventing damage to the device.
Q: Can LTC4217HFE#TRPBF provide fault reporting? A: Yes, LTC4217HFE#TRPBF has a fault output pin that can be used to indicate various fault conditions, such as overcurrent or undervoltage.
Q: What is the typical application of LTC4217HFE#TRPBF? A: LTC4217HFE#TRPBF is commonly used in systems where hot-swapping of power sources is required, such as servers, telecom equipment, and industrial applications.
Q: Is LTC4217HFE#TRPBF available in other package options? A: Yes, LTC4217HFE#TRPBF is available in different package options, including the 20-lead TSSOP (Thin Shrink Small Outline Package) and the 4mm x 5mm QFN (Quad Flat No-Lead) package.

Please note that the answers provided here are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.