A6274KLPTR-T-1 LED Driver IC Equivalent & Substitute Parts

Part Overview

The A6274KLPTR-T-1 is an automotive-grade LED driver IC manufactured by Allegro MicroSystems, designed for linear PWM dimming applications with 6 independent outputs. This device operates across a wide supply voltage range of 5V to 42V and delivers 60mA per output channel, making it suitable for automotive lighting and general illumination control systems. The part is currently in active production status with AEC-Q100 automotive qualification and ROHS3 compliance. Substitute parts are identified when packaging format differs while maintaining identical electrical and mechanical specifications, enabling procurement flexibility without redesign requirements.

Substiute Parts

A6274KLPTR-T-1

Allegro MicroSystemsIn Stock: 10985A6274KLPTR-T-1 Datasheet

Current PartRFQ

A6274KLPTR-T

Allegro MicroSystemsIn Stock: 22413A6274KLPTR-T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A6274KLPTR-T-1 is determined by strict equivalence across the following critical parameters:

• Manufacturer: Allegro MicroSystems (same manufacturer ensures design compatibility)
• Base Product Number: A6274 (identical silicon die and internal architecture)
• Number of Outputs: 6 channels
• Voltage Supply Range: 5V to 42V
• Current Output per Channel: 60mA
• Dimming Method: PWM
• Package Case: 20-TSSOP with Exposed Pad
• Operating Temperature: -40°C to 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q100
• RoHS Compliance: ROHS3

The only permitted variation is packaging format (Tape & Reel versus Cut Tape), which affects supply chain logistics and handling but does not alter electrical performance or board-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the A6274KLPTR-T-1 and A6274KLPTR-T are active production parts with identical electrical specifications and automotive-grade qualification. Selection between these parts is determined solely by packaging and supply chain requirements:

• A6274KLPTR-T-1 (Tape & Reel): Suitable for high-volume automated assembly operations where continuous reel feeding is standard practice.
• A6274KLPTR-T (Cut Tape): Suitable for lower-volume production, prototype development, or applications requiring manual component handling.

Both parts maintain AEC-Q100 qualification, ROHS3 compliance, and MSL 2 moisture sensitivity specifications. No electrical redesign or board layout modification is required when substituting between these variants. The choice is purely a procurement and manufacturing logistics decision.

Frequently Asked Questions (FAQ)

Q: Can A6274KLPTR-T be used as a direct replacement for A6274KLPTR-T-1 on the same PCB?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Cut Tape versus Tape & Reel). No schematic, layout, or assembly process changes are required.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on reels, optimized for automated pick-and-place assembly. Cut Tape (CT) packaging supplies the same components pre-cut from the tape, suitable for manual handling or lower-volume assembly. Both formats contain identical components with the same electrical performance.

Q: Are both parts automotive-qualified?

A: Yes. Both A6274KLPTR-T-1 and A6274KLPTR-T carry AEC-Q100 automotive qualification and are suitable for automotive lighting and control applications.

Q: Do these parts have the same moisture sensitivity requirements?

A: Yes. Both parts are classified as MSL 2 with a 1-year floor life, requiring identical storage and handling protocols.

Q: Can I mix Tape & Reel and Cut Tape parts in the same production run?

A: Yes. Since the components are electrically and mechanically identical, mixing packaging formats in the same assembly is permissible from an engineering standpoint. However, this may complicate inventory management and assembly line logistics.

Q: What is the base product number, and why is it important?

A: The base product number is A6274. This designates the core silicon die and internal architecture. Both substitute parts share this base number, confirming they are functionally equivalent variants differing only in packaging format.