M81711FP Power Switch/Driver IC - Equivalent & Substitute Parts

Part Overview

The M81711FP is a Power Switch/Driver IC manufactured by Powerex Inc., designed for general-purpose power management applications with a 1:1 input-to-output ratio and 2-output configuration. This component operates across a load voltage range of 4.5V to 17V and features an 8-SOP surface mount package with typical on-resistance of 9Ohm. The part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. Suitable alternatives must maintain compatibility with the specified electrical parameters and package footprint while meeting current availability and compliance requirements.

Substiute Parts

M81711FP

Powerex Inc.In Stock: 1541M81711FP Datasheet

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EL7212CSZ

Renesas Electronics CorporationIn Stock: 8165EL7212CSZ Datasheet

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EL7212CSZ-T7

Renesas Electronics CorporationIn Stock: 2212EL7212CSZ-T7 Datasheet

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ICL7667CBAZA

Renesas Electronics CorporationIn Stock: 2362ICL7667CBAZA Datasheet

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ICL7667CBAZA-T

Renesas Electronics CorporationIn Stock: 2288ICL7667CBAZA-T Datasheet

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ISL89411IBZ

Renesas Electronics CorporationIn Stock: 1753ISL89411IBZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M81711FP is determined by the following critical parameters: inverting input type, 2-driver configuration, 8-SOIC package compatibility, surface mount technology, and operating temperature range. The load voltage specification (4.5V ~ 17V) and on-resistance characteristics establish the baseline electrical requirements. Substitute parts must maintain these core functional attributes while supporting the same package footprint and thermal operating range. The following parts meet these substitution criteria based on provided specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are manufactured by Renesas Electronics Corporation and maintain active product status with current availability. The EL7212CSZ, EL7212CSZ-T7, and ISL89411IBZ variants provide the closest electrical alignment with the M81711FP, supporting the full -40°C to 125°C operating temperature range and inverting input configuration. These three options are preferred for applications requiring extended temperature operation and maximum thermal stability.

The ICL7667CBAZA and ICL7667CBAZA-T parts operate within a reduced temperature range (0°C to 70°C) and are suitable for applications within this thermal envelope. All substitute parts comply with ROHS3 standards and are available in 8-SOIC surface mount packages, ensuring PCB layout compatibility with minor footprint adjustments due to package width variations (3.90mm versus 4.40mm).

Frequently Asked Questions (FAQ)

Q: Can I directly replace M81711FP with any of these substitute parts without PCB modification?

A: The substitute parts use 8-SOIC packages with 3.90mm width compared to the M81711FP's 4.40mm width. While pin pitch remains compatible, PCB footprint adjustment may be required. Verify your PCB layout accommodates the narrower package width before implementation.

Q: Which substitute offers the best thermal performance match?

A: The EL7212CSZ, EL7212CSZ-T7, and ISL89411IBZ all support the full -40°C to 125°C operating temperature range matching the M81711FP. The ICL7667CBAZA variants are limited to 0°C to 70°C operation and should only be selected for applications within this narrower range.

Q: Are there packaging format differences I should consider?

A: EL7212CSZ is supplied in Tube packaging, EL7212CSZ-T7 in Cut Tape & Digi-Reel format, ICL7667CBAZA in Tube, ICL7667CBAZA-T in Cut Tape & Digi-Reel, and ISL89411IBZ in Bulk. Select the packaging format that matches your procurement and assembly requirements.

Q: What is the voltage supply difference between M81711FP and the substitutes?

A: The M81711FP operates at 4.5V to 17V. The EL7212CSZ, EL7212CSZ-T7, and ICL7667 variants operate at 4.5V to 15V. The ISL89411IBZ extends to 4.5V to 18V. Verify your application's supply voltage falls within the selected substitute's specification.

Q: Do all substitutes maintain the same inverting input configuration?

A: Yes, all listed substitute parts maintain inverting input type and 2-driver configuration, ensuring functional compatibility with the M81711FP in inverting logic applications.