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IXDF504SIA Low-Side Gate Driver IC Equivalent & Substitute Parts
Part Overview
The IXDF504SIA is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT and MOSFET devices in power management applications. This device features independent dual-channel configuration with inverting and non-inverting inputs, operating across a 4.5V to 30V supply range with 4A peak output current capability.
The IXDF504SIA is classified as obsolete. Identifying functionally equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this gate driver topology.
Substiute Parts
Key Parameters
| Parameter | IXDF504SIA |
|---|---|
| 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 ~ 30V |
| Current - Peak Output (Source, Sink) | 4A, 4A |
| Input Type | Inverting, Non-Inverting |
| Rise / Fall Time (Typ) | 9ns, 8ns |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Channel Type | Independent |
Substitute Part Grouping Explanation
Substitute parts for the IXDF504SIA are evaluated based on the following critical parameters that determine functional equivalence:
Primary Substitution Criteria:
- Package compatibility: 8-SOIC form factor (0.154", 3.90mm Width)
- Driven configuration: Low-side gate driver topology
- Channel configuration: Independent dual-channel operation
- Input type: Inverting and non-inverting capability
- Gate type support: IGBT and MOSFET compatibility
Secondary Compatibility Parameters:
- Supply voltage range (minimum 4.5V, maximum ≥30V preferred)
- Peak output current (source and sink capability ≥4A preferred)
- Rise/fall time performance (≤9ns rise, ≤8ns fall preferred)
- Operating temperature range (-55°C to 150°C preferred)
Substitute parts are grouped into two categories based on parameter alignment:
Category A - Full Parameter Alignment: Parts meeting or exceeding all primary and secondary criteria, suitable for direct replacement without design modification.
Category B - Partial Parameter Alignment: Parts meeting primary criteria but with reduced supply voltage range, output current, or operating temperature limits. These require design review to confirm application compatibility.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Supply Voltage | Peak Output Current (Source/Sink) | Rise/Fall Time (Typ) | Operating Temperature | Package | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| IXDF504SIA | IXYS | Obsolete | 4.5V ~ 30V | 4A / 4A | 9ns / 8ns | -55°C ~ 150°C (TJ) | 8-SOIC | Not specified |
| IXDF604SIA | IXYS Integrated Circuits Division | Active | 4.5V ~ 35V | 4A / 4A | 9ns / 8ns | -40°C ~ 125°C (TA) | 8-SOIC | ROHS3 Compliant |
| UCC27325DR | Texas Instruments | Active | 4.5V ~ 15V | 4A / 4A | 20ns / 15ns | -55°C ~ 150°C (TJ) | 8-SOIC | ROHS3 Compliant |
| UCC27325D | Texas Instruments | Last Time Buy | 4.5V ~ 15V | 4A / 4A | 20ns / 15ns | -55°C ~ 150°C (TJ) | 8-SOIC | ROHS3 Compliant |
| MIC4125YME | Microchip Technology | Active | 4.5V ~ 20V | 3A / 3A | 11ns / 11ns | -40°C ~ 125°C (TJ) | 8-SOIC-EP | ROHS3 Compliant |
| MIC4125YME-TR | Microchip Technology | Active | 4.5V ~ 20V | 3A / 3A | 11ns / 11ns | -40°C ~ 125°C (TJ) | 8-SOIC-EP | ROHS3 Compliant |
| MAX628ESA+ | Analog Devices Inc./Maxim Integrated | Active | 4.5V ~ 18V | 2A / 2A | 25ns / 20ns | -40°C ~ 85°C (TA) | 8-SOIC | ROHS3 Compliant |
| MAX628ESA+T | Analog Devices Inc./Maxim Integrated | Active | 4.5V ~ 18V | 2A / 2A | 25ns / 20ns | -40°C ~ 85°C (TA) | 8-SOIC | ROHS3 Compliant |
| MAX628CSA+ | Analog Devices Inc./Maxim Integrated | Active | 4.5V ~ 18V | 2A / 2A | 25ns / 20ns | 0°C ~ 70°C (TA) | 8-SOIC | ROHS3 Compliant |
| MAX628CSA+T | Analog Devices Inc./Maxim Integrated | Active | 4.5V ~ 18V | 2A / 2A | 25ns / 20ns | 0°C ~ 70°C (TA) | 8-SOIC | ROHS3 Compliant |
| TSC428CBA+ | Analog Devices Inc./Maxim Integrated | Active | 4.5V ~ 18V | 1.5A / 1.5A | 25ns / 25ns | 0°C ~ 70°C (TA) | 8-SOIC | ROHS3 Compliant |
Engineering Selection Recommendations
Recommended Primary Substitute: IXDF604SIA
The IXDF604SIA is the optimal substitute for the obsolete IXDF504SIA. Both devices are manufactured by IXYS and share identical electrical performance characteristics: 4A peak output current, 9ns/8ns rise/fall times, and independent dual-channel configuration. The IXDF604SIA offers enhanced supply voltage capability (4.5V ~ 35V versus 4.5V ~ 30V) and maintains ROHS3 compliance. Product status is active with confirmed inventory availability. The primary design consideration is the reduced operating temperature range (TA: -40°C ~ 125°C versus TJ: -55°C ~ 150°C), which requires verification against application thermal requirements.
