TLC6948RGER LED Driver IC Equivalent & Substitute Parts

Part Overview

The TLC6948RGER is a linear LED driver IC manufactured by Texas Instruments, designed for LED lighting applications. This 16-output constant current driver operates across a 3V to 5.5V supply range and is packaged in a 24-VQFN (4x4) surface mount configuration. The device is currently in active production status with 751 units available in inventory. The TLC6948RGER serves applications requiring direct LED current control without dimming capability. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit functional equivalents.

Substiute Parts

TLC6948RGER

Texas InstrumentsIn Stock: 785TLC6948RGER Datasheet

Current PartRFQ

STP16DPPS05MTR

STMicroelectronicsIn Stock: 1982STP16DPPS05MTR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC6948RGER are identified based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Number of Outputs: 16 channels (required match)
• Supply Voltage Range: 3V to 5.5V (required overlap)
• Mounting Type: Surface Mount (required match)
• Internal Switches: Present (required match)
• Product Status: Active (required for current sourcing)
• RoHS3 Compliance: Required for regulatory alignment

Secondary Compatibility Factors:

• Package type compatibility (form factor and pin count)
• Operating temperature range (minimum -40°C required)
• Output voltage capability
• Topology classification (Linear)

The STP16DPPS05MTR from STMicroelectronics meets the primary substitution criteria with 16 outputs, matching supply voltage range (3V to 5.5V), surface mount configuration, and active product status. Both devices are ROHS3 compliant and MSL Level 1 rated.

Parameter Comparison

Engineering Selection Recommendations

Both the TLC6948RGER and STP16DPPS05MTR are active, ROHS3-compliant devices suitable for LED driver applications requiring 16 constant current outputs within the 3V to 5.5V supply range. Selection between these parts should be based on the following factors:

TLC6948RGER Selection Criteria:

• Preferred when 24-VQFN package footprint is specified in PCB design
• Suitable for applications with operating temperature requirements up to 85°C
• Texas Instruments sourcing preferred for supply chain consistency

STP16DPPS05MTR Selection Criteria:

• Preferred when 24-SOIC package footprint is available or required
• Suitable for applications requiring extended operating temperature range to 125°C
• STMicroelectronics sourcing preferred for alternative supply chain
• Higher inventory availability (1890 units vs. 751 units)

Both devices maintain identical supply voltage specifications and internal switch architecture. Package form factor differences require PCB layout verification before substitution.

Frequently Asked Questions (FAQ)

Q: Can the STP16DPPS05MTR directly replace the TLC6948RGER on the same PCB?

A: Direct PCB replacement is not possible due to package differences. The TLC6948RGER uses 24-VQFN (4x4) packaging while the STP16DPPS05MTR uses 24-SOIC (0.295", 7.50mm Width) packaging. PCB layout redesign is required for substitution.

Q: Are the supply voltage requirements identical between these parts?

A: Yes. Both devices operate across the 3V to 5.5V supply voltage range, making them electrically compatible in this specification.

Q: What is the key difference in topology between these two parts?

A: The TLC6948RGER uses constant current topology without dimming capability. The STP16DPPS05MTR uses shift register topology with dimming capability. Both provide 16 output channels with internal switches.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TLC6948RGER and STP16DPPS05MTR are ROHS3 compliant, REACH unaffected, and rated MSL Level 1 (Unlimited moisture sensitivity level).

Q: What is the operating temperature difference between these parts?

A: The TLC6948RGER operates from -40°C to 85°C. The STP16DPPS05MTR operates from -40°C to 125°C, providing a wider high-temperature operating range.

Q: Are both parts currently in active production?

A: Yes. Both devices maintain active product status with current inventory availability.