TLC5921DAPG4

Description：IC LED DRVR LINEAR 80MA 32HTSSOP
Series：-
Mfr：Texas Instruments
Package：Tube

SKU:0c4db1984ebd Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC LED DRVR LINEAR 80MA 32HTSSOP
Series：-
Mfr：Texas Instruments
Package：Tube
Type：Linear
Topology：Shift Register
Internal Switch(s)：Yes
Number of Outputs：16
Voltage - Supply (Min)：4.5V
Voltage - Supply (Max)：5.5V
Voltage - Output：17V
Current - Output / Channel：80mA
Frequency：20MHz
Dimming：-
Applications：-
Operating Temperature：-20°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：32-PowerTSSOP (0.240", 6.10mm Width)
Supplier Device Package：32-HTSSOP
Grade：-
Qualification：-

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TLC5921DAPG4

Overview

The TLC5921DAPG4 is an obsolete linear LED driver IC from Texas Instruments, featuring a 32-PowerTSSOP package. It provides 16 constant-current outputs with a maximum channel current of 80mA and an output voltage rating of 17V. The device operates on a supply voltage between 4.5V and 5.5V, supporting a shift register interface with a frequency up to 20MHz. It functions within a temperature range of -20°C to 85°C.

Feature Summary

Integrates 16 independent linear constant-current channels for precise LED control
Utilizes a serial shift register interface for data input and latch functionality
Features internal switches for direct LED connection without external components

Applications

LED lighting driver circuits
Display backlighting systems
General-purpose LED array driving

Procurement Notes

This component is officially marked as obsolete and no longer manufactured by Texas Instruments. Procurement should focus on verified surplus stock or authorized distributors holding remaining inventory. Buyers must verify the authenticity and storage history of available units due to the part's discontinued status. Cross-reference with equivalent active parts is recommended for new designs.

Selection Notes

Designers requiring this specific topology should consider that the TLC5921DAPG4 is end-of-life. Selection should prioritize functional equivalents such as the TLC5921DAP if legacy compatibility is mandatory. Evaluate alternative modern LED drivers that offer similar pin counts and current capabilities while ensuring availability for long-term production support.

Part Context

The TLC5921 belongs to Texas Instruments' family of linear LED drivers designed for applications requiring simple serial control and multiple output channels. This specific variant in the 32-HTSSOP package was intended for compact PCB layouts. As an obsolete part, it represents a previous generation of PMIC solutions before newer integrated architectures became standard.