TCA6507ZXUR Equivalent & Substitute Parts

Part Overview

The TCA6507ZXUR is a 7-output linear LED driver IC with I2C/SMBus dimming control, designed for applications requiring independent LED brightness management across multiple channels. Operating from 1.65V to 3.6V supply voltage with 40mA per-channel output capability, this component integrates dimming functionality via I2C and SMBus protocols.

The TCA6507ZXUR carries an Obsolete product status. Identifying functionally equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems currently utilizing this component.

Substiute Parts

TCA6507ZXUR

Texas InstrumentsIn Stock: 16864TCA6507ZXUR Datasheet

Current PartRFQ

TCA6507RUER

Texas InstrumentsIn Stock: 35120TCA6507RUER Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TCA6507ZXUR is determined by strict equivalence across the following electrical and mechanical parameters:

• Functional equivalence: 7-output linear LED driver topology with identical I2C/SMBus dimming protocol support
• Electrical specifications: Matching supply voltage range (1.65V–3.6V), output voltage (5.5V), and per-channel current rating (40mA)
• Control interface: I2C and SMBus frequency compatibility (100kHz, 400kHz)
• Thermal performance: Identical operating temperature range (-40°C ~ 125°C)
• Regulatory compliance: ROHS3 compliance, MSL Level 1, and REACH unaffected status
• Base product family: Same TCA6507 base product number ensuring firmware and protocol compatibility

The TCA6507RUER qualifies as a direct substitute based on complete alignment across all specified parameters. The primary distinction is packaging format and product status transition.

Parameter Comparison

Engineering Selection Recommendations

The TCA6507RUER is the designated substitute for the obsolete TCA6507ZXUR. Both components maintain identical electrical specifications, control protocols, and thermal operating ranges, ensuring functional compatibility at the circuit level.

The transition from TCA6507ZXUR (Obsolete) to TCA6507RUER (Active) provides access to current manufacturing inventory and ongoing supply chain support. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production continuity.

The primary design consideration is package format transition from 12-UFBGA (2.5x2mm) to 12-XFQFN (2x1.4mm). This change requires PCB layout modification, including footprint redesign and trace routing adjustments. Electrical performance and firmware compatibility remain unaffected by this packaging change.

Frequently Asked Questions (FAQ)

Q: Can TCA6507RUER directly replace TCA6507ZXUR without firmware changes?

A: Yes. Both parts share identical I2C/SMBus protocol implementation, control register architecture, and dimming frequency support (100kHz, 400kHz). Firmware compatibility is maintained across the substitution.

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

A: The TCA6507ZXUR uses 12-UFBGA packaging (2.5x2mm), while the TCA6507RUER uses 12-XFQFN packaging (2x1.4mm). Electrical specifications and functional performance are identical. The packaging change requires PCB footprint redesign.

Q: Are there supply chain advantages to using TCA6507RUER?

A: Yes. The TCA6507RUER carries Active product status with 35,100 units in current inventory, compared to the Obsolete TCA6507ZXUR. This ensures reliable long-term availability and supports production scaling.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the TCA6507ZXUR and TCA6507RUER are ROHS3 compliant, carry MSL Level 1 (Unlimited), and are REACH unaffected. Regulatory requirements are satisfied by either component.

Q: What design considerations apply when transitioning from TCA6507ZXUR to TCA6507RUER?

A: PCB layout modification is required due to package format change. The 12-XFQFN footprint (2x1.4mm) differs from the 12-UFBGA footprint (2.5x2mm). Trace routing, via placement, and thermal management patterns must be updated accordingly. Electrical schematic connections remain unchanged.