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SI8285CD-IS Equivalent & Substitute Parts
Part Overview
The SI8285CD-IS is a digital isolated gate driver manufactured by Skyworks Solutions Inc., designed for high-voltage switching applications requiring galvanic isolation. This 1-channel capacitive coupling gate driver operates at 5000Vrms isolation voltage and delivers 4A peak output current in a 16-SOIC surface mount package. The device is currently in active production status with 1030 units in stock. Alternative models may be required when application specifications permit lower isolation voltage ratings or when inventory constraints necessitate component substitution.
Substiute Parts
Key Parameters
| Parameter | SI8285CD-IS |
|---|---|
| Manufacturer | Skyworks Solutions Inc. |
| Package Type | 16-SOIC (0.295", 7.50mm Width) |
| Isolation Voltage | 5000Vrms |
| Number of Channels | 1 |
| Peak Output Current | 4A |
| Output Supply Voltage Range | 13.2V ~ 30V |
| Operating Temperature Range | -40°C ~ 125°C |
| Common Mode Transient Immunity | 125kV/µs (Min) |
| Propagation Delay (tpLH / tpHL) | 50ns / 50ns (Max) |
| Product Status | Active |
Substitute Part Grouping Explanation
The SI8285CC-IS qualifies as a direct substitute based on the following matching parameters:
- Identical manufacturer (Skyworks Solutions Inc.)
- Identical package type (16-SOIC, 0.295" × 7.50mm)
- Identical channel configuration (1 channel)
- Identical peak output current (4A)
- Identical output supply voltage range (13.2V ~ 30V)
- Identical operating temperature range (-40°C ~ 125°C)
- Identical common mode transient immunity (125kV/µs)
- Identical propagation delay specifications (50ns / 50ns)
- Identical pulse width distortion (5ns Max)
- Identical rise/fall time characteristics (5.5ns / 8.5ns Typ)
- Identical output current ratings (2A high, 4.1A low)
- Identical mounting type (Surface Mount)
- Identical technology (Capacitive Coupling)
The primary difference is the isolation voltage rating: SI8285CC-IS operates at 3750Vrms compared to the 5000Vrms of the SI8285CD-IS. This lower isolation rating makes the SI8285CC-IS suitable only for applications where the maximum required isolation voltage does not exceed 3750Vrms.
Parameter Comparison
| Parameter | SI8285CD-IS | SI8285CC-IS | Compatibility |
|---|---|---|---|
| Manufacturer | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Match |
| Package / Case | 16-SOIC (0.295", 7.50mm) | 16-SOIC (0.295", 7.50mm) | Match |
| Number of Channels | 1 | 1 | Match |
| Isolation Voltage | 5000Vrms | 3750Vrms | Difference |
| Common Mode Transient Immunity (Min) | 125kV/µs | 125kV/µs | Match |
| Propagation Delay tpLH / tpHL (Max) | 50ns / 50ns | 50ns / 50ns | Match |
| Pulse Width Distortion (Max) | 5ns | 5ns | Match |
| Rise / Fall Time (Typ) | 5.5ns / 8.5ns | 5.5ns / 8.5ns | Match |
| Current - Output High, Low | 2A, 4.1A | 2A, 4.1A | Match |
| Current - Peak Output | 4A | 4A | Match |
| Voltage - Output Supply | 13.2V ~ 30V | 13.2V ~ 30V | Match |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | Match |
| Mounting Type | Surface Mount | Surface Mount | Match |
| Product Status | Active | Active | Match |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | Match |
| ECCN | EAR99 | EAR99 | Match |
| HTSUS | 8542.39.0001 | 8542.39.0001 | Match |
Engineering Selection Recommendations
Both devices maintain active production status and carry identical regulatory approvals (CQC, CSA, VDE). The SI8285CC-IS includes additional RoHS3 compliance and REACH unaffected status documentation.
Selection between SI8285CD-IS and SI8285CC-IS depends solely on isolation voltage requirements:
- Use SI8285CD-IS when application isolation specifications require 5000Vrms or higher
- Use SI8285CC-IS when application isolation specifications do not exceed 3750Vrms
Both devices are pin-compatible and functionally equivalent within their respective isolation voltage ratings. No circuit modifications are required when substituting between these parts, provided the lower isolation voltage of the SI8285CC-IS meets application requirements.
Frequently Asked Questions (FAQ)
Q: Can SI8285CC-IS replace SI8285CD-IS in all applications?
A: No. The SI8285CC-IS operates at 3750Vrms isolation voltage, which is lower than the SI8285CD-IS rating of 5000Vrms. Substitution is valid only when the application isolation voltage requirement does not exceed 3750Vrms.
Q: Are these devices pin-compatible?
A: Yes. Both devices use the 16-SOIC package with identical pinout and electrical characteristics except for isolation voltage rating.
Q: What is the isolation voltage difference between these parts?
A: SI8285CD-IS provides 5000Vrms isolation, while SI8285CC-IS provides 3750Vrms isolation. This represents a 1250Vrms difference in maximum isolation capability.
Q: Do these devices require different PCB layouts?
A: No. Both devices use identical package dimensions (16-SOIC, 0.295" × 7.50mm) and mounting type (Surface Mount). PCB layouts are interchangeable.
Q: Are there compliance differences between these parts?
A: Both devices carry CQC, CSA, VDE, and EAR99 approvals. SI8285CC-IS includes additional RoHS3 compliance and REACH unaffected documentation.
Q: What is the common mode transient immunity for both devices?
A: Both SI8285CD-IS and SI8285CC-IS provide 125kV/µs minimum common mode transient immunity.
Q: Are the propagation delay specifications identical?
A: Yes. Both devices specify 50ns maximum propagation delay for both tpLH and tpHL transitions.
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