FAN3228TMPX Equivalent & Substitute Parts

Part Overview

The FAN3228TMPX is a low-side gate driver IC manufactured by onsemi, designed for driving N-channel MOSFETs in power management applications. This device features independent dual-channel configuration with both inverting and non-inverting input types, operating across a 4.5V to 18V supply voltage range. The FAN3228TMPX is currently classified as obsolete, making identification of functionally equivalent substitute components essential for ongoing system support and new design implementations.

Substiute Parts

FAN3228TMPX

onsemiIn Stock: 1133FAN3228TMPX Datasheet

Current PartRFQ

FAN3227TMX

onsemiIn Stock: 43024FAN3227TMX Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FAN3228TMPX is determined by the following critical parameters:

• Driven Configuration: Must be Low-Side
• Number of Drivers: Must be 2 independent channels
• Gate Type: Must be N-Channel MOSFET
• Voltage - Supply: Must support 4.5V ~ 18V range
• Logic Voltage Thresholds: Must match VIL 0.8V and VIH 2V
• Current - Peak Output: Must provide minimum 3A source and 3A sink capability
• Operating Temperature Range: Must support -40°C ~ 125°C
• Mounting Type: Must be Surface Mount

The FAN3227TMX qualifies as a functional substitute based on these parameters. Both devices share identical electrical specifications for supply voltage, logic thresholds, output current ratings, and operating temperature range. The primary difference lies in input configuration and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The FAN3227TMX serves as the primary substitute for the obsolete FAN3228TMPX. Both devices maintain identical electrical performance across all critical parameters: supply voltage range, logic thresholds, output current capability, and operating temperature specifications.

The FAN3227TMX offers the advantage of active product status, ensuring continued availability and manufacturing support. This device is RoHS3 compliant, providing enhanced environmental and regulatory compliance compared to the obsolete predecessor.

Package format differs between the two devices: the FAN3228TMPX uses 8-WDFN with exposed pad, while the FAN3227TMX employs 8-SOIC format. This packaging difference requires PCB layout modification but does not affect electrical functionality or performance characteristics.

Input configuration represents the only functional distinction: the FAN3228TMPX supports both inverting and non-inverting inputs across its two independent channels, whereas the FAN3227TMX provides non-inverting input configuration only. Design implementations utilizing only non-inverting inputs can transition directly to the FAN3227TMX without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the FAN3227TMX directly replace the FAN3228TMPX without circuit changes?

A: Direct replacement depends on input configuration requirements. If your design uses only non-inverting inputs, the FAN3227TMX provides identical electrical performance. If inverting input functionality is required, circuit redesign is necessary. PCB layout modification is required due to different package formats (8-WDFN versus 8-SOIC).

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: low-side driven configuration, dual independent channels, N-channel MOSFET gate type, 4.5V to 18V supply voltage range, 0.8V/2V logic thresholds, 3A peak source and sink output current, and -40°C to 125°C operating temperature range. All these parameters must match between the original and substitute device.

Q: Why is the FAN3227TMX recommended over the FAN3228TMPX?

A: The FAN3227TMX is recommended because it maintains active product status with ongoing manufacturing support, whereas the FAN3228TMPX is obsolete. Both devices provide identical electrical specifications, but the FAN3227TMX offers superior long-term availability and RoHS3 compliance.

Q: What packaging considerations apply when substituting these devices?

A: The FAN3228TMPX uses 8-WDFN exposed pad packaging, while the FAN3227TMX uses 8-SOIC format. These different package footprints require PCB layout redesign. Verify thermal management requirements, as the exposed pad on the WDFN package may have provided enhanced heat dissipation in the original design.

Q: Are there any compliance or certification differences between these parts?

A: Both devices are REACH unaffected and carry EAR99 ECCN classification. The FAN3227TMX is RoHS3 compliant, providing enhanced environmental compliance. Both maintain MSL 1 (unlimited) moisture sensitivity rating.