Equivalent & Substitute Parts Reference: LP3918TL/NOPB

Part Overview

The LP3918TL/NOPB is a power management integrated circuit (PMIC) from Texas Instruments, designed for lithium-ion battery charging applications. It features a 25-uSMD package, a programmable constant charge current up to 950mA, reverse current fault protection, and supports I2C interface for configuration. The part is currently listed as "Not For New Designs," indicating that it is not recommended for use in new projects. This status necessitates the identification of substitute models to ensure ongoing manufacturability and design support.

Substiute Parts

LP3918TL/NOPB

Texas InstrumentsIn Stock: 1376LP3918TL/NOPB Datasheet

Current PartRFQ

LP3918TL-A/NOPB

Texas InstrumentsIn Stock: 1875LP3918TL-A/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is permitted when essential parameters are matched. In this category, the key factors are:

• Manufacturer: Texas Instruments
• Battery Chemistry: Lithium Ion
• Maximum Charge Current
• Battery Pack Voltage
• Package / Case
• Mounting Type
• Interface
• Moisture Sensitivity Level (MSL)
• REACH Status
• Base Product Number

Only parts meeting the above criteria can be considered for substitution. Substitute candidates must retain identical battery chemistry and comparable package/mounting characteristics. Product status must support continuity in new or ongoing designs.

Parameter Comparison

Engineering Selection Recommendations

LP3918TL/NOPB is classified as "Not For New Designs," indicating discontinuation for new project requirements. LP3918TL-A/NOPB holds "Active" status, maintaining ongoing manufacturer support. Both LP3918TL/NOPB and LP3918TL-A/NOPB are REACH unaffected. Moisture Sensitivity Level is defined for LP3918TL/NOPB and vendor-undefined for LP3918TL-A/NOPB; engineers must review packaging environments accordingly. Base product number remains consistent, confirming series continuity.

Frequently Asked Questions (FAQ)

Q1: Can LP3918TL-A/NOPB be used as a direct substitute for LP3918TL/NOPB? A1: LP3918TL-A/NOPB is identified by the same base product number and manufacturer, and is listed as "Active," supporting ongoing availability.

Q2: Are package and mounting types compatible? A2: Both models are specified within the same product family. Review packaging and mounting in detail to ensure mechanical fit.

Q3: Does the substitute maintain identical compliance status? A3: REACH status for both parts is unaffected, denoting compliance. MSL is vendor-undefined for the substitute; consult supplier documentation for handling guidelines.

Q4: Is electrical compatibility assured? A4: Substitute selection is based on matching battery chemistry, product category, and series designation. Review application-specific data as required.

Q5: Should substitute selections consider part status? A5: Product status is critical. LP3918TL-A/NOPB is "Active," supporting current designs, while LP3918TL/NOPB is "Not For New Designs."