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IXDN402SI Low-Side Gate Driver IC Equivalent & Substitute Parts
Part Overview
The IXDN402SI is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT and MOSFET devices in power management applications. This component operates as a non-inverting driver with independent dual-channel configuration in an 8-SOIC surface mount package. The IXDN402SI is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts must maintain compatibility across electrical specifications, package form factor, and functional characteristics to ensure direct replacement capability.
Substiute Parts
Key Parameters
| Parameter | IXDN402SI |
|---|---|
| Manufacturer | IXYS |
| Product Status | Obsolete |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Driven Configuration | Low-Side |
| Number of Drivers | 2 |
| Gate Type | IGBT, N-Channel, P-Channel MOSFET |
| Voltage - Supply | 4.5V ~ 35V |
| Current - Peak Output (Source, Sink) | 2A, 2A |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Input Type | Non-Inverting |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitute parts for the IXDN402SI are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:
Critical Matching Parameters:
- Driven configuration (low-side only)
- Channel type (independent dual-channel)
- Input type (non-inverting)
- Package form factor (8-SOIC surface mount)
- Supply voltage range (minimum 4.5V, maximum 35V or higher)
- Gate type compatibility (IGBT and MOSFET support)
- Operating temperature range (-55°C to 150°C or equivalent)
Acceptable Variation Parameters:
- Peak output current (2A minimum; higher ratings acceptable for drop-in replacement)
- Rise/fall time specifications (minor variations acceptable within gate driver performance envelope)
- Packaging options (tube, tape & reel, cut tape formats are interchangeable)
- Moisture sensitivity level (MSL 1 or MSL 3 acceptable)
Substitutes are divided into two categories: direct equivalents (IXDN602 and IXDN604 series from IXYS) and functional alternatives (ADP3654ARDZ-RL from Analog Devices and UCC27324D from Texas Instruments).
Parameter Comparison
| Part Number | Manufacturer | Status | Supply Voltage | Peak Output Current (Source/Sink) | Operating Temp (TJ/TA) | Package | Gate Type Support |
|---|---|---|---|---|---|---|---|
| IXDN402SI | IXYS | Obsolete | 4.5V ~ 35V | 2A / 2A | -55°C ~ 150°C (TJ) | 8-SOIC | IGBT, N-Channel, P-Channel MOSFET |
| IXDN602SI | Littelfuse | Active | 4.5V ~ 35V | 2A / 2A | -55°C ~ 150°C (TJ) | 8-SOIC-EP | IGBT, N-Channel, P-Channel MOSFET |
| IXDN602SIA | IXYS Integrated Circuits Division | Active | 4.5V ~ 35V | 2A / 2A | -55°C ~ 150°C (TJ) | 8-SOIC | IGBT, N-Channel, P-Channel MOSFET |
| IXDN602SIATR | IXYS Integrated Circuits Division | Active | 4.5V ~ 35V | 2A / 2A | -55°C ~ 150°C (TJ) | 8-SOIC | IGBT, N-Channel, P-Channel MOSFET |
| IXDN602SITR | IXYS Integrated Circuits Division | Active | 4.5V ~ 35V | 2A / 2A | -55°C ~ 150°C (TJ) | 8-SOIC-EP | IGBT, N-Channel, P-Channel MOSFET |
| IXDN604SI | IXYS Integrated Circuits Division | Active | 4.5V ~ 35V | 4A / 4A | -40°C ~ 125°C (TA) | 8-SOIC-EP | IGBT, N-Channel, P-Channel MOSFET |
| IXDN604SIA | IXYS Integrated Circuits Division | Active | 4.5V ~ 35V | 4A / 4A | -40°C ~ 125°C (TA) | 8-SOIC | IGBT, N-Channel, P-Channel MOSFET |
| IXDN604SIATR | IXYS Integrated Circuits Division | Active | 4.5V ~ 35V | 4A / 4A | -40°C ~ 125°C (TA) | 8-SOIC | IGBT, N-Channel, P-Channel MOSFET |
| IXDN604SITR | IXYS Integrated Circuits Division | Active | 4.5V ~ 35V | 4A / 4A | -40°C ~ 125°C (TA) | 8-SOIC-EP | IGBT, N-Channel, P-Channel MOSFET |
| ADP3654ARDZ-RL | Analog Devices Inc. | Active | 4.5V ~ 18V | 4A / 4A | -40°C ~ 125°C (TJ) | 8-SOIC-EP | N-Channel MOSFET |
| UCC27324D | Texas Instruments | Last Time Buy | 4.5V ~ 15V | 4A / 4A | -55°C ~ 150°C (TJ) | 8-SOIC | N-Channel, P-Channel MOSFET |
Engineering Selection Recommendations
Primary Substitutes (Direct Equivalents):
The IXDN602 series (IXDN602SI, IXDN602SIA, IXDN602SIATR, IXDN602SITR) from IXYS Integrated Circuits Division and Littelfuse are the preferred direct substitutes. These parts maintain identical electrical specifications to the IXDN402SI, including 2A peak output current, 4.5V to 35V supply voltage range, and -55°C to 150°C operating temperature. All IXDN602 variants are active products with RoHS3 compliance and MSL 1 rating. Selection among IXDN602 variants depends on packaging requirements: standard 8-SOIC for tube or cut tape formats, or 8-SOIC-EP for exposed pad variants.
