TLC5916IPWR LED Driver IC Equivalent & Substitute Parts

Part Overview

The TLC5916IPWR is an active, production-status LED driver IC manufactured by Texas Instruments. This linear shift register device provides 8 independent output channels with 120mA per-channel current capability, designed for signage and LED display applications. The device operates across a 3V to 5.5V supply range with a maximum output voltage of 20V and integrates internal switching functionality for direct LED control.

Substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or specific application parameters that remain within the allowable electrical and mechanical specifications for this product category.

Substiute Parts

TLC5916IPWR

Texas InstrumentsIn Stock: 32896TLC5916IPWR Datasheet

Current PartRFQ

TLC5917IPWR

Texas InstrumentsIn Stock: 20803TLC5917IPWR Datasheet

Parametric EquivalentRFQ

MAX6978AUE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1244MAX6978AUE+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC5916IPWR are classified based on strict adherence to the following allowable parameters:

Critical Parameters for Substitution:

• Number of Outputs: 8 channels (fixed requirement)
• Package / Case: 16-TSSOP form factor (fixed requirement)
• Topology: Shift Register (fixed requirement)
• Internal Switch(s): Yes (fixed requirement)
• Voltage - Supply Range: 3V to 5.5V (fixed requirement)
• Operating Temperature: -40°C ~ 125°C (fixed requirement)
• RoHS Status: ROHS3 Compliant (fixed requirement)
• Mounting Type: Surface Mount (fixed requirement)

Variable Parameters Allowing Substitution:

• Current - Output / Channel: 120mA (primary specification; lower ratings acceptable for reduced-current applications)
• Voltage - Output: 20V (primary specification; lower ratings acceptable for reduced-voltage applications)
• Frequency: 30MHz (operational parameter; variations acceptable if not specified as critical)

Substitute parts must maintain identical or superior electrical performance within the defined supply voltage window and package footprint. Parts meeting these criteria are classified as parametric equivalents or manufacturer-recommended alternatives.

Parameter Comparison

Engineering Selection Recommendations

TLC5917IPWR (Parametric Equivalent)

The TLC5917IPWR is a parametric equivalent to the TLC5916IPWR. Both devices are manufactured by Texas Instruments and maintain identical electrical specifications across all critical parameters: 8 output channels, 120mA per-channel current, 3V to 5.5V supply voltage, 20V maximum output voltage, and 16-TSSOP package footprint. Both devices carry Active product status and ROHS3 compliance certification. This substitute is suitable for direct replacement in applications where Texas Instruments sourcing is not restricted and identical performance characteristics are required.

MAX6978AUE+ (Manufacturer-Recommended Alternative)

The MAX6978AUE+ is a manufacturer-recommended alternative manufactured by Analog Devices Inc./Maxim Integrated. This device maintains compatibility across the critical substitution parameters: 8 output channels, 3V to 5.5V supply voltage, 16-TSSOP package footprint, and identical operating temperature range. However, this alternative operates with reduced per-channel current capability (55mA versus 120mA) and reduced maximum output voltage (5.5V versus 20V). The MAX6978AUE+ is suitable for applications where output current and voltage requirements do not exceed these reduced specifications. This device carries Active product status and ROHS3 compliance certification. The exposed pad variant provides enhanced thermal dissipation compared to standard TSSOP packaging.

Frequently Asked Questions (FAQ)

Q: Can the TLC5917IPWR be used as a direct replacement for the TLC5916IPWR?

A: Yes. The TLC5917IPWR maintains identical electrical and mechanical specifications to the TLC5916IPWR across all critical parameters. Both devices feature 8 output channels, 120mA per-channel current capability, 3V to 5.5V supply voltage range, 20V maximum output voltage, and 16-TSSOP package footprint. Direct substitution is permissible without circuit modification.

Q: What are the limitations of the MAX6978AUE+ as a substitute?

A: The MAX6978AUE+ operates with reduced per-channel current capability (55mA maximum versus 120mA) and reduced maximum output voltage (5.5V versus 20V). Applications requiring the full 120mA per-channel current or 20V output voltage capability cannot use this substitute. Designs must be evaluated to confirm that reduced current and voltage specifications remain within application requirements.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts are available in 16-TSSOP surface mount packages with identical 0.173" (4.40mm) width. The MAX6978AUE+ includes an exposed pad variant (16-TSSOP-EP) for improved thermal performance. PCB footprints are compatible across all three devices.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. The TLC5916IPWR, TLC5917IPWR, and MAX6978AUE+ all carry ROHS3 compliance certification, Moisture Sensitivity Level 1 (Unlimited), and operate across the -40°C to 125°C temperature range. All devices are classified as Active products with current manufacturing status.

Q: Which substitute should be selected for new designs?

A: Selection depends on application current and voltage requirements. For applications requiring 120mA per-channel current and 20V output voltage, either the TLC5916IPWR or TLC5917IPWR is required. For applications with reduced current requirements (55mA maximum) and lower output voltage (5.5V maximum), the MAX6978AUE+ is suitable and offers thermal advantages through its exposed pad design.