Alternative Substitute: UCC27325DR / UCC27325D
The UCC27325DR (active status) and UCC27325D (last time buy status) from Texas Instruments provide equivalent 4A output current and maintain the full -55°C ~ 150°C operating temperature range of the original device. Both are ROHS3 compliant. The trade-off is reduced supply voltage range (4.5V ~ 15V), which requires confirmation that application supply voltages do not exceed 15V. Rise/fall times are degraded (20ns/15ns) compared to the IXDF504SIA specification.
Secondary Alternatives: MIC4125YME / MIC4125YME-TR
Microchip Technology's MIC4125 series (active status, ROHS3 compliant) offers -40°C ~ 125°C operating temperature range and 8-SOIC-EP package with exposed pad for enhanced thermal performance. Output current is reduced to 3A, and supply voltage is limited to 4.5V ~ 20V. These devices are suitable for applications where thermal management is critical and output current requirements do not exceed 3A.
Not Recommended for Direct Substitution: MAX628 Series, TSC428CBA+
The MAX628 series (MAX628ESA+, MAX628ESA+T, MAX628CSA+, MAX628CSA+T) and TSC428CBA+ exhibit significant parameter degradation: reduced peak output current (2A and 1.5A respectively), limited supply voltage range (4.5V ~ 18V), and degraded rise/fall times (20-25ns). These devices are suitable only for applications with relaxed performance requirements and lower output current demands.
Frequently Asked Questions (FAQ)
Q: Can IXDF604SIA directly replace IXDF504SIA without PCB modifications?
A: Yes, the IXDF604SIA is pin-compatible and functionally equivalent. Both devices use the 8-SOIC package with identical pinout. No PCB layout changes are required. However, verify that your application's maximum supply voltage does not exceed 35V and that the reduced operating temperature range (-40°C ~ 125°C TA) is acceptable for your thermal environment.
Q: What is the key difference between IXDF504SIA and UCC27325DR?
A: Both devices provide 4A output current and support the full -55°C ~ 150°C temperature range. The primary difference is supply voltage: IXDF504SIA operates to 30V while UCC27325DR is limited to 15V. Additionally, UCC27325DR has slower rise/fall times (20ns/15ns versus 9ns/8ns). Select UCC27325DR only if your application supply voltage does not exceed 15V and switching speed requirements are less stringent.
Q: Why do MAX628 devices show lower output current ratings?
A: The MAX628 series is designed for lower-power gate drive applications. Peak output current is rated at 2A (source and sink), compared to 4A for IXDF504SIA. This limits the maximum gate charge that can be delivered per unit time, affecting switching frequency capability and gate drive efficiency in high-current MOSFET or IGBT applications.
Q: Are all substitute parts ROHS3 compliant?
A: All active and last-time-buy substitute parts listed are ROHS3 compliant. The original IXDF504SIA does not specify RoHS status. If RoHS compliance is a design requirement, select from active-status parts with confirmed ROHS3 certification.
Q: What packaging options are available for substitutes?
A: Most substitutes are available in standard 8-SOIC packaging. MIC4125YME and MIC4125YME-TR feature 8-SOIC-EP (exposed pad) variant, which provides improved thermal performance through the exposed pad connection to ground. Packaging variants (tube, tape & reel, cut tape) are available for most parts to accommodate different procurement and assembly workflows.
Q: Can I use MIC4125YME if my application requires 4A output current?
A: No. MIC4125YME is rated for 3A peak output current (source and sink). If your gate drive circuit requires 4A capability, select IXDF604SIA or UCC27325DR/UCC27325D instead.
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