TPS61183RTJT

Product Overview

Category

The TPS61183RTJT belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used for driving white LEDs in backlighting applications, such as LCD displays in various electronic devices.

Characteristics

• High efficiency: The TPS61183RTJT offers high efficiency conversion of input voltage to drive the LEDs, resulting in reduced power consumption.
• Wide input voltage range: It can operate with input voltages ranging from 2.7V to 18V, making it suitable for a wide range of applications.
• Adjustable output current: The IC allows for adjustable output current to control the brightness of the LEDs.
• Dimming control: It supports both analog and PWM dimming control methods, providing flexibility in adjusting the LED brightness.
• Overvoltage protection: The TPS61183RTJT incorporates overvoltage protection to safeguard the LEDs from potential damage.

Package and Quantity

The TPS61183RTJT is available in a small form factor package known as WQFN (Wafer Level Chip Scale Package). It is supplied in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 2.7V to 18V
• Output Current Range: Up to 30mA
• Operating Temperature Range: -40°C to +85°C
• Dimming Control: Analog and PWM
• Efficiency: Up to 90%
• Overvoltage Protection Threshold: 20V

Pin Configuration

The TPS61183RTJT has a total of 16 pins arranged as follows:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. FB: Feedback pin
5. DIM: Dimming control pin
6. VOUT: Output voltage pin
7. SW: Switching node pin
8. PGND: Power ground pin
9. LX: Inductor connection pin
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• High-efficiency boost converter for driving white LEDs
• Adjustable output current for LED brightness control
• Support for both analog and PWM dimming control methods
• Overvoltage protection to safeguard the LEDs
• Wide input voltage range for versatile applications

Advantages and Disadvantages

Advantages

• High efficiency conversion reduces power consumption
• Wide input voltage range allows for compatibility with various power sources
• Adjustable output current enables precise control of LED brightness
• Dimming control options provide flexibility in lighting applications
• Overvoltage protection ensures LED longevity and reliability

Disadvantages

• Limited maximum output current may not be suitable for high-power LED applications
• Requires external components (inductor, capacitors) for proper operation

Working Principles

The TPS61183RTJT operates as a boost converter, converting the input voltage to a higher voltage required to drive the white LEDs. It utilizes a switching regulator topology to efficiently step up the voltage while maintaining high power conversion efficiency. The IC incorporates a feedback mechanism to regulate the output current and maintain consistent LED brightness. Dimming control can be achieved through either analog or PWM methods, allowing for adjustable brightness levels.

Application Field Plans

The TPS61183RTJT is widely used in various electronic devices that require backlighting, such as: - LCD monitors and televisions - Mobile phones and tablets - Automotive displays - Portable gaming consoles - Industrial control panels

Alternative Models

• TPS61180RTJT
• TPS61181RTJT
• TPS61182RTJT
• TPS61184RTJT
• TPS61185RTJT

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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