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LM5070SD-50/NOPB
Product Overview
Category: Integrated Circuit (IC)
Use: Power over Ethernet (PoE) Controller
Characteristics: - High efficiency - Low power consumption - Small form factor - Robust protection features
Package: SD package (8-pin)
Essence: The LM5070SD-50/NOPB is a PoE controller IC designed for use in Power Sourcing Equipment (PSE) applications. It provides the necessary control and power management functions to enable power delivery over Ethernet cables.
Packaging/Quantity: The LM5070SD-50/NOPB is available in an 8-pin SD package. It is typically sold in reels containing multiple units.
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage Range: 2.7V to 57V
- Maximum Output Current: 600mA
- Operating Temperature Range: -40°C to +85°C
- Control Interface: I2C
Detailed Pin Configuration
The LM5070SD-50/NOPB has the following pin configuration:
- VDD: Power supply input
- GND: Ground reference
- EN: Enable pin for device operation
- I2C_SCL: Serial clock input for I2C communication
- I2C_SDA: Serial data input/output for I2C communication
- VOUT: Output voltage pin
- FB: Feedback pin for output voltage regulation
- NC: No connection
Functional Features
- Integrated DC-DC converter for efficient power conversion
- Programmable output voltage and current limits
- Overvoltage and overcurrent protection
- Thermal shutdown protection
- I2C interface for control and monitoring
Advantages and Disadvantages
Advantages: - High efficiency power conversion - Flexible output voltage and current settings - Robust protection features ensure safe operation - Compact package size for space-constrained applications
Disadvantages: - Requires external components for complete PoE implementation - Limited maximum output current compared to some other PoE controllers
Working Principles
The LM5070SD-50/NOPB operates by converting the high voltage input from the Ethernet cable into a regulated output voltage suitable for powering connected devices. It uses an integrated DC-DC converter to achieve high efficiency power conversion. The device can be controlled and monitored through the I2C interface, allowing for customization of output voltage and current limits.
Detailed Application Field Plans
The LM5070SD-50/NOPB is commonly used in various Power over Ethernet applications, including: - IP cameras - Wireless access points - VoIP phones - Network switches - Industrial automation equipment
Detailed and Complete Alternative Models
Some alternative models to the LM5070SD-50/NOPB that offer similar functionality include: - LM5070SD-80/NOPB: Higher maximum output current (800mA) - LM5070SD-33/NOPB: Lower input voltage range (18V to 36V) - LM5070SD-ADJ/NOPB: Adjustable output voltage range
These alternative models provide options for different power requirements and design constraints.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de LM5070SD-50/NOPB em soluções técnicas
What is the input voltage range of LM5070SD-50/NOPB?
- The input voltage range of LM5070SD-50/NOPB is 4.5V to 75V.
What is the output current capability of LM5070SD-50/NOPB?
- The output current capability of LM5070SD-50/NOPB is up to 500mA.
Can LM5070SD-50/NOPB be used in automotive applications?
- Yes, LM5070SD-50/NOPB is suitable for automotive applications.
What is the operating temperature range of LM5070SD-50/NOPB?
- The operating temperature range of LM5070SD-50/NOPB is -40°C to 125°C.
Is LM5070SD-50/NOPB suitable for use in industrial control systems?
- Yes, LM5070SD-50/NOPB is suitable for use in industrial control systems.
Does LM5070SD-50/NOPB have built-in protection features?
- Yes, LM5070SD-50/NOPB includes overcurrent and thermal shutdown protection.
What type of package does LM5070SD-50/NOPB come in?
- LM5070SD-50/NOPB is available in a 10-pin WSON package.
Can LM5070SD-50/NOPB be used in battery charging applications?
- Yes, LM5070SD-50/NOPB can be used in battery charging applications.
What is the typical efficiency of LM5070SD-50/NOPB?
- The typical efficiency of LM5070SD-50/NOPB is around 90%.
Is LM5070SD-50/NOPB suitable for power supply designs in telecommunications equipment?
- Yes, LM5070SD-50/NOPB is suitable for power supply designs in telecommunications equipment.