Infineon IPS021 Power Switch Driver - Equivalent & Substitute Parts

Part Overview

The Infineon IPS021 (MFR PN: 98-0282) is a Power Switch/Driver IC featuring 1:1 N-Channel configuration with 1.4A maximum output current in SOT-223 packaging. This component is classified as obsolete, necessitating identification of functionally compatible alternatives for new designs and production continuity. The part operates across -40°C to 150°C junction temperature range with integrated current limiting and over-temperature protection.

Substiute Parts

98-0282

Infineon TechnologiesIn Stock: 102698-0282 Datasheet

Current PartRFQ

BTS3134NHUMA1

Infineon TechnologiesIn Stock: 5409BTS3134NHUMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IPS021 is determined by the following critical parameters:

• Output Configuration: Low Side N-Channel driver with 1:1 input-to-output ratio
• Package Compatibility: SOT-223 surface mount form factor (TO-261-4, TO-261AA)
• Electrical Performance: Maximum load voltage, output current capability, and on-resistance characteristics
• Interface Type: Non-inverting on/off control
• Fault Protection: Current limiting and over-temperature protection requirements
• Operating Temperature Range: -40°C to 150°C junction temperature

The BTS3134NHUMA1 qualifies as a direct substitute based on matching output configuration, package type, interface characteristics, and operating temperature range. This part demonstrates enhanced electrical performance specifications while maintaining functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The BTS3134NHUMA1 is the manufacturer-recommended substitute for the obsolete IPS021. Selection rationale is based on the following factors:

Product Status: The IPS021 is obsolete with no continued manufacturing. The BTS3134NHUMA1 maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance Status: The BTS3134NHUMA1 achieves ROHS3 compliance, addressing regulatory requirements for new designs. The original IPS021 is RoHS non-compliant, making the substitute necessary for applications subject to RoHS directives.

Electrical Performance: The substitute part exceeds the original specifications across all critical parameters. Maximum load voltage increases from 35V to 42V, output current capability increases from 1.4A to 3A, and on-resistance decreases from 130mOhm to 35mOhm. These improvements provide enhanced performance margins without requiring circuit redesign.

Functional Compatibility: Both parts share identical output configuration (Low Side N-Channel 1:1), interface type (Non-Inverting), operating temperature range (-40°C to 150°C), and package form factor (SOT-223). Pin-to-pin compatibility is maintained.

Enhanced Protection: The BTS3134NHUMA1 includes over-voltage protection in addition to current limiting and over-temperature protection, providing superior fault management.

Frequently Asked Questions (FAQ)

Q: Can the BTS3134NHUMA1 directly replace the IPS021 without circuit modifications?

A: Yes. Both parts feature identical output configuration, interface type, operating temperature range, and SOT-223 package. The substitute part's enhanced electrical ratings (higher voltage and current capability, lower on-resistance) are backward-compatible with circuits designed for the original IPS021.

Q: What are the key differences between these parts?

A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. ROHS3 compliant), and electrical performance. The BTS3134NHUMA1 provides higher maximum load voltage (42V vs. 35V), higher output current (3A vs. 1.4A), lower on-resistance (35mOhm vs. 130mOhm), and additional over-voltage protection.

Q: Are there packaging differences between the IPS021 and BTS3134NHUMA1?

A: Both parts use SOT-223 surface mount packaging (TO-261-4, TO-261AA case). The BTS3134NHUMA1 is supplied in Tape & Reel format, while the original IPS021 packaging format is not specified. Pin configuration and footprint are identical.

Q: What is the moisture sensitivity level difference?

A: The IPS021 has MSL 1 (Unlimited), while the BTS3134NHUMA1 has MSL 3 (168 Hours). This indicates the substitute part requires standard moisture control during storage and handling, consistent with industry practice for active production components.

Q: Is the BTS3134NHUMA1 suitable for new design applications?

A: Yes. The BTS3134NHUMA1 is the manufacturer-recommended substitute with active production status and improved compliance certifications. It is the appropriate choice for new designs requiring a low-side N-channel power switch driver in SOT-223 packaging.