TPS92640PWP/NOPB

Product Overview

Category

The TPS92640PWP/NOPB belongs to the category of integrated circuits (ICs) specifically designed for lighting applications.

Use

This IC is primarily used for controlling and driving high-power LEDs in automotive lighting systems.

Characteristics

• High efficiency: The TPS92640PWP/NOPB offers excellent power conversion efficiency, ensuring optimal energy utilization.
• Wide input voltage range: It can operate with a wide range of input voltages, making it suitable for various automotive lighting applications.
• Dimming control: This IC provides flexible dimming control options, allowing precise adjustment of LED brightness.
• Thermal protection: It incorporates thermal protection mechanisms to prevent overheating and ensure safe operation.
• Compact package: The TPS92640PWP/NOPB is available in a small-sized package, enabling space-efficient integration into lighting modules.

Package and Quantity

The TPS92640PWP/NOPB is packaged in a PowerPAD HTSSOP-28 package. It is typically sold in reels containing a specified quantity of ICs.

Specifications

• Input voltage range: 4.5V to 65V
• Output current: Up to 1.5A
• Dimming control interface: PWM or analog
• Operating temperature range: -40°C to 125°C
• Efficiency: Up to 95%
• Protection features: Over-temperature, over-voltage, and short-circuit protection

Pin Configuration

The TPS92640PWP/NOPB has a total of 28 pins arranged as follows:

Pin Number | Pin Name | Description -----------|----------|------------ 1 | VIN | Input voltage 2 | GND | Ground 3 | VCC | Supply voltage 4 | EN | Enable pin 5 | DIM | Dimming control input 6-13 | LX1-LX8 | LED driver outputs 14 | VREF | Reference voltage output 15-18 | NC | No connection 19-28 | AGND, PGND, FB, COMP, SS, RT, CT, BST, SW, PVCC | Various power and control pins

Functional Features

• LED current regulation: The TPS92640PWP/NOPB ensures precise regulation of LED currents, maintaining consistent brightness levels.
• Fault detection and protection: It incorporates fault detection mechanisms to identify issues such as over-temperature, over-voltage, and short-circuits, triggering appropriate protection measures.
• Flexible dimming control: The IC supports both PWM and analog dimming control methods, allowing customization of lighting effects.
• High switching frequency: The TPS92640PWP/NOPB operates at a high switching frequency, minimizing ripple and enhancing overall performance.

Advantages and Disadvantages

Advantages

• Efficient power conversion, leading to reduced energy consumption.
• Wide input voltage range enables compatibility with various automotive systems.
• Compact package facilitates integration into space-constrained lighting modules.
• Comprehensive protection features ensure safe and reliable operation.
• Flexible dimming control options allow for versatile lighting designs.

Disadvantages

• Limited output current capacity may not be suitable for high-power LED applications requiring higher currents.
• Complex pin configuration may require careful attention during circuit design and layout.

Working Principles

The TPS92640PWP/NOPB operates as a buck LED driver, converting the input voltage to a regulated current suitable for driving high-power LEDs. It utilizes a pulse-width modulation (PWM) control scheme to adjust the LED brightness according to the input signal received through the DIM pin. The IC incorporates various protection mechanisms to safeguard against faults and ensure the longevity of the LEDs and the driver itself.

Application Field Plans

The TPS92640PWP/NOPB is widely used in automotive lighting applications, including headlights, taillights, daytime running lights (DRLs), and interior lighting. Its ability to regulate LED currents accurately and provide flexible dimming control makes it suitable for creating dynamic lighting effects in vehicles.

Alternative Models

• TPS92641PWP/NOPB
• TPS92642PWP/NOPB
• TPS92643PWP/NOPB
• TPS92644PWP/NOPB

These alternative models offer similar functionality and characteristics to the TPS92640PWP/NOPB, providing options for different current requirements or specific application needs.

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