MAX1811ESA Equivalent & Substitute Parts

Part Overview

The MAX1811ESA is a lithium-ion battery charger IC manufactured by Analog Devices Inc./Maxim Integrated, designed for single-cell battery charging applications. This device operates as a constant-current charger with integrated over-current fault protection and USB interface connectivity. The MAX1811ESA is classified as obsolete, which necessitates identification of equivalent substitute components for new designs and ongoing production requirements. Active equivalent parts ensure design continuity and supply chain reliability.

Substiute Parts

MAX1811ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 2167MAX1811ESA Datasheet

Current PartRFQ

MAX1811ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2066MAX1811ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1811ESA is determined by strict equivalence across the following critical parameters:

• Battery chemistry and cell count (Lithium Ion, 1 cell)
• Maximum charge current specification (500mA)
• Battery pack voltage output (4.2V)
• Maximum supply voltage (6.5V)
• Interface type (USB)
• Operating temperature range (-40°C ~ 85°C)
• Package and case dimensions (8-SOIC, 0.154", 3.90mm Width)
• Mounting technology (Surface Mount)
• Fault protection capability (Over Current)
• Charging mode (Constant Current)

The MAX1811ESA+ qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MAX1811ESA+ is the direct equivalent substitute for the obsolete MAX1811ESA. Both components share identical electrical and mechanical specifications, ensuring functional interchangeability in circuit designs.

The MAX1811ESA+ offers the advantage of active product status, ensuring ongoing manufacturer support and supply availability. Additionally, the MAX1811ESA+ meets ROHS3 compliance requirements, whereas the original MAX1811ESA is non-compliant. For new designs and production environments subject to RoHS regulations, the MAX1811ESA+ is the appropriate selection.

Both components maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99), confirming regulatory equivalence for export and supply chain purposes.

Frequently Asked Questions (FAQ)

Q: Can MAX1811ESA+ be used as a direct replacement for MAX1811ESA in existing designs?

A: Yes. The MAX1811ESA+ is electrically and mechanically identical to the MAX1811ESA across all specified parameters, including charge current, battery voltage, supply voltage, operating temperature range, and package dimensions. No circuit modifications are required.

Q: What is the primary difference between MAX1811ESA and MAX1811ESA+?

A: The MAX1811ESA+ is an active product with ROHS3 compliance, while the MAX1811ESA is obsolete and RoHS non-compliant. The MAX1811ESA+ is supplied in tube packaging, whereas the original part's packaging type is not specified.

Q: Are there any compatibility concerns with the 8-SOIC package?

A: No. Both parts use identical 8-SOIC packaging (0.154", 3.90mm Width) with surface mount technology. PCB footprints and assembly processes remain unchanged.

Q: Does the MAX1811ESA+ support the same USB interface and charging specifications?

A: Yes. The MAX1811ESA+ maintains identical USB interface connectivity, 500mA maximum charge current, 4.2V battery pack voltage, and 6.5V maximum supply voltage specifications.

Q: Is the MAX1811ESA+ suitable for designs requiring RoHS compliance?

A: Yes. The MAX1811ESA+ is ROHS3 compliant, making it appropriate for applications and markets with RoHS regulatory requirements.