MAX4378FAUD-T Equivalent & Substitute Parts

Part Overview

The MAX4378FAUD-T is a current sense amplifier integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This device contains four independent current sensing circuits in a 14-TSSOP surface mount package. The part is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. Current sense amplifiers are essential components in power management, battery monitoring, and load current measurement applications where precise current detection is required across supply voltage ranges of 3V to 28V.

Substiute Parts

MAX4378FAUD-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1153MAX4378FAUD-T Datasheet

Current PartRFQ

MAX4378FAUD+T

Analog Devices Inc./Maxim IntegratedIn Stock: 995MAX4378FAUD+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4378FAUD-T is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier type classification as current sense amplifier
• Identical number of circuits (4 channels)
• Matching slew rate specification (10 V/µs)
• Identical -3dB bandwidth (2 MHz)
• Equivalent input bias current (120 µA)
• Matching supply current per channel (1 mA x4)
• Overlapping supply voltage range (3V to 28V minimum and maximum)
• Compatible operating temperature range (-40°C to 125°C)

Mechanical Equivalence Criteria:

• Surface mount mounting type
• Identical package designation (14-TSSOP with 0.173" / 4.40mm width)
• Pin-compatible footprint

Compliance Equivalence Criteria:

• ROHS3 compliance status
• Moisture sensitivity level MSL 1
• REACH unaffected status

The substitute part MAX4378FAUD+T meets all electrical, mechanical, and compliance requirements for direct substitution. The primary distinction between the main part and substitute is the packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The MAX4378FAUD+T is the direct equivalent substitute for the obsolete MAX4378FAUD-T. Both parts share identical electrical specifications, mechanical compatibility, and regulatory compliance certifications. The substitute part maintains active product status with Analog Devices Inc./Maxim Integrated, ensuring continued availability and manufacturing support.

The primary distinction between the two parts is the packaging format. The MAX4378FAUD-T is supplied in tube packaging, while the MAX4378FAUD+T is supplied in Tape & Reel (TR) format. This difference affects handling, storage, and automated assembly processes but does not impact electrical performance or functional compatibility.

For new designs and production transitions from the obsolete MAX4378FAUD-T, the MAX4378FAUD+T is the appropriate selection. The active product status ensures long-term supply chain stability and access to current manufacturing documentation. Both parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can MAX4378FAUD+T be used as a direct replacement for MAX4378FAUD-T in existing designs?

A: Yes. The MAX4378FAUD+T is electrically and mechanically identical to the MAX4378FAUD-T. All electrical parameters, operating ranges, and package dimensions are equivalent. The parts are pin-compatible and functionally interchangeable in circuit applications.

Q: What is the difference between the two part numbers?

A: The primary difference is the packaging format. MAX4378FAUD-T uses tube packaging, while MAX4378FAUD+T uses Tape & Reel (TR) packaging. This affects component handling and automated assembly processes but does not affect electrical performance or circuit functionality.

Q: Why is the MAX4378FAUD-T listed as obsolete?

A: The MAX4378FAUD-T has been discontinued by the manufacturer. The MAX4378FAUD+T remains in active production and is the recommended part for new designs and ongoing production requirements.

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

A: No. Both parts maintain identical ROHS3 compliance status, MSL 1 moisture sensitivity level, and REACH unaffected status. Regulatory and environmental certifications are equivalent.

Q: What is the 14-TSSOP package specification?

A: The 14-TSSOP (Thin Shrink Small Outline Package) is a surface mount package with 14 pins, a width of 0.173 inches (4.40mm), and a thin profile. This package is standard for integrated circuits requiring compact form factors in high-density applications.

Q: Can the Tape & Reel format be converted to tube format for manual assembly?

A: Tape & Reel components can be manually extracted from the carrier tape for manual assembly processes. However, this requires additional handling steps and is not recommended for high-volume production. Tape & Reel format is optimized for automated pick-and-place assembly equipment.

Q: What supply voltage range does this current sense amplifier support?

A: The MAX4378FAUD+T operates across a supply voltage range of 3V to 28V, accommodating applications from low-voltage battery-powered systems to industrial 24V systems and automotive applications.

Q: What is the operating temperature range for this device?

A: Both the MAX4378FAUD-T and MAX4378FAUD+T operate across a temperature range of -40°C to 125°C, suitable for industrial, automotive, and commercial temperature environments.