LT3752IFE-1#PBF

Product Overview

Category

The LT3752IFE-1#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used for controlling and regulating power in various electronic systems, such as industrial equipment, automotive applications, and telecommunications devices.

Characteristics

• The LT3752IFE-1#PBF is a high voltage, current mode DC/DC controller.
• It operates over a wide input voltage range, making it suitable for diverse power supply designs.
• This IC offers excellent line and load regulation, ensuring stable and reliable power delivery.
• It features a programmable switching frequency, allowing flexibility in system design.
• The LT3752IFE-1#PBF incorporates comprehensive protection features, including overvoltage and overcurrent protection.

Package

The LT3752IFE-1#PBF comes in a small form factor 28-lead TSSOP package. This package provides efficient heat dissipation and ease of integration into various circuit board layouts.

Essence

The essence of the LT3752IFE-1#PBF lies in its ability to efficiently control and regulate power in a wide range of applications, ensuring stable and reliable operation.

Packaging/Quantity

The LT3752IFE-1#PBF is typically available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4V to 100V
• Output Voltage Range: 0.8V to 60V
• Switching Frequency Range: 100kHz to 500kHz
• Maximum Duty Cycle: 90%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3752IFE-1#PBF has a total of 28 pins. The pin configuration is as follows:

1. VIN: Input voltage pin
2. VCC: Supply voltage pin
3. GND: Ground pin
4. SYNC/SS: Synchronization or soft-start pin
5. FB: Feedback pin
6. COMP: Compensation pin
7. RT/CLKOUT: Resistor timing or clock output pin
8. SS/TRK: Soft-start or tracking pin
9. ITH: Current sense threshold pin
10. VSENSE: Voltage sense pin
11. VREF: Reference voltage pin
12. AGND: Analog ground pin
13. PGND: Power ground pin 14-28. NC: No connection pins

Functional Features

The LT3752IFE-1#PBF offers the following functional features:

1. High voltage operation: It can handle input voltages up to 100V, making it suitable for a wide range of applications.
2. Current mode control: The IC utilizes current mode control for improved stability and transient response.
3. Programmable switching frequency: The switching frequency can be adjusted within a wide range to optimize efficiency and minimize component size.
4. Comprehensive protection features: The IC incorporates various protection mechanisms, including overvoltage, overcurrent, and thermal shutdown protection.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile application scenarios.
• Excellent line and load regulation ensure stable power delivery.
• Programmable switching frequency provides flexibility in system design.
• Comprehensive protection features enhance system reliability.

Disadvantages

• Limited maximum duty cycle may restrict certain applications requiring higher duty cycles.
• The small form factor package may pose challenges for manual soldering or rework.

Working Principles

The LT3752IFE-1#PBF operates based on a current mode control architecture. It regulates the output voltage by adjusting the duty cycle of the internal power switch. The feedback loop compares the output voltage with a reference voltage and adjusts the duty cycle accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The LT3752IFE-1#PBF can be applied in various fields, including but not limited to:

1. Industrial equipment: Power supply control for motor drives, robotics, and automation systems.
2. Automotive applications: DC/DC converter control for electric vehicles, hybrid vehicles, and automotive lighting systems.
3. Telecommunications devices: Power management for base stations, routers, and network switches.
4. Renewable energy systems: Control and regulation of solar inverters and wind turbine power converters.

Detailed and Complete Alternative Models

1. LT3752AIFE-1#PBF: Similar to LT3752IFE-1#PBF, but with additional features for enhanced protection and fault detection.
2. LT3752HFE-1#PBF: High temperature variant suitable for harsh operating environments.
3. LT3752IFE-2#PBF: Lower voltage range version for applications with lower input voltage requirements.

These alternative models provide similar functionality to