TLC5940QRHBREP

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TLC5940QRHBREP

IC LED DRVR LINEAR 120MA 32VQFN

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Type Linear
Topology Shift Register
InternalSwitch(s) Yes
NumberofOutputs 16
Voltage-Supply(Min) 3V
Voltage-Supply(Max) 5.5V
Voltage-Output 17V
Current-Output/Channel 120mA
Frequency 30MHz
Applications Backlight, Signage
OperatingTemperature -40°C ~ 125°C (TA)
MountingType Surface Mount
Package/Case 32-VFQFN Exposed Pad

概述

Description

The TLC5940QRHBREP is a 16-channel, constant-current LED driver manufactured by Texas Instruments. Noted for its high reliability and suitability for demanding applications, this device is part of the Enhanced Products (EP) portfolio, offering extended temperature ranges and enhanced performance. It features grayscale PWM dimming with a 12-bit resolution, allowing for precise control of LED brightness levels. The device operates with a constant output current adjustable via an external resistor, supporting output currents up to 120 mA per channel.
Key features include open LED detection, thermal shutdown, and an error information output for enhanced fault tolerance. The device can be daisy-chained for applications requiring more than 16 channels by using its serial data interface, which is compatible with various microcontrollers. The TLC5940QRHBREP is ideal for applications in automotive lighting, display backlighting, and any systems requiring reliable LED control under harsh conditions. Its robust design ensures high performance and longevity, making it well-suited for use in mission-critical systems.

Features

The TLC5940QRHBREP is a 16-channel LED driver from Texas Instruments, designed for applications requiring precise LED control. Key features include:
1. 16-Channel Output: Each channel can drive a separate LED with 12-bit grayscale (GS) PWM control and 6-bit dot correction (DC) for brightness uniformity.
2. Constant Current Sink: Provides constant current to each LED, ensuring consistent brightness regardless of LED forward voltage variations. Current is programmable via an external resistor.
3. Enhanced Product: Part of the Enhanced Product line, designed for high reliability and extended temperature ranges (-40°C to 125°C), making it suitable for automotive and industrial applications.
4. SPI-Compatible Interface: The device features a serial interface for easy integration and control via microcontrollers.
5. Built-in Error Detection: Features open LED detection and thermal shutdown to ensure safe operation.
6. Package: Comes in a 28-pin HTSSOP package, facilitating compact designs.
These features make the TLC5940QRHBREP ideal for complex LED displays and lighting applications requiring precise and reliable control.

Package

The TLC5940QRHBREP is a 28-pin HTSSOP (Heat-Shrink Small Outline Package) with exposed thermal pad. This package type is designed for efficient heat dissipation, making it suitable for high-power applications.

Pinout

The TLC5940QRHBREP is a 16-channel, constant-current LED driver from Texas Instruments, designed for applications requiring precise control over LED brightness. It is commonly used in signage, display backlighting, and other applications where multiple LEDs need to be controlled.
The device is housed in a 32-pin HTSSOP (Heat-Tolerant Shrink Small Outline Package) package. The key features of the TLC5940QRHBREP include a grayscale PWM brightness control with 12-bit resolution for each channel, and a dot correction functionality for adjusting the current for uniform brightness among LEDs.
The pin configuration includes:
- 16 output pins (OUT0 to OUT15) for controlling the connected LEDs.
- Control and data pins such as SIN (serial data input), SCLK (serial clock input), XLAT (latch signal), BLANK (blanking control), IREF (reference current), and VPRG (voltage programming).
- Power supply and ground pins such as VCC and GND.
- Functionality to daisy-chain multiple devices for expanded LED control.
The TLC5940QRHBREP is highly versatile and suitable for precision LED control tasks in various electronic applications.

Manufacturer

The TLC5940QRHBREP is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. The company's focus spans a broad range of applications, including industrial, automotive, personal electronics, and communication equipment. TI is particularly recognized for its innovations in analog chips and embedded processors, areas where it holds substantial market share. As a leader in the semiconductor industry, TI is known for its robust product portfolio and extensive support for engineers and designers looking to integrate sophisticated electronic components into their projects.

Application

The TLC5940QRHBREP is a 16-channel LED driver commonly used in applications requiring precise control of LED brightness and color. It's ideal for LED displays, signage, and lighting control systems due to its PWM functionality and grayscale dimming capabilities. The device is also used in automotive lighting systems, industrial control panels, and consumer electronics where reliable and efficient LED operation is essential. Its robust design makes it suitable for harsh environments, aligning with requirements in aerospace and defense sectors.

Equivalent

The TLC5940QRHBREP is a 16-channel LED driver with PWM functionality from Texas Instruments. Equivalent products include the STMicroelectronics STP16CP05, Maxim Integrated MAX6966, and the Toshiba TB62706B. Each has similar features like constant current LED driving and PWM control, but verify specific requirements as differences in maximum current, voltage, and package type might exist. Always consult the datasheets for precise compatibility.

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