Texas Instruments
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LM2753SD
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LM2753SD

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC for LED Lighting Applications

Characteristics: - High efficiency - Low power consumption - Compact size - Wide input voltage range - Dimming control capability

Package: SD Package (Small Outline Package)

Essence: The LM2753SD is a power management IC specifically designed for LED lighting applications. It provides efficient power conversion and dimming control, making it suitable for various lighting systems.

Packaging/Quantity: The LM2753SD is available in a small outline package. The quantity per package may vary depending on the supplier.

Specifications

The LM2753SD has the following specifications:

  • Input Voltage Range: 4.5V to 40V
  • Output Voltage Range: 2.5V to 36V
  • Maximum Output Current: 1.5A
  • Dimming Control: Analog/PWM
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LM2753SD has the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. EN: Enable pin
  4. DIM: Dimming control pin
  5. FB: Feedback pin
  6. VOUT: Output voltage
  7. SW: Switching node
  8. PGND: Power ground

Functional Features

  • Wide input voltage range allows compatibility with various power sources.
  • Efficient power conversion ensures minimal energy loss.
  • Dimming control capability enables brightness adjustment.
  • Over-temperature protection ensures safe operation.
  • Short-circuit protection prevents damage to the IC and connected LEDs.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings. - Compact size allows for space-saving designs. - Wide input voltage range provides flexibility in application. - Dimming control capability allows for customized lighting levels.

Disadvantages: - Limited maximum output current may not be suitable for high-power LED applications. - Operating temperature range may restrict usage in extreme environments.

Working Principles

The LM2753SD operates as a buck converter, converting the input voltage to a lower output voltage suitable for driving LEDs. It utilizes a switching regulator to efficiently regulate the output voltage while minimizing power loss. The dimming control feature adjusts the duty cycle of the switching regulator, thereby controlling the brightness of the LEDs.

Detailed Application Field Plans

The LM2753SD is commonly used in various LED lighting applications, including: - Residential lighting - Commercial lighting - Automotive lighting - Industrial lighting - Outdoor lighting

Detailed and Complete Alternative Models

Some alternative models that can be considered for LED lighting applications are: - LM3409: High-efficiency LED driver IC - LT3799: Synchronous step-down LED driver - TPS92550: Constant current buck LED driver - MAX16834: High-brightness LED driver with integrated MOSFET

These alternative models offer similar functionalities and can be evaluated based on specific application requirements.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق LM2753SD في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of LM2753SD in technical solutions:

  1. Q: What is LM2753SD? A: LM2753SD is a specific model of power management integrated circuit (PMIC) designed for use in various technical solutions.

  2. Q: What are the key features of LM2753SD? A: LM2753SD offers multiple voltage regulators, power switches, and other essential functions required for efficient power management in electronic devices.

  3. Q: What types of technical solutions can LM2753SD be used in? A: LM2753SD can be used in a wide range of applications, including smartphones, tablets, portable gaming devices, IoT devices, and other battery-powered electronics.

  4. Q: How does LM2753SD help in power management? A: LM2753SD provides voltage regulation, power sequencing, and protection features to ensure stable and efficient power delivery to different components of a device.

  5. Q: Can LM2753SD support multiple power rails? A: Yes, LM2753SD supports multiple power rails, allowing it to provide different voltages to various parts of a device simultaneously.

  6. Q: Does LM2753SD have any built-in protection features? A: Yes, LM2753SD includes overvoltage protection, undervoltage lockout, thermal shutdown, and short-circuit protection to safeguard the device and its components.

  7. Q: What is the input voltage range supported by LM2753SD? A: LM2753SD typically supports an input voltage range of 2.7V to 5.5V, making it compatible with various power sources, such as batteries and USB ports.

  8. Q: Can LM2753SD operate in low-power modes? A: Yes, LM2753SD offers low-power modes to optimize power consumption during standby or idle periods, helping to extend battery life.

  9. Q: Is LM2753SD programmable or configurable? A: LM2753SD can be programmed or configured through its I2C interface, allowing customization of various parameters and settings.

  10. Q: Are there any application notes or reference designs available for LM2753SD? A: Yes, the manufacturer provides application notes, datasheets, and reference designs that can help engineers in implementing LM2753SD in their technical solutions.

Please note that the specific details and answers may vary depending on the manufacturer's documentation and the requirements of the technical solution.