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ISO7330CDWR Digital Isolator Equivalent & Substitute Parts
Part Overview
The ISO7330CDWR is a general purpose digital isolator manufactured by Texas Instruments, featuring 3000Vrms isolation voltage and 3-channel unidirectional configuration. This capacitive coupling technology device operates across 3V to 5.5V supply range with 25Mbps data rate capability and 25kV/µs common mode transient immunity. The part is currently in active production status with ROHS3 compliance and AEC-Q100 automotive qualification available in variant forms. Substitute parts are identified based on matching electrical performance parameters, isolation specifications, and mechanical compatibility within the 16-SOIC package format.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Isolation Voltage | 3000Vrms |
| Number of Channels | 3 |
| Channel Configuration | Unidirectional (3 inputs / 0 outputs) |
| Data Rate | 25Mbps |
| Common Mode Transient Immunity | 25kV/µs |
| Supply Voltage Range | 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C |
| Package | 16-SOIC (0.295", 7.50mm Width) |
| Technology | Capacitive Coupling |
| Propagation Delay (Max) | 58ns (tpLH), 58ns (tpHL) |
Substitute Part Grouping Explanation
Substitute parts for the ISO7330CDWR are qualified based on identical electrical and mechanical parameters: 3000Vrms isolation voltage, 3-channel unidirectional topology, 25Mbps data rate, 25kV/µs CMTI, matching supply voltage range, identical package format (16-SOIC), and equivalent propagation delay specifications. The identified substitutes differ only in packaging format (Tape & Reel versus Cut Tape) and automotive qualification grade. All variants maintain the same base product number ISO7330 and share identical functional performance characteristics.
Parameter Comparison
| Parameter | ISO7330CDWR | ISO7330CQDWRQ1 | ISO7330FCQDWRQ1 |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Isolation Voltage | 3000Vrms | 3000Vrms | 3000Vrms |
| Number of Channels | 3 | 3 | 3 |
| Channel Type | Unidirectional | Unidirectional | Unidirectional |
| Data Rate | 25Mbps | 25Mbps | 25Mbps |
| CMTI (Min) | 25kV/µs | 25kV/µs | 25kV/µs |
| Supply Voltage | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) |
| Propagation Delay (Max) | 58ns / 58ns | 58ns / 58ns | 58ns / 58ns |
| Pulse Width Distortion (Max) | 4ns | 4ns | 4ns |
| Rise / Fall Time (Typ) | 3ns / 2ns | 3ns / 2ns | 3ns / 2ns |
| Packaging Format | Tape & Reel (TR) | Tape & Reel (TR) | Cut Tape (CT) & Digi-Reel® |
| Grade | Standard | Automotive | Automotive |
| Qualification | Not specified | AEC-Q100 | AEC-Q100 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 2 (1 Year) | 2 (1 Year) | 2 (1 Year) |
Engineering Selection Recommendations
ISO7330CQDWRQ1 serves as a direct functional equivalent with automotive-grade qualification (AEC-Q100) and maintains standard Tape & Reel packaging. This variant is suitable for applications requiring automotive compliance certification while preserving identical electrical performance and package footprint.
ISO7330FCQDWRQ1 provides equivalent electrical and thermal performance with automotive-grade qualification (AEC-Q100) but utilizes Cut Tape and Digi-Reel packaging format. Selection of this variant depends on procurement and assembly process requirements where cut tape format is preferred over standard tape and reel.
The ISO7330CDWR standard-grade variant remains appropriate for non-automotive applications where AEC-Q100 qualification is not required. All three parts maintain identical functional performance, isolation specifications, and mechanical compatibility within the 16-SOIC package envelope.
Frequently Asked Questions (FAQ)
Q: Are ISO7330CQDWRQ1 and ISO7330FCQDWRQ1 electrically identical to ISO7330CDWR?
A: Yes. All three parts share identical electrical specifications including 3000Vrms isolation voltage, 3-channel configuration, 25Mbps data rate, 25kV/µs CMTI, propagation delay, and supply voltage range. Differences exist only in packaging format and automotive qualification grade.
Q: What is the primary difference between the three part numbers?
A: ISO7330CDWR is standard-grade with Tape & Reel packaging. ISO7330CQDWRQ1 is automotive-grade (AEC-Q100) with Tape & Reel packaging. ISO7330FCQDWRQ1 is automotive-grade (AEC-Q100) with Cut Tape and Digi-Reel packaging. All maintain identical 16-SOIC package dimensions and electrical performance.
Q: Can ISO7330CQDWRQ1 or ISO7330FCQDWRQ1 be used as drop-in replacements for ISO7330CDWR?
A: Yes, both parts are pin-compatible and functionally equivalent. The 16-SOIC package footprint is identical across all variants. Selection depends on application requirements for automotive qualification and preferred packaging format for assembly processes.
Q: Does packaging format affect electrical performance?
A: No. Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel packaging formats do not affect electrical characteristics, isolation performance, or thermal behavior. Packaging selection is determined by manufacturing and procurement workflow requirements.
Q: Are all variants ROHS3 compliant?
A: Yes. ISO7330CDWR, ISO7330CQDWRQ1, and ISO7330FCQDWRQ1 are all ROHS3 compliant with MSL rating of 2 (1 Year).
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