Secondary Substitutes (Higher Current Rating):
The IXDN604 series (IXDN604SI, IXDN604SIA, IXDN604SIATR, IXDN604SITR) provides 4A peak output current capability while maintaining the same supply voltage range and gate type support. These parts are suitable for applications where higher drive current improves switching performance. Operating temperature range is reduced to -40°C to 125°C. All IXDN604 variants are active products with RoHS3 compliance and MSL 1 rating.
Alternative Substitutes (Different Manufacturers):
The ADP3654ARDZ-RL from Analog Devices provides 4A output current in an 8-SOIC-EP package with active product status and RoHS3 compliance. However, supply voltage is limited to 4.5V to 18V, and gate type support is restricted to N-Channel MOSFET only, excluding IGBT compatibility. This part is suitable only for applications within the reduced voltage range.
The UCC27324D from Texas Instruments is classified as Last Time Buy status with supply voltage limited to 4.5V to 15V. While it maintains the full -55°C to 150°C operating temperature range and 4A output current, the reduced voltage range and end-of-life status make it unsuitable for new designs.
Compliance and Certification:
All recommended substitutes (IXDN602 and IXDN604 series) carry RoHS3 compliance and REACH Unaffected status, matching the original part's regulatory requirements. MSL 1 rating ensures unlimited shelf life under controlled storage conditions.
Frequently Asked Questions (FAQ)
Q: Can IXDN604 series parts directly replace IXDN402SI in existing designs?
A: Yes. The IXDN604 series maintains full electrical compatibility with identical supply voltage range (4.5V to 35V), gate type support (IGBT and MOSFET), and package form factor (8-SOIC). The higher 4A output current rating is a superset capability and does not affect compatibility. Operating temperature range is reduced to -40°C to 125°C; verify this meets application requirements.
Q: What is the difference between 8-SOIC and 8-SOIC-EP packages?
A: The 8-SOIC-EP variant includes an exposed pad on the underside of the package for improved thermal dissipation. Both package types are mechanically and electrically compatible for PCB mounting. The exposed pad variant is recommended for high-frequency or high-current applications requiring enhanced heat transfer.
Q: Why is ADP3654ARDZ-RL not recommended as a primary substitute?
A: The ADP3654ARDZ-RL has a reduced supply voltage range (4.5V to 18V maximum) compared to the IXDN402SI (4.5V to 35V). Additionally, it supports only N-Channel MOSFET gate types and excludes IGBT compatibility. This part is suitable only for applications operating within the 18V maximum supply voltage constraint.
Q: Are packaging format differences (tube, tape & reel, cut tape) significant for substitution?
A: Packaging format differences relate to order quantity and handling convenience only. Electrically and mechanically, tube, tape & reel, and cut tape formats of the same part number are identical. Selection depends on production volume and assembly line requirements, not functional compatibility.
Q: What is the significance of MSL (Moisture Sensitivity Level) ratings?
A: MSL 1 indicates unlimited shelf life under controlled storage conditions (less than 30°C and 85% relative humidity). MSL 3 requires baking before reflow if storage exceeds 168 hours under the same conditions. All recommended IXDN602 and IXDN604 substitutes carry MSL 1 rating, matching the original part's storage requirements.
Q: Can UCC27324D be used as a substitute despite Last Time Buy status?
A: UCC27324D is not recommended for new designs due to Last Time Buy status, indicating end-of-life production. Additionally, supply voltage is limited to 4.5V to 15V, restricting use to applications below 15V. The IXDN602 and IXDN604 series are preferred for ongoing production and new designs.
Q: What are the key electrical parameters that determine substitution compatibility?
A: The critical parameters are supply voltage range (minimum 4.5V to 35V), peak output current (minimum 2A source and sink), operating temperature range (minimum -55°C to 150°C or application-specific requirement), gate type support (IGBT and MOSFET compatibility), and package form factor (8-SOIC surface mount). All recommended substitutes meet or exceed these criteria.
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