LTC4261IGN-2#TRPBF

Product Overview

Category

The LTC4261IGN-2#TRPBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is commonly used in various power management systems, including but not limited to power over Ethernet (PoE) applications.

Characteristics

• The LTC4261IGN-2#TRPBF is a highly efficient and versatile IC that enables power sourcing equipment (PSE) to provide power to connected devices.
• It supports IEEE 802.3af/at compliant PoE applications, making it suitable for a wide range of devices such as IP phones, wireless access points, and security cameras.
• This IC offers advanced features like programmable current limit, thermal shutdown protection, and fault detection capabilities.
• It operates with high efficiency, minimizing power losses and maximizing power delivery to connected devices.

Package and Quantity

The LTC4261IGN-2#TRPBF is available in an industry-standard 16-pin SSOP (Shrink Small Outline Package) package. It is typically sold in reels or tubes, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 2.7V to 14V
• Maximum Current Limit: 400mA
• Operating Temperature Range: -40°C to 85°C
• Package Type: 16-pin SSOP

Pin Configuration

The LTC4261IGN-2#TRPBF has the following pin configuration:

1. VOUT
2. GND
3. NC
4. NC
5. NC
6. NC
7. NC
8. NC
9. NC
10. NC
11. NC
12. NC
13. NC
14. NC
15. VIN
16. NC

Functional Features

• Programmable current limit allows customization based on specific application requirements.
• Thermal shutdown protection prevents damage due to excessive heat.
• Fault detection features enable the identification and handling of abnormal conditions, ensuring system reliability.
• Integrated power MOSFETs simplify the design and reduce external component count.
• Low power consumption in standby mode enhances energy efficiency.

Advantages and Disadvantages

Advantages

• High efficiency power delivery for PoE applications.
• Advanced features for enhanced system protection and fault detection.
• Compact package size for space-constrained designs.
• Wide input voltage range enables compatibility with various power sources.

Disadvantages

• Limited maximum current limit may not be suitable for high-power devices.
• Requires careful thermal management to prevent overheating in demanding applications.

Working Principles

The LTC4261IGN-2#TRPBF operates as a PSE controller in a PoE system. It utilizes advanced power management techniques to efficiently deliver power to connected devices. The IC incorporates power MOSFETs, which act as switches to control the power flow. It also includes circuitry for current sensing, fault detection, and thermal protection. By intelligently managing the power delivery process, the LTC4261IGN-2#TRPBF ensures safe and reliable operation of PoE-enabled devices.

Application Field Plans

The LTC4261IGN-2#TRPBF finds extensive use in various power management applications, including:

1. Power over Ethernet (PoE) systems: This IC is widely employed in PoE systems to provide power to network devices such as IP phones, wireless access points, and security cameras. Its programmable current limit and fault detection capabilities make it suitable for different PoE device classes.

2. Industrial automation: The LTC4261IGN-2#TRPBF can be utilized in industrial automation systems to power and control various sensors, actuators, and communication modules. Its compact package size and wide input voltage range make it suitable for diverse industrial environments.

3. Internet of Things (IoT) devices: With the increasing proliferation of IoT devices, the LTC4261IGN-2#TRPBF can be employed in powering and managing a wide range of connected devices, including smart home appliances, environmental sensors, and wearable devices.

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the LTC4261IGN-2#TRPBF include:

1. LT4275A: This IC offers higher current limit and additional features like power good indication and programmable undervoltage lockout.
2. TPS23861: A PoE PSE controller with advanced diagnostics and monitoring capabilities.
3. MAX5941: An integrated PoE PSE controller with built-in power MOSFETs and comprehensive protection features.

These alternative models provide designers with options based on specific application requirements and desired feature sets.

In conclusion, the LTC4261IGN-2#TRPBF is a highly efficient