LP55281TL/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: Programmable, Multi-channel, Low Power Consumption
• Package: Thin Shrink Small Outline Package (TSSOP)
• Essence: Efficiently drives and controls multiple LEDs
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Number of Channels: 3 independent channels
• LED Current: Up to 25 mA per channel
• Operating Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C-compatible
• Dimming Control: PWM or direct control
• Programmability: Allows custom programming of LED patterns and sequences
• Protection Features: Over-temperature shutdown, open/shorted LED detection

Pin Configuration

The LP55281TL/NOPB IC has a total of 20 pins. The pin configuration is as follows:

1. VDD: Power supply voltage
2. GND: Ground reference
3. SDA: Serial Data Input/Output for I2C communication
4. SCL: Serial Clock Input for I2C communication
5. INT: Interrupt output
6. EN: Enable input
7. REXT: External resistor for setting the LED current
8. LED1: Channel 1 LED output
9. LED2: Channel 2 LED output
10. LED3: Channel 3 LED output
11. GPO1: General Purpose Output 1
12. GPO2: General Purpose Output 2
13. GPO3: General Purpose Output 3
14. GPO4: General Purpose Output 4
15. GPO5: General Purpose Output 5
16. GPO6: General Purpose Output 6
17. GPO7: General Purpose Output 7
18. GPO8: General Purpose Output 8
19. GPO9: General Purpose Output 9
20. GPO10: General Purpose Output 10

Functional Features

• Efficiently drives and controls multiple LEDs with independent channels
• Programmable LED patterns and sequences for versatile lighting effects
• Low power consumption, suitable for battery-powered devices
• Flexible dimming control options using PWM or direct control
• Integrated protection features to prevent over-temperature and detect open/shorted LEDs
• I2C-compatible interface for easy integration into existing systems

Advantages and Disadvantages

Advantages: - Customizable LED patterns and sequences - Low power consumption - Integrated protection features - Versatile dimming control options

Disadvantages: - Limited number of channels (3)

Working Principles

The LP55281TL/NOPB LED driver IC operates by receiving commands through the I2C interface. It uses these commands to control the current flowing through each channel, thereby controlling the brightness of the connected LEDs. The programmability of the IC allows for customization of LED patterns and sequences, enabling various lighting effects.

The IC also incorporates protection features such as over-temperature shutdown and open/shorted LED detection. These features ensure safe operation and prevent damage to the LEDs and the IC itself.

Detailed Application Field Plans

The LP55281TL/NOPB LED driver IC finds applications in various fields, including:

1. Automotive Lighting: Used in interior and exterior automotive lighting systems, providing customizable lighting effects.
2. Portable Devices: Integrated into smartphones, tablets, and wearable devices to drive indicator LEDs and enhance user experience.
3. Gaming Consoles: Enables dynamic and programmable LED lighting effects in gaming consoles and accessories.
4. Home Automation: Used in smart lighting systems to control and customize the illumination of different areas within a home.
5. Industrial Lighting: Provides efficient and programmable LED driving capabilities for industrial lighting applications.

Detailed Alternative Models

1. LP55280TL/NOPB: Similar to LP55281TL/NOPB, but with 2 independent channels instead of 3.
2. LP55282TL/NOPB: Similar to LP55281TL/NOPB, but with 4 independent channels instead of 3.
3. LP55283TL/NOPB: Similar to LP55281TL/NOPB, but with 6 independent channels instead of 3.

These alternative models offer different channel configurations to suit specific application requirements while maintaining similar functionality and characteristics.

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