MAX1667EAP+ Equivalent & Substitute Parts

Part Overview

The MAX1667EAP+ is a multi-chemistry battery charger IC manufactured by Analog Devices Inc./Maxim Integrated, designed for applications requiring flexible charging across multiple battery chemistries. This component operates as a Surface Mount device in a 20-SSOP package and supports I2C interface communication. The part is marked as "Not For New Designs," indicating it has reached end-of-life status and alternative solutions should be evaluated for new development projects. Finding equivalent or substitute parts becomes necessary when addressing legacy system maintenance, inventory replenishment for existing products, or when transitioning designs to actively supported alternatives.

Substiute Parts

MAX1667EAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 3154MAX1667EAP+ Datasheet

Current PartRFQ

MAX1667EAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 3154MAX1667EAP+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1667EAP+ is determined by strict alignment across the following critical parameters:

Package Compatibility: The 20-SSOP (0.209", 5.30mm Width) surface mount package is the primary mechanical constraint. Substitute parts must use identical or pin-compatible packaging to ensure PCB layout compatibility without redesign.

Electrical Specifications: Multi-chemistry battery support, maximum charge current ratings (4A, 3A, 1A), battery pack voltage tolerance (18.4V max), and supply voltage range (28V max) define the functional operating envelope. Substitute parts must meet or exceed these specifications.

Interface Requirements: I2C communication protocol is mandatory for system integration. Substitute parts must support I2C interface without modification to host firmware or control logic.

Environmental & Compliance Standards: Operating temperature range (-40°C ~ 85°C), RoHS3 compliance, REACH unaffected status, and MSL rating (1) establish regulatory and reliability baselines. Substitute parts must maintain equivalent or superior compliance posture.

Product Status Consideration: The MAX1667EAP+ is marked "Not For New Designs." For legacy support applications, direct equivalents are acceptable. For new development, actively supported alternatives from the same manufacturer or qualified competitors should be prioritized.

Parameter Comparison

Engineering Selection Recommendations

For Legacy System Support: The MAX1667EAP+ remains suitable for maintenance and repair of existing products where the part is already in production use. Direct equivalents maintain full compatibility with established PCB layouts, firmware, and system integration without modification.

For New Development: Given the "Not For New Designs" status, evaluation of actively supported battery charger ICs from Analog Devices Inc./Maxim Integrated or qualified alternative manufacturers is recommended. Selection criteria should prioritize parts with current product status, extended lifecycle support, and equivalent or enhanced electrical specifications.

Compliance Verification: All substitute parts must maintain ROHS3 compliance and REACH unaffected status to satisfy regulatory requirements in target markets. MSL rating of 1 (Unlimited) ensures compatibility with standard PCB assembly and storage practices without special moisture control measures.

Package Validation: Confirm that substitute parts use the 20-SSOP package or a pin-compatible variant to avoid PCB redesign. Any package deviation requires full electrical and mechanical validation before implementation.

Frequently Asked Questions (FAQ)

Q: Can the MAX1667EAP+ be replaced with a different package variant? A: No. The 20-SSOP (0.209", 5.30mm Width) package is mechanically and electrically specific to this design. Package changes require PCB layout modification and full system re-validation. Pin-compatible alternatives in the same package footprint are acceptable substitutes.

Q: What does "Not For New Designs" mean for this part? A: This designation indicates the MAX1667EAP+ has reached end-of-life status and Analog Devices Inc./Maxim Integrated no longer recommends it for new product development. Existing products using this part may continue to receive support, but new designs should evaluate current-generation alternatives.

Q: Is the I2C interface mandatory for substitution? A: Yes. The I2C interface is the primary communication protocol for this charger IC. Any substitute must support I2C without requiring firmware modifications or additional interface circuitry.

Q: What are the critical electrical parameters for substitution? A: Multi-chemistry battery support, maximum charge current (4A, 3A, 1A), battery pack voltage tolerance (18.4V max), and supply voltage range (28V max) are the primary electrical constraints. Substitute parts must meet or exceed these specifications.

Q: Does the MAX1667EAP+ require special handling or storage? A: No. The MSL rating of 1 (Unlimited) indicates this component does not require moisture-controlled storage or special handling procedures. Standard PCB assembly and storage practices are sufficient.

Q: Are there compliance concerns when substituting this part? A: Substitute parts must maintain ROHS3 compliance and REACH unaffected status to satisfy regulatory requirements. Verify compliance documentation for any alternative part before implementation.