UCC3911DP-2 Equivalent & Substitute Parts

Part Overview

The UCC3911DP-2 is a battery protection IC designed for lithium ion/polymer 2-cell applications, manufactured by Texas Instruments. This device provides over/under voltage and short circuit protection in a 16-SOIC surface mount package. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design requirements and component sourcing.

Substiute Parts

UCC3911DP-2

Texas InstrumentsIn Stock: 2032UCC3911DP-2 Datasheet

Current PartRFQ

S-8252AAB-M6T1U

ABLIC Inc.In Stock: 4334S-8252AAB-M6T1U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCC3911DP-2 is determined by the following critical parameters:

Core Functional Requirements:

• Battery protection function for lithium ion/polymer chemistry
• 2-cell battery support
• Fault protection capability (over/under voltage and/or short circuit)
• Surface mount technology

Electrical Compatibility:

• Operating temperature range must accommodate the application environment
• Fault protection features must meet or exceed the original specification

Physical Compatibility:

• Package type must be compatible with PCB layout and assembly processes
• Pin count and pinout configuration must support circuit integration

The S-8252AAB-M6T1U from ABLIC Inc. qualifies as a substitute based on matching core functional requirements: 2-cell lithium ion/polymer battery protection with surface mount packaging. However, package form factor differs (SOT-23-6 versus 16-SOIC), requiring PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The UCC3911DP-2 is obsolete, while the S-8252AAB-M6T1U is active. Active product status ensures ongoing availability, manufacturing support, and compliance maintenance.

Compliance & Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for electronic component use. The S-8252AAB-M6T1U offers improved moisture sensitivity rating (MSL 1 versus MSL 2), providing extended shelf life and reduced handling constraints.

Operating Temperature: The S-8252AAB-M6T1U supports an extended operating temperature range (-40°C ~ 85°C) compared to the UCC3911DP-2 (-20°C ~ 70°C), accommodating broader application environments.

Package Consideration: Package change from 16-SOIC to SOT-23-6 requires PCB redesign. This substitution is suitable only when layout modification is feasible.

Frequently Asked Questions (FAQ)

Q: Can the S-8252AAB-M6T1U directly replace the UCC3911DP-2 without PCB modification?

A: No. The S-8252AAB-M6T1U uses SOT-23-6 packaging while the UCC3911DP-2 uses 16-SOIC packaging. Different pin counts and physical dimensions require PCB layout redesign and schematic verification.

Q: What are the key functional differences between these parts?

A: The UCC3911DP-2 provides over/under voltage and short circuit protection. The S-8252AAB-M6T1U provides over current protection. Fault protection feature sets differ and must be evaluated against application requirements.

Q: Why is the S-8252AAB-M6T1U recommended despite package differences?

A: The S-8252AAB-M6T1U is active product with extended temperature range, improved moisture sensitivity rating, and ongoing manufacturer support. These factors offset package compatibility considerations when redesign is possible.

Q: Are both parts suitable for the same battery chemistry and cell count?

A: Yes. Both parts support lithium ion/polymer battery chemistry and 2-cell configurations, meeting core functional requirements for this application category.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting standard regulatory requirements for electronic component use in regulated markets.