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IXDI402SIA Low-Side Gate Driver IC Equivalent & Substitute Parts
Part Overview
The IXDI402SIA is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT and MOSFET devices in power management applications. This device operates with a supply voltage range of 4.5V to 35V and features dual independent channels with 2A peak output current capability. The IXDI402SIA is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | IXDI402SIA |
| Manufacturer | IXYS |
| Category | Power Management (PMIC) |
| Description | IC GATE DRVR LOW-SIDE 8SOIC |
| Driven Configuration | Low-Side |
| Number of Drivers | 2 |
| Gate Type | IGBT, N-Channel, P-Channel MOSFET |
| Voltage - Supply | 4.5V ~ 35V |
| Logic Voltage - VIL, VIH | 0.8V, 3V |
| Current - Peak Output (Source, Sink) | 2A, 2A |
| Input Type | Inverting |
| Rise / Fall Time (Typ) | 8ns, 8ns |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the IXDI402SIA is determined by the following critical parameters:
- Package Compatibility: 8-SOIC form factor (0.154", 3.90mm Width) for direct PCB layout compatibility
- Driven Configuration: Low-side gate driver topology
- Channel Architecture: Independent dual-channel configuration
- Gate Type Support: IGBT and MOSFET (N-Channel, P-Channel) compatibility
- Supply Voltage Range: 4.5V to 35V operational window
- Logic Voltage Levels: VIL 0.8V, VIH 3V input thresholds
- Input Type: Inverting logic configuration
- Peak Output Current: Minimum 2A source and sink capability
- Operating Temperature Range: -55°C to 150°C junction temperature
Substitute parts are grouped into two categories:
Category A - Direct Functional Equivalents (IXYS IXDI602 Series): Parts maintaining identical electrical specifications, supply voltage range (4.5V–35V), output current (2A), and temperature range (-55°C to 150°C). These include IXDI602SIA, IXDI602SIATR, IXDI602SI, and IXDI602SITR. These parts are active products with RoHS3 compliance.
Category B - Enhanced Performance Alternatives (IXYS IXDI604 Series & Infineon IR4426 Series): Parts with higher peak output current (4A for IXDI604 series; 2.3A/3.3A for IR4426 series) or modified temperature ranges. The IR4426SPBF and IR4426STRPBF operate within a narrower supply voltage range (6V–20V) and reduced temperature range (-40°C to 150°C), requiring design verification for compatibility.
Parameter Comparison
| Parameter | IXDI402SIA | IXDI602SIA | IXDI602SIATR | IXDI602SI | IXDI604SIA | IXDI604SIATR | IR4426SPBF | IR4426STRPBF |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | IXYS | IXYS | IXYS | IXYS | IXYS | IXYS | Infineon | Infineon |
| Driven Configuration | Low-Side | Low-Side | Low-Side | Low-Side | Low-Side | Low-Side | Low-Side | Low-Side |
| Number of Drivers | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Gate Type | IGBT, N-Channel, P-Channel MOSFET | IGBT, N-Channel, P-Channel MOSFET | IGBT, N-Channel, P-Channel MOSFET | IGBT, N-Channel, P-Channel MOSFET | IGBT, N-Channel, P-Channel MOSFET | IGBT, N-Channel, P-Channel MOSFET | IGBT, N-Channel MOSFET | IGBT, N-Channel MOSFET |
| Voltage - Supply | 4.5V ~ 35V | 4.5V ~ 35V | 4.5V ~ 35V | 4.5V ~ 35V | 4.5V ~ 35V | 4.5V ~ 35V | 6V ~ 20V | 6V ~ 20V |
| Logic Voltage - VIL, VIH | 0.8V, 3V | 0.8V, 3V | 0.8V, 3V | 0.8V, 3V | 0.8V, 3V | 0.8V, 3V | 0.8V, 2.7V | 0.8V, 2.7V |
| Current - Peak Output (Source, Sink) | 2A, 2A | 2A, 2A | 2A, 2A | 2A, 2A | 4A, 4A | 4A, 4A | 2.3A, 3.3A | 2.3A, 3.3A |
| Input Type | Inverting | Inverting | Inverting | Inverting | Inverting | Inverting | Inverting | Inverting |
| Rise / Fall Time (Typ) | 8ns, 8ns | 7.5ns, 6.5ns | 7.5ns, 6.5ns | 7.5ns, 6.5ns | 9ns, 8ns | 9ns, 8ns | 15ns, 10ns | 15ns, 10ns |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC-EP | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Obsolete | Active |
| RoHS Status | Not Specified | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 2 (1 Year) | 2 (1 Year) |
Engineering Selection Recommendations
Primary Substitutes (IXYS IXDI602 Series)
The IXDI602SIA, IXDI602SIATR, and IXDI602SI are the recommended direct substitutes for the IXDI402SIA. These parts maintain identical electrical specifications across supply voltage (4.5V–35V), logic voltage thresholds, peak output current (2A), and operating temperature range (-55°C to 150°C). All IXDI602 variants are active products with RoHS3 compliance, ensuring long-term availability and regulatory compliance. The IXDI602SI features an exposed pad (8-SOIC-EP) package variant for improved thermal performance, while IXDI602SIA and IXDI602SIATR are standard 8-SOIC packages. Packaging options include Tube (IXDI602SIA, IXDI602SI) and Cut Tape with Digi-Reel (IXDI602SIATR).
