TLC5955RTQT

$5.83

Description：IC LED DRV LIN 23.9/31.9MA 56QFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:0fd1f4c44ae5 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC LED DRV LIN 23.9/31.9MA 56QFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Linear
Topology：Shift Register
Internal Switch(s)：Yes
Number of Outputs：48
Voltage - Supply (Min)：3V
Voltage - Supply (Max)：5.5V
Voltage - Output：10V
Current - Output / Channel：23.9mA, 31.9mA
Frequency：-
Dimming：-
Applications：Signage
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：56-VFQFN Exposed Pad
Supplier Device Package：56-QFN (8x8)
Grade：-
Qualification：-

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TLC5955RTQT

Overview

The TLC5955RTQT is a Texas Instruments LED driver IC featuring 48 constant-current outputs in a 56-QFN package. It operates on a 3V to 5.5V supply with 10V output capability. The device utilizes linear topology and shift register control, supporting PWM dimming. Output currents are configurable at 23.9mA or 31.9mA per channel. It functions within a -40°C to +85°C temperature range and includes internal switches for direct LED connection.

Feature Summary

Provides 48 individually controllable constant-current channels for high-density LED arrays
Integrates 12-bit PWM dimming and grayscale control via serial interface
Includes open-load detection and error flagging for system diagnostics
Features thermal shutdown protection to ensure operational safety

Applications

Signage displays
LED lighting systems
Video wall controllers

Procurement Notes

Verify the specific suffix RTQT confirms the QFN-56 package and tape-and-reel packaging format. Confirm RoHS3 compliance status matches current regulatory requirements. Check moisture sensitivity level (MSL 3) handling constraints during assembly. Ensure the ordering part number aligns with the required quantity increments for reel packaging.

Selection Notes

Select this component when 48-channel linear LED driving is required with precise PWM control. Compare against the TLC5955DCAR if HTSSOP packaging is preferred over QFN. Consider the TLC59581RTQT if boost topology is necessary for higher voltage applications. Verify that the 23.9mA or 31.9mA current settings meet the target LED specifications.

Part Context

This part belongs to the TLC5955 family of LED drivers from Texas Instruments. It shares core functionality with variants like the TLC5955RTQR, differing primarily in packaging and reel quantities. The series is designed for applications requiring high channel counts and reliable constant-current regulation in compact form factors.