MAX4821EUP Equivalent & Substitute Parts

Part Overview

The MAX4821EUP is a Power Switch/Driver IC designed for 1:8 N-Channel relay and solenoid driving applications. This component operates with a load voltage range of 2.3V to 5.5V and delivers a maximum output current of 70mA per channel in a low-side configuration. The device is packaged in a 20-TSSOP form factor with an exposed pad for thermal management.

The MAX4821EUP is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

MAX4821EUP

Analog Devices Inc./Maxim IntegratedIn Stock: 24727MAX4821EUP Datasheet

Current PartRFQ

MAX4821EUP+

Analog Devices Inc./Maxim IntegratedIn Stock: 1487MAX4821EUP+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4821EUP is determined by strict equivalence across the following critical parameters:

• Number of Outputs: 8 channels
• Ratio - Input:Output: 1:8 configuration
• Output Configuration: Low Side topology
• Output Type: N-Channel switching
• Voltage - Load: 2.3V ~ 5.5V operating range
• Current - Output (Max): 70mA per channel
• Rds On (Typ): 2Ohm on-resistance
• Package / Case: 20-TSSOP with exposed pad
• Mounting Type: Surface Mount

The MAX4821EUP+ qualifies as a direct substitute based on identical electrical specifications, package form factor, and thermal characteristics. The primary distinction between these parts is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MAX4821EUP+ is the direct functional equivalent of the MAX4821EUP. Both parts share identical electrical performance, thermal characteristics, and physical packaging specifications. The MAX4821EUP+ is the preferred selection for new designs and ongoing production due to its active product status and ROHS3 compliance certification.

For applications currently using the MAX4821EUP, transition to the MAX4821EUP+ maintains full electrical and mechanical compatibility while ensuring compliance with current regulatory requirements and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the MAX4821EUP+ be used as a direct replacement for the MAX4821EUP?

A: Yes. Both parts are electrically and mechanically identical. They share the same 8-channel 1:8 N-Channel low-side driver configuration, 70mA output current rating, 2Ohm on-resistance, and 20-TSSOP package with exposed pad. Pin-for-pin compatibility is maintained.

Q: What is the primary difference between MAX4821EUP and MAX4821EUP+?

A: The MAX4821EUP is obsolete, while the MAX4821EUP+ maintains active product status. The MAX4821EUP+ also carries ROHS3 compliance certification, whereas the MAX4821EUP is RoHS non-compliant. The MAX4821EUP+ additionally supports both Parallel and Serial interface options.

Q: Are there any package or mounting differences?

A: No. Both parts use identical 20-TSSOP surface mount packaging with exposed pad. PCB layout and thermal management considerations remain unchanged between the two parts.

Q: What voltage and current specifications must be matched for substitution?

A: Load voltage must remain within 2.3V to 5.5V, and output current per channel must not exceed 70mA. Both the MAX4821EUP and MAX4821EUP+ meet these specifications identically.

Q: Is the MAX4821EUP+ suitable for new product designs?

A: Yes. The MAX4821EUP+ is the recommended choice for new designs. Its active product status ensures long-term availability and supply chain support.