Secondary Substitutes (IXYS IXDI604 Series)
The IXDI604SIA and IXDI604SIATR provide enhanced performance with 4A peak output current capability, double that of the IXDI402SIA. These parts maintain the same supply voltage range (4.5V–35V) and logic voltage thresholds but operate within a reduced temperature range (-40°C to 125°C). The IXDI604 series is suitable for applications requiring higher gate drive current while maintaining the same package footprint. Both variants are active products with RoHS3 compliance.
Alternative Substitutes (Infineon IR4426 Series)
The IR4426SPBF and IR4426STRPBF are Infineon alternatives with comparable functionality but narrower operating specifications. These parts operate within a restricted supply voltage range (6V–20V) and reduced temperature range (-40°C to 150°C). The IR4426 series features asymmetric output current (2.3A source, 3.3A sink) and slower rise/fall times (15ns/10ns) compared to the IXDI402SIA (8ns/8ns). IR4426STRPBF is an active product, while IR4426SPBF is obsolete. Both are RoHS3 compliant with MSL 2 (1 Year) moisture sensitivity. Selection of IR4426 variants requires design verification to confirm compatibility with the narrower supply voltage and temperature operating windows.
Frequently Asked Questions (FAQ)
Q: Can IXDI602SIA directly replace IXDI402SIA without PCB modifications?
A: Yes. Both parts use the 8-SOIC package with identical pinout and electrical specifications. No PCB layout changes are required for direct substitution.
Q: What is the difference between IXDI602SIA and IXDI602SI?
A: IXDI602SI features an exposed pad (8-SOIC-EP) package for enhanced thermal dissipation, while IXDI602SIA uses a standard 8-SOIC package. Electrical specifications are identical. PCB layout must accommodate the exposed pad if using IXDI602SI.
Q: Why does IR4426STRPBF have a narrower supply voltage range (6V–20V) compared to IXDI402SIA (4.5V–35V)?
A: The IR4426 series is designed for a different application envelope with lower maximum supply voltage. Applications requiring operation below 6V or above 20V supply voltage cannot use IR4426 variants and must select IXYS IXDI602 or IXDI604 series.
Q: Can IXDI604SIA be used in place of IXDI402SIA?
A: IXDI604SIA is functionally compatible with identical supply voltage and logic voltage specifications. However, the operating temperature range is reduced (-40°C to 125°C versus -55°C to 150°C). Applications requiring operation below -40°C or above 125°C must use IXDI602 series. The higher output current (4A) of IXDI604 does not negatively impact IXDI402 designs.
Q: What is the significance of RoHS3 compliance for these gate driver ICs?
A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. All active substitute parts (IXDI602, IXDI604 series, and IR4426STRPBF) are RoHS3 compliant, ensuring regulatory compliance for new designs and production.
Q: How do packaging options (Tube, Cut Tape, Tape & Reel) affect part selection?
A: Packaging affects supply chain logistics and handling. Tube packaging is suitable for small-quantity orders and manual assembly. Cut Tape with Digi-Reel and Tape & Reel packaging are optimized for automated pick-and-place assembly. Electrical specifications remain identical across all packaging variants of the same part number base.
Q: Why is the IXDI402SIA classified as obsolete?
A: Obsolete status indicates the manufacturer has discontinued production. Active alternatives (IXDI602 and IXDI604 series) provide equivalent or enhanced functionality with ongoing manufacturer support and availability.
Q: What is Moisture Sensitivity Level (MSL) and why does it matter?
A: MSL indicates the maximum time a component can be stored in ambient conditions before requiring baking prior to reflow soldering. IXDI402SIA and IXDI602/IXDI604 series have MSL 1 (Unlimited), allowing indefinite storage without baking. IR4426 variants have MSL 2 (1 Year), requiring baking if stored beyond one year.
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