ISO7763FDBQR Digital Isolator Equivalent & Substitute Parts

Part Overview

The ISO7763FDBQR is a general purpose digital isolator manufactured by Texas Instruments, designed for applications requiring galvanic isolation up to 3000Vrms across 6 channels. This capacitive coupling isolator operates at 100Mbps data rate with 85kV/µs common mode transient immunity, suitable for industrial and automotive isolation requirements. The device is in active product status with ROHS3 compliance and is available in 16-SSOP surface mount packaging.

Substitute parts are identified when they maintain identical electrical performance specifications, mechanical compatibility, and regulatory compliance across all critical parameters.

Substiute Parts

ISO7763FDBQR

Texas InstrumentsIn Stock: 2765ISO7763FDBQR Datasheet

Current PartRFQ

ISO7763DBQR

Texas InstrumentsIn Stock: 143246ISO7763DBQR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The ISO7763DBQR qualifies as a parametric equivalent to the ISO7763FDBQR based on strict alignment across all critical electrical and mechanical parameters. Substitution eligibility is determined by the following criteria:

• Identical isolation voltage rating (3000Vrms)
• Matching channel count and configuration (6 channels, 3/3 input/output)
• Equivalent data rate performance (100Mbps)
• Identical common mode transient immunity (85kV/µs)
• Matching propagation delay specifications (16ns)
• Identical supply voltage range (2.25V ~ 5.5V)
• Identical operating temperature range (-55°C ~ 125°C)
• Identical package and pinout (16-SSOP)
• Same technology platform (Capacitive Coupling)
• Matching regulatory compliance (ROHS3, REACH Unaffected)

Parameter Comparison

Engineering Selection Recommendations

Both the ISO7763FDBQR and ISO7763DBQR are active products from Texas Instruments with identical electrical specifications and mechanical compatibility. Selection between these parts may be based on inventory availability and packaging format (Cut Tape or Digi-Reel). The ISO7763DBQR currently maintains higher inventory levels (143,191 pieces) compared to the ISO7763FDBQR (2,700 pieces), which may influence procurement decisions for high-volume applications.

Both parts carry ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for industrial and consumer applications. Moisture sensitivity level is identical at MSL 2 (1 Year) for both variants.

Frequently Asked Questions (FAQ)

Q: Can ISO7763DBQR replace ISO7763FDBQR in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical performance, pinout, and package dimensions. Direct substitution is supported without circuit modification.

Q: Are there differences in isolation performance between these parts?

A: No. Both parts provide 3000Vrms isolation with identical 85kV/µs common mode transient immunity and 100Mbps data rate performance.

Q: What is the difference between the FDBQR and DBQR designations?

A: The designations indicate different packaging formats (Cut Tape vs. Digi-Reel) and potentially different manufacturing batches, but electrical and mechanical specifications remain identical.

Q: Are both parts suitable for automotive applications?

A: Both parts are active products with ROHS3 compliance. Suitability for specific automotive applications depends on additional qualification requirements beyond the provided specifications.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Identical 16-SSOP package dimensions (0.154", 3.90mm Width) and pinout enable direct PCB assembly interchange without layout modifications.

Q: What is the moisture sensitivity consideration for storage?

A: Both parts carry MSL 2 rating with 1-year floor life. Standard moisture control procedures for surface mount components apply to both variants.