TLC5955RTQR

$4.62

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

SKU:1df723f7af54 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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TLC5955RTQR

Overview

The TLC5955RTQR is a Texas Instruments LED driver IC featuring 48 constant-current sink outputs in a 56-VFQFN package. It operates on a 3V to 5.5V supply with up to 10V output voltage. The device supports linear topology and shift register control, offering channel currents of 23.9mA or 31.9mA. It includes internal switches for direct LED connection.

Feature Summary

Integrates 48 constant-current sink channels for high-density LED driving
Utilizes shift register interface for serial data input and daisy-chain capability
Provides programmable current control for precise brightness adjustment
Includes internal power switches to simplify external circuit design

Applications

Signage displays
LED matrix panels
High-density LED lighting arrays

Procurement Notes

Verify the specific suffix RTQR corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the 56-QFN(8x8) footprint matches the target PCB layout dimensions. Ensure thermal pad soldering procedures align with the manufacturer's reflow profile recommendations for this surface-mount package type.

Selection Notes

Select this component when a high channel count is needed within a compact footprint. It is suitable for applications requiring independent current control per channel without external boost converters. Consider the linear topology limitations regarding voltage headroom compared to switching alternatives. Evaluate the operating temperature range against the environmental conditions of the final product.

Part Context

This part belongs to the TLC5955 family of LED drivers from Texas Instruments. It shares functional similarities with other members like the TLC5955DCA but differs in package type and shipping configuration. The RTQR variant specifically denotes the reel-based delivery method, distinguishing it from tube-packaged equivalents while maintaining identical electrical characteristics.