TPS92518HVQPWPTQ1

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: High Voltage, Automotive Grade
• Package: HVQFN-32
• Essence: Efficient LED Lighting Control
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 65V
• Output Current Range: Up to 1.5A
• Switching Frequency: 100kHz to 2.2MHz
• Dimming Control: Analog/PWM
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TPS92518HVQPWPTQ1 IC has a total of 32 pins. The pin configuration is as follows:

1. VIN: Input voltage
2. GND: Ground
3. VCC: Supply voltage for internal circuitry
4. EN: Enable pin
5. DIM: Dimming control input
6. FB: Feedback pin for output regulation
7. AGND: Analog ground
8. PGND: Power ground
9. SW: Switch node connection
10. LX: Inductor connection
11. BST: Bootstrap capacitor connection
12. COMP: Compensation pin for loop stability
13. SS: Soft-start pin
14. CS: Current sense pin
15. RT: External resistor for switching frequency control
16. PWM: Pulse Width Modulation input 17-32. NC: No Connection

Functional Features

• Wide input voltage range allows for versatile applications in automotive lighting systems.
• High efficiency and precise current regulation ensure optimal LED performance.
• Integrated protection features such as overvoltage, overcurrent, and thermal shutdown enhance system reliability.
• Flexible dimming control options enable customization of lighting effects.

Advantages and Disadvantages

Advantages: - High voltage capability makes it suitable for automotive applications. - Efficient LED control results in energy savings and extended LED lifespan. - Integrated protection features enhance system reliability.

Disadvantages: - Limited output current range may not be suitable for high-power LED applications. - Complex pin configuration may require careful PCB layout design.

Working Principles

The TPS92518HVQPWPTQ1 is a buck LED driver IC that utilizes a switching regulator topology. It converts the input voltage to a lower, regulated voltage suitable for driving LEDs. The IC employs a pulse width modulation (PWM) technique to control the LED brightness. By adjusting the duty cycle of the PWM signal, the average current flowing through the LEDs can be varied, resulting in dimming or brightening of the light output.

Detailed Application Field Plans

The TPS92518HVQPWPTQ1 LED driver IC finds application in various automotive lighting systems, including:

1. Headlights: Provides efficient and reliable LED driving for automotive headlights, offering improved visibility and energy efficiency.
2. Daytime Running Lights (DRL): Enables low-power operation during daytime, enhancing vehicle visibility while conserving energy.
3. Interior Lighting: Offers precise control over LED brightness for interior lighting applications, creating a comfortable and customizable ambiance.
4. Rear Lights: Ensures optimal performance and longevity of LED-based rear lights, such as brake lights and turn signals.

Detailed and Complete Alternative Models

1. TPS92515HVQPWPTQ1: Similar to TPS92518HVQPWPTQ1 but with a lower output current range of up to 1A.
2. TPS92520HVQPWPTQ1: Higher output current capability of up to 2A, suitable for driving higher-power LEDs.
3. TPS92530HVQPWPTQ1: Offers additional features such as fault detection and diagnostics for enhanced system monitoring.

(Note: The above alternative models are suggestions and may not cover all available options in the market.)

In conclusion, the TPS92518HVQPWPTQ1 is a high-voltage LED driver IC designed for automotive lighting applications. Its efficient control, integrated protection features, and wide input voltage range make it a reliable choice for various lighting systems.