TPS92601BQPWPRQ1 - English Editing Encyclopedia Entry

Product Overview

Category

The TPS92601BQPWPRQ1 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 LED current regulation, ensuring optimal performance and longevity of the lighting system.

Characteristics

• High efficiency: The TPS92601BQPWPRQ1 offers high power conversion efficiency, minimizing energy losses and maximizing the overall system efficiency.
• Robust design: This IC is designed to withstand harsh automotive environments, including wide temperature ranges, voltage transients, and electromagnetic interference.
• Flexible dimming options: It supports various dimming techniques, such as analog, PWM, and hybrid dimming, allowing precise control over the brightness levels of the LEDs.
• Protection features: The TPS92601BQPWPRQ1 incorporates multiple protection mechanisms, including overvoltage protection, overcurrent protection, and thermal shutdown, ensuring safe operation and preventing damage to the LEDs and the IC itself.

Package and Quantity

The TPS92601BQPWPRQ1 is available in a small-footprint 20-pin HTSSOP package. It is typically sold in reels or tubes containing a specified quantity of ICs, usually ranging from 250 to 3000 units per package.

Specifications

• Input voltage range: 4.5V to 40V
• Output current range: Up to 1.5A
• Dimming control interface: Analog, PWM, or hybrid dimming
• Operating temperature range: -40°C to 125°C
• Efficiency: Up to 95%
• Protection features: Overvoltage, overcurrent, and thermal shutdown

Detailed Pin Configuration

The TPS92601BQPWPRQ1 features a 20-pin HTSSOP package with the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. VCC: Supply voltage for internal circuitry
4. DIM: Dimming control input
5. PWM: Pulse-width modulation dimming input
6. ADJ: Analog dimming control input
7. EN: Enable pin
8. FAULT: Fault indication output
9. ISET: LED current set pin
10. VREF: Reference voltage output
11. AGND: Analog ground
12. PGND: Power ground
13. LX: Switching node connection
14. SW: Switching node connection
15. BST: Bootstrap capacitor connection
16. FB: Feedback pin
17. CS: Current sense pin
18. SS/TR: Soft-start/thermal shutdown pin
19. UVLO: Undervoltage lockout pin
20. VSENSE: Voltage sense pin

Functional Features

• LED current regulation: The TPS92601BQPWPRQ1 ensures accurate and stable LED current regulation, providing consistent brightness levels.
• Dimming control: It supports various dimming techniques, allowing precise control over the LED brightness according to the application requirements.
• Fault detection: The IC monitors various fault conditions, such as overvoltage, overcurrent, and thermal issues, and provides a fault indication output for system diagnostics.
• Protection mechanisms: The TPS92601BQPWPRQ1 incorporates built-in protection features to safeguard the LEDs and the IC from potential damage due to abnormal operating conditions.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and improved energy efficiency.
• Robust design ensures reliable operation in challenging automotive environments.
• Flexible dimming options enable customization of lighting effects.
• Comprehensive protection mechanisms enhance system reliability and longevity.

Disadvantages

• Limited output current range may not be suitable for high-power LED applications requiring higher currents.
• Availability in only one package option may limit compatibility with certain board layouts.

Working Principles

The TPS92601BQPWPRQ1 operates as a buck LED driver, converting the input voltage to a regulated LED current. It utilizes a pulse-width modulation (PWM) control scheme to adjust the duty cycle of the switching transistor, thereby regulating the LED current. The dimming control inputs (analog, PWM, or hybrid) modify the duty cycle, allowing precise control over the LED brightness levels.

The IC incorporates a feedback mechanism that continuously monitors the LED current and adjusts the duty cycle accordingly to maintain the desired current regulation. Protection features such as overvoltage, overcurrent, and thermal shutdown ensure safe operation and prevent damage to the LEDs and the IC itself.

Detailed Application Field Plans

The TPS92601BQPWPRQ1 is widely used in various automotive lighting applications, including:

1. Headlights: It provides efficient LED current regulation for both low beam