TPS92512DGQR

Product Overview

Category

The TPS92512DGQR belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This IC is primarily used for driving high-power LEDs in various lighting applications, such as automotive lighting, architectural lighting, and general illumination.

Characteristics

• High efficiency: The TPS92512DGQR offers high efficiency power conversion, resulting in reduced energy consumption.
• Dimming control: It provides precise dimming control for LED brightness adjustment.
• Thermal protection: The IC incorporates thermal protection mechanisms to prevent overheating.
• Wide input voltage range: It can operate with a wide input voltage range, making it suitable for different power supply configurations.

Package

The TPS92512DGQR is available in a small outline package (SOP) with 10 pins. The package type is DGQ and the package dimensions are 3 mm x 3 mm.

Essence

The essence of the TPS92512DGQR lies in its ability to efficiently drive high-power LEDs while providing dimming control and thermal protection.

Packaging/Quantity

The TPS92512DGQR is typically packaged in reels or tubes. Each reel contains 2500 units, while each tube contains 98 units.

Specifications

• Input voltage range: 4.5 V to 65 V
• Output current range: Up to 1 A
• Switching frequency: Adjustable from 100 kHz to 2 MHz
• Dimming control: Analog or PWM dimming
• Operating temperature range: -40°C to +125°C

Detailed Pin Configuration

The TPS92512DGQR has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin for turning on/off the IC
4. DIM: Dimming control pin
5. FB: Feedback pin for regulating the output voltage
6. VCC: Supply voltage pin for internal circuitry
7. SW: Switching node pin for connecting to the LED load
8. PGND: Power ground pin
9. AGND: Analog ground pin
10. NC: No connection pin

Functional Features

1. High efficiency power conversion: The TPS92512DGQR utilizes advanced power management techniques to achieve high efficiency, reducing energy waste.
2. Precise dimming control: It allows for accurate dimming control of LEDs, enabling customized lighting levels.
3. Thermal protection: The IC incorporates thermal shutdown and over-temperature protection mechanisms to prevent damage due to excessive heat.
4. Wide input voltage range: The TPS92512DGQR can handle a wide range of input voltages, providing flexibility in various applications.

Advantages and Disadvantages

Advantages

• High efficiency power conversion leads to energy savings.
• Precise dimming control allows for versatile lighting options.
• Thermal protection ensures safe operation.
• Wide input voltage range enhances compatibility.

Disadvantages

• Limited output current capability may not be suitable for high-power LED applications requiring higher currents.
• The small package size may pose challenges during assembly and soldering processes.

Working Principles

The TPS92512DGQR operates as a buck LED driver, converting the higher input voltage to a lower voltage suitable for driving LEDs. It employs a pulse-width modulation (PWM) technique to regulate the LED brightness. The feedback mechanism continuously monitors the output voltage and adjusts the duty cycle accordingly. The IC also incorporates protection features to safeguard against over-temperature conditions and other potential faults.

Detailed Application Field Plans

The TPS92512DGQR finds application in various fields, including:

1. Automotive lighting: It can be used in headlights, taillights, and interior lighting systems in automobiles.
2. Architectural lighting: The IC is suitable for architectural lighting installations, such as accent lighting and façade illumination.
3. General illumination: It can be employed in residential and commercial lighting applications, providing efficient and controllable LED lighting solutions.

Detailed and Complete Alternative Models

1. TPS92515DGQR: Similar to the TPS92512DGQR, this IC offers high-efficiency LED driving with dimming control. It has a slightly higher output current capability.
2. TPS92518DGQR: This alternative model provides enhanced thermal management features along with high efficiency and dimming control capabilities.
3. TPS92520DGQR: Designed for higher power LED applications, this IC offers a higher output current range while maintaining efficiency and dimming control functionality.

(Note: These alternative models are provided for reference purposes and may have different specifications and pin configurations. Please refer to the respective datasheets for detailed information.)

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