AUIPS1042G Equivalent & Substitute Parts

Part Overview

The AUIPS1042G is an N-Channel power switch driver manufactured by Infineon Technologies, designed for general-purpose switching applications in automotive-grade systems. This component operates as a 1:1 low-side switch with a maximum output current of 1.5A and an on-resistance of 80mOhm typical. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

AUIPS1042G

Infineon TechnologiesIn Stock: 1150AUIPS1042G Datasheet

Current PartRFQ

BTS3410GXUMA1

Infineon TechnologiesIn Stock: 1649BTS3410GXUMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AUIPS1042G is determined by the following critical parameters:

• Output Configuration: Low-side N-Channel switch with 1:1 input-to-output ratio
• Load Voltage Range: 6V ~ 28V maximum operating range
• Output Current Capability: Minimum 1.5A continuous current
• Package Compatibility: 8-SOIC form factor with 0.154" (3.90mm) width
• Thermal Performance: Operating temperature range of -40°C to 150°C (TJ)
• Automotive Compliance: AEC-Q100 qualification for automotive applications
• Interface Type: Non-inverting on/off control
• Fault Protection: Current limiting and over-temperature protection

The BTS3410GXUMA1 meets these substitution criteria as a functionally equivalent alternative from the same manufacturer, maintaining electrical and mechanical compatibility within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

The BTS3410GXUMA1 is the manufacturer-recommended substitute for the obsolete AUIPS1042G. Selection of this alternative is based on the following engineering factors:

Compliance and Availability: The BTS3410GXUMA1 maintains active product status with Infineon Technologies, ensuring long-term availability and supply chain continuity. Both devices carry AEC-Q100 automotive qualification and REACH compliance, meeting regulatory requirements for automotive applications.

Electrical Compatibility: The substitute maintains identical output configuration (low-side N-Channel 1:1 switch), interface type (non-inverting on/off control), and thermal operating range (-40°C to 150°C TJ). Load voltage capability is enhanced to 42V maximum, providing margin above the original 28V specification.

Performance Trade-offs: The BTS3410GXUMA1 operates at reduced maximum output current (1.3A versus 1.5A) and higher on-resistance (150mOhm versus 80mOhm). These parameters must be evaluated against application current requirements and thermal dissipation constraints. The substitute includes additional over-voltage fault protection not present in the original device.

Package Compatibility: Both devices use identical 8-SOIC packaging (0.154" width, 3.90mm), enabling direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the BTS3410GXUMA1 directly replace the AUIPS1042G in existing designs?

A: Direct replacement is possible from a package and interface perspective. However, the reduced maximum output current (1.3A versus 1.5A) and increased on-resistance (150mOhm versus 80mOhm) must be evaluated against application requirements. If the original design operates near the 1.5A limit or has thermal constraints, performance impact must be assessed.

Q: What are the key differences between these two parts?

A: The primary differences are output current capability (1.5A versus 1.3A), on-resistance (80mOhm versus 150mOhm), and maximum load voltage (28V versus 42V). The BTS3410GXUMA1 includes additional over-voltage protection. Both maintain identical package, interface, and thermal specifications.

Q: Are there any packaging considerations for substitution?

A: Both devices use 8-SOIC packaging with identical dimensions (0.154" width, 3.90mm). No PCB layout modifications are required. The BTS3410GXUMA1 is available in Cut Tape and Digi-Reel packaging options.

Q: Does the BTS3410GXUMA1 meet automotive qualification requirements?

A: Yes. The BTS3410GXUMA1 is AEC-Q100 qualified and REACH compliant, meeting automotive-grade requirements equivalent to the original AUIPS1042G.

Q: What is the impact of higher on-resistance on thermal performance?

A: Higher on-resistance (150mOhm versus 80mOhm) results in increased power dissipation at equivalent current levels. Thermal analysis is required to confirm adequate heat dissipation in the target application, particularly if operating near the 1.3A maximum current rating.