TLC5955RTQR

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TLC5955RTQR

+БОМ

IC LED DRV LIN 23.9/31.9MA 56QFN

  • ПроизводительТехасские инструменты

  • Мфр. Часть #TLC5955RTQR

  • Пакет VQFN (RTQ)-56

  • В наличии7248

365 Дни гарантии качества

7*24 часы обслуживания каранти

90-гарантия послепродажного дня

Гарантия подлинного продукта

Спецификации

Атрибут Ценность
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Type Linear
Topology Shift Register
InternalSwitch(s) Yes
NumberofOutputs 48
Voltage-Supply(Min) 3V
Voltage-Supply(Max) 5.5V
Voltage-Output 10V
Current-Output/Channel 23.9mA, 31.9mA
Applications Signage
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 56-VFQFN Exposed Pad

Обзор

Description

The TLC5955RTQR is a 48-channel, constant-current sink LED driver from Texas Instruments. It is designed for applications requiring precise control of LED brightness and color, such as in large LED displays and architectural lighting systems. Each channel features a 16-bit grayscale PWM control, offering high-resolution dimming. Additionally, a dot correction function allows for individual LED brightness adjustment, compensating for variations in LED performance.
The TLC5955RTQR supports a maximum output current of 25 mA per channel, ensuring consistent and reliable LED operation. It includes a 24-bit shift register and data latch, which enables serial communication for data input, making it compatible with various microcontroller platforms. The device also features enhanced thermal management, under-voltage lockout, and error detection functions to protect against over-temperature and fault conditions.
Packaged in a TQFP (Thin Quad Flat Pack), the TLC5955RTQR is suitable for space-constrained applications. Its flexibility and robust feature set make it ideal for complex LED lighting designs, requiring precise color matching and intensity control.

Equivalent

The TLC5955RTQR is a 48-channel, 16-bit PWM LED driver from Texas Instruments. Equivalent products include:
1. TLC5957 from Texas Instruments - Offers similar functionality with minor differences in specifications.
2. LP3950 series from Texas Instruments - Multi-channel LED drivers with comparable features.
3. MBI5042 from Macroblock - A 16-channel constant current LED driver.
4. WS2812B - Integrated driver and RGB LED, although more integrated than TLC5955.
Compatibility depends on application-specific requirements such as output channels and current ratings.

Features

The TLC5955RTQR is a 48-channel, 16-bit LED driver designed for high-performance LED lighting applications. Key features include:
1. 48 Output Channels: Each channel offers 16-bit grayscale (GS) control and 7-bit brightness control (BC), allowing precise LED brightness and color adjustments.
2. High Resolution: With 16-bit depth, it supports up to 65536 grayscale levels per channel, enabling smooth color transitions and finer color accuracy.
3. Enhanced Drive Capability: It provides a constant-current output for LEDs, ensuring consistent brightness and color stability over various operating conditions.
4. Integrated Control Logic: Includes features for daisy chaining multiple ICs, simplifying the control of large LED arrays.
5. Power Efficiency: Designed with low power dissipation features, it helps reduce overall power consumption in LED systems.
6. Diagnostic Features: It includes open and short detection capabilities for improved reliability and maintenance ease.
7. Package: Available in a 56-pin QFN package, allowing for compact design and integration in space-constrained applications.
These features make the TLC5955RTQR suitable for LED display, signage, and advanced lighting solutions requiring high precision and control.

Pinout

The TLC5955RTQR is a 48-pin LED driver integrated circuit by Texas Instruments designed for high-performance RGB LED display applications. It features:
- 48 Pins: The TLC5955RTQR package is available in a VQFN (Very Thin Quad Flat No-lead) form with 48 pins.
- Main Functions:
- 48-Channel Constant Current LED Driver: Capable of driving up to 48 separate LED channels, each with adjustable current settings.
- Current Control: Offers 16-bit grayscale (GS) control and 7-bit global brightness control (BC) for precise LED brightness management.
- Enhancements: Includes features like error detection, pre-charge FET for ghosting reduction, and dot correction.
- Interface: Utilizes a serial interface for programming and controlling the LED channels. This interface is compatible with various microcontrollers and processors.
- Power Efficiency: Designed for high efficiency with low power consumption features.
This makes the TLC5955RTQR suitable for complex, high-resolution LED displays requiring fine-grained brightness and color control.

Manufacturer

The TLC5955RTQR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company known for designing and manufacturing a wide range of electronic components, including integrated circuits, analog chips, and embedded processors. TI serves various industries, including automotive, industrial, consumer electronics, and communications. The company is headquartered in Dallas, Texas, and is recognized for its innovation and contributions to electronics and technology sectors worldwide.

Application

The TLC5955RTQR is a high-performance, 48-channel, LED driver typically used in applications requiring precise LED control and color management. Its key application areas include large-scale LED displays, digital signage, video walls, and architectural lighting. It is also suitable for automotive interior and exterior lighting, where dynamic lighting effects and high color accuracy are important. Additionally, the device can be employed in stage lighting and entertainment applications, where synchronized lighting patterns are crucial. Its ability to manage high-resolution and high-refresh-rate displays makes it suitable for use in professional and consumer electronics that require sophisticated LED control solutions.

Package

The TLC5955RTQR is a package type of the TLC5955, a 48-channel constant-current sink LED driver by Texas Instruments. The "RTQ" designation indicates it comes in a 56-pin VQFN (Very Thin Quad Flat No-Lead) package, which enhances thermal performance and minimizes space on the PCB. This package is suitable for applications requiring high-density LED driving with efficient heat dissipation.

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