TPS92611QDGNRQ1

Product Overview

Category

The TPS92611QDGNRQ1 belongs to the category of integrated circuits (ICs) specifically designed for automotive lighting applications.

Use

This IC is primarily used for controlling and driving high-power LEDs in automotive lighting systems. It provides efficient power management and precise current regulation, ensuring optimal performance and reliability.

Characteristics

• High efficiency: The TPS92611QDGNRQ1 offers high power conversion efficiency, minimizing energy losses and maximizing the overall system efficiency.
• Precise current regulation: It provides accurate current control, allowing for consistent brightness levels across multiple LEDs.
• Robust design: This IC is designed to withstand harsh automotive environments, including temperature variations, voltage transients, and electromagnetic interference.
• Dimming capabilities: The TPS92611QDGNRQ1 supports various dimming techniques, such as pulse width modulation (PWM), enabling flexible control of LED brightness.
• Protection features: It incorporates several protection mechanisms, including overvoltage protection, overcurrent protection, and thermal shutdown, ensuring safe operation and preventing damage to the IC and LEDs.

Package and Quantity

The TPS92611QDGNRQ1 is available in a small-outline package (DGN) with a nominal dimension of 8 mm x 6 mm. It is supplied in tape and reel packaging, making it suitable for automated assembly processes. The quantity per reel typically ranges from 2500 to 4000 units, depending on the manufacturer's specifications.

Specifications

• Input voltage range: 4.5 V to 40 V
• Output current range: Up to 1.5 A
• Operating temperature range: -40°C to +125°C
• PWM dimming frequency: Up to 25 kHz
• Fault detection and reporting: Overvoltage, overcurrent, and thermal shutdown

Pin Configuration

The TPS92611QDGNRQ1 features a 10-pin package with the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. VCC: Supply voltage for internal circuitry
4. EN: Enable pin for turning the IC on/off
5. DIM: Dimming control input
6. FB: Feedback pin for current regulation
7. OUT: Output pin for LED connection
8. NC: No connection
9. NC: No connection
10. NC: No connection

Functional Features

• Integrated boost converter: The TPS92611QDGNRQ1 incorporates a high-efficiency boost converter to step up the input voltage to the required level for driving high-power LEDs.
• Current regulation: It provides precise current regulation to ensure consistent brightness levels and prevent LED damage due to excessive current.
• PWM dimming control: The IC supports pulse width modulation (PWM) dimming, allowing for flexible control of LED brightness levels.
• Fault detection and protection: The TPS92611QDGNRQ1 includes built-in fault detection mechanisms to protect against overvoltage, overcurrent, and thermal issues, ensuring safe operation and preventing damage to the IC and LEDs.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Precise current regulation for consistent brightness
• Robust design for automotive applications
• Flexible dimming capabilities
• Built-in protection features

Disadvantages

• Limited output current range (up to 1.5 A)
• Relatively small package size may require careful PCB layout considerations

Working Principles

The TPS92611QDGNRQ1 operates by converting the input voltage from the automotive battery to a higher voltage using an integrated boost converter. This boosted voltage is then regulated to provide a constant current to the connected LEDs. The IC incorporates feedback control to maintain the desired current level, ensuring consistent brightness across the LEDs.

The dimming control input allows for adjusting the LED brightness using PWM signals. The TPS92611QDGNRQ1 detects faults such as overvoltage, overcurrent, and excessive temperature, triggering protection mechanisms to prevent damage to the IC and LEDs.

Application Field Plans

The TPS92611QDGNRQ1 is widely used in various automotive lighting applications, including:

1. Headlights: It provides efficient and precise control of high-power LEDs used in automotive headlights, ensuring optimal visibility and safety.
2. Daytime running lights (DRL): The IC enables accurate current regulation and dimming control for DRLs, enhancing vehicle visibility during daytime.
3. Tail lights: It offers reliable power management and dimming capabilities for tail lights, improving visibility and signaling to other drivers.
4. Interior lighting: The TPS92611QDGNRQ1 can be utilized in interior lighting systems, providing efficient and controlled illumination for the vehicle's cabin.

Alternative Models