TLC5921DAPRG4 Equivalent & Substitute Parts

Part Overview

The TLC5921DAPRG4 is a 16-output linear LED driver IC manufactured by Texas Instruments, designed for shift register-based LED dimming applications. This device features 80mA per-channel output capability and operates across a 4.5V to 5.5V supply voltage range. The part is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and production continuity. Substitute parts must maintain identical electrical specifications and package compatibility to ensure direct replacement without circuit redesign.

Substiute Parts

TLC5921DAPRG4

Texas InstrumentsIn Stock: 813TLC5921DAPRG4 Datasheet

Current PartRFQ

TLC5921DAPR

Texas InstrumentsIn Stock: 2240TLC5921DAPR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC5921DAPRG4 is determined by strict equivalence across the following critical parameters:

• 16-output linear shift register topology
• 80mA per-channel output current
• 4.5V to 5.5V supply voltage specification
• 17V output voltage capability
• 20MHz frequency operation
• 32-PowerTSSOP package footprint
• Surface mount configuration
• Identical thermal and compliance ratings

The TLC5921DAPR qualifies as a parametric equivalent based on complete alignment with all electrical and mechanical specifications. The primary distinction is product status: TLC5921DAPRG4 is obsolete, while TLC5921DAPR maintains active production status.

Parameter Comparison

Engineering Selection Recommendations

The TLC5921DAPR is the direct substitute for the obsolete TLC5921DAPRG4. Both parts are manufactured by Texas Instruments and share identical electrical specifications, package geometry, and compliance certifications. The TLC5921DAPR maintains active production status, ensuring supply chain availability and long-term support. Both devices meet ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and consumer applications. Selection of the TLC5921DAPR eliminates obsolescence risk while maintaining full functional and mechanical compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can TLC5921DAPR be used as a direct replacement for TLC5921DAPRG4?

A: Yes. Both parts are electrically and mechanically identical. The TLC5921DAPR is the active production equivalent of the obsolete TLC5921DAPRG4. No circuit modifications are required.

Q: Are there any differences in package dimensions between these parts?

A: No. Both parts use the 32-PowerTSSOP package with identical footprint dimensions (0.240" width, 6.10mm). PCB layouts and assembly processes remain unchanged.

Q: What is the significance of the product status difference?

A: TLC5921DAPRG4 is classified as obsolete and subject to discontinuation. TLC5921DAPR is in active production, ensuring continued availability, technical support, and supply chain stability for new designs and production runs.

Q: Do both parts meet the same compliance standards?

A: Yes. Both TLC5921DAPRG4 and TLC5921DAPR are ROHS3 compliant and REACH unaffected. Moisture sensitivity level (MSL 3, 168 hours) is identical for both parts.

Q: Are there packaging format differences between these parts?

A: The TLC5921DAPRG4 is supplied in standard packaging, while TLC5921DAPR is available in Cut Tape (CT) and Digi-Reel® formats. Both formats contain identical die and electrical specifications; packaging format does not affect component performance.