TPS92691QPWPQ1 - English Editing Encyclopedia Entry

Product Overview

Category

The TPS92691QPWPQ1 belongs to the category of integrated circuits (ICs) specifically designed for automotive lighting applications.

Use

This product is primarily used for controlling and driving high-power LEDs in automotive lighting systems. It provides efficient and reliable power management, enabling precise control over LED brightness and ensuring optimal performance.

Characteristics

• High efficiency: The TPS92691QPWPQ1 offers excellent power conversion efficiency, minimizing energy losses and maximizing the overall system efficiency.
• Robust design: This IC is built to withstand harsh automotive environments, including wide temperature ranges, voltage transients, and electromagnetic interference.
• Dimming capabilities: It supports various dimming techniques such as pulse width modulation (PWM), allowing flexible control over LED brightness levels.
• Fault protection: The TPS92691QPWPQ1 incorporates comprehensive protection features, including overvoltage, overcurrent, and thermal shutdown, ensuring safe operation and preventing damage to the LEDs.

Package and Essence

The TPS92691QPWPQ1 is available in a small-footprint PowerPAD™ package, which enhances thermal dissipation and simplifies PCB layout. Its essence lies in its ability to efficiently drive high-power LEDs while providing advanced control and protection features.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input voltage range: 4.5V to 40V
• Output current capability: Up to 1.5A
• PWM dimming frequency range: 100Hz to 20kHz
• Operating temperature range: -40°C to 125°C
• Integrated fault protection features: Overvoltage, overcurrent, and thermal shutdown

Detailed Pin Configuration

The TPS92691QPWPQ1 features the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. EN: Enable pin
4. DIM: Dimming control input
5. VOUT: Output voltage
6. PGND: Power ground
7. ISET: Current sense resistor connection
8. FB: Feedback pin

Functional Features

• High-efficiency buck converter topology for power conversion
• Integrated gate driver for driving high-power LEDs
• Adjustable current regulation for precise LED current control
• PWM dimming control for flexible brightness adjustment
• Comprehensive fault protection mechanisms for safe operation

Advantages and Disadvantages

Advantages

• Efficient power management, minimizing energy losses
• Robust design suitable for automotive environments
• Flexible dimming capabilities for optimal lighting control
• Comprehensive fault protection for enhanced reliability

Disadvantages

• Limited output current capability (up to 1.5A)
• Requires external current sense resistor for accurate current regulation

Working Principles

The TPS92691QPWPQ1 operates as a buck converter, converting the input voltage to a regulated output voltage suitable for driving high-power LEDs. It utilizes a pulse width modulation (PWM) technique to control the LED brightness. The integrated gate driver ensures efficient switching of the LEDs, while the feedback mechanism regulates the LED current based on the desired dimming level.

Detailed Application Field Plans

The TPS92691QPWPQ1 is widely used in various automotive lighting applications, including:

1. Headlights: Provides efficient and reliable power management for high-power LED headlights, enabling precise control over beam intensity and direction.
2. Daytime running lights (DRL): Ensures optimal performance and energy efficiency for DRL systems, enhancing vehicle visibility during daylight hours.
3. Tail lights: Enables flexible dimming control for tail lights, allowing drivers to adjust the brightness according to different driving conditions.
4. Interior lighting: Provides efficient power management for interior LED lighting, enhancing the overall ambiance and comfort of the vehicle.

Detailed and Complete Alternative Models

1. TPS92692QPWPQ1: Similar to the TPS92691QPWPQ1, but with higher output current capability (up to 3A).
2. TPS92693QPWPQ1: Offers additional features such as integrated diagnostics and fault reporting for enhanced system monitoring.
3. TPS92694QPWPQ1: Designed specifically for RGB LED applications, allowing precise control over color mixing and dynamic lighting effects.

Note: The above alternative models are part of the same product family and share similar characteristics and pin configurations.

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