TLC5947DAPRG4 Equivalent & Substitute Parts

Part Overview

The TLC5947DAPRG4 is a 24-output linear LED driver IC manufactured by Texas Instruments, designed for backlight and LED array applications. This device features a shift register topology with internal switching capability, supporting supply voltages from 3V to 5.5V and delivering 30mA per output channel. The part is packaged in a 32-HTSSOP surface mount package.

The TLC5947DAPRG4 has been discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

TLC5947DAPRG4

Texas InstrumentsIn Stock: 769TLC5947DAPRG4 Datasheet

Current PartRFQ

TLC5947DAPR

Texas InstrumentsIn Stock: 17756TLC5947DAPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC5947DAPRG4 is determined by strict equivalence across the following critical parameters:

• Output Configuration: 24 outputs with 30mA per channel capability
• Supply Voltage Range: 3V to 5.5V input tolerance
• Output Voltage Rating: 30V maximum
• Topology: Linear shift register architecture with internal switching
• Package: 32-HTSSOP surface mount form factor
• Electrical Specifications: 4MHz frequency, -40°C to 85°C operating range
• Compliance: ROHS3 compliance and MSL 3 rating

The TLC5947DAPR meets all these criteria and is classified as the manufacturer-recommended substitute. Both parts share identical electrical and mechanical specifications, with the primary distinction being product status and packaging availability.

Parameter Comparison

Engineering Selection Recommendations

The TLC5947DAPR is the direct substitute for the discontinued TLC5947DAPRG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters. The TLC5947DAPR is currently in active production status with higher inventory availability (17,650 pcs vs. 690 pcs), ensuring supply chain continuity.

Both parts carry ROHS3 compliance and identical MSL ratings, confirming suitability for equivalent manufacturing and assembly processes. The TLC5947DAPR is available in multiple packaging formats (Cut Tape and Digi-Reel), providing flexibility for different procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can the TLC5947DAPR be used as a direct replacement for the TLC5947DAPRG4?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including output count, voltage ratings, current capacity, frequency, temperature range, and package configuration. The TLC5947DAPR is the manufacturer-recommended substitute.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. The TLC5947DAPRG4 is discontinued, while the TLC5947DAPR remains in active production. Packaging availability also differs, with the TLC5947DAPR offered in Cut Tape and Digi-Reel formats.

Q: Are there any PCB layout or schematic modifications required when switching from TLC5947DAPRG4 to TLC5947DAPR?

A: No modifications are required. Both parts use the identical 32-HTSSOP package footprint and pinout, allowing direct substitution without PCB redesign.

Q: What is the MSL rating, and why does it matter?

A: Both parts carry an MSL 3 rating with a 168-hour floor life. This indicates moisture sensitivity level and the maximum time the component can be exposed to ambient conditions before soldering. Proper storage and handling procedures must be followed according to IPC standards.

Q: Is the TLC5947DAPR compliant with environmental regulations?

A: Yes. The TLC5947DAPR is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.