BQ24401DR Equivalent & Substitute Parts

Part Overview

The BQ24401DR is a multi-chemistry battery charger IC manufactured by Texas Instruments, packaged in 8-SOIC format. This component is classified as a Power Management IC (PMIC) and is currently in Last Time Buy status, indicating end-of-life phase. The device operates with a maximum supply voltage of 6V and supports operating temperatures from -20°C to 70°C. Due to its Last Time Buy status, identifying functionally compatible substitute parts is essential for design continuity and long-term product support.

Substiute Parts

BQ24401DR

Texas InstrumentsIn Stock: 3311BQ24401DR Datasheet

Current PartRFQ

BQ25172DSGR

Texas InstrumentsIn Stock: 39785BQ25172DSGR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The BQ25172DSGR is identified as a manufacturer-recommended substitute for the BQ24401DR. Substitution eligibility is determined by the following criteria:

Common Functional Parameters:

• Manufacturer: Both parts are Texas Instruments charger ICs
• Category: Both classified as Power Management (PMIC)
• Mounting Type: Both are surface-mount devices
• Compliance: Both meet RoHS and REACH requirements
• Moisture Sensitivity: Both rated MSL 1 (Unlimited)

Substitution Basis: The BQ25172DSGR provides battery charging functionality with expanded capabilities including programmable current, timer, and voltage control. While the BQ25172DSGR operates at higher maximum supply voltage (18V vs. 6V) and supports a broader temperature range (-40°C ~ 125°C), it maintains compatibility with multi-chemistry battery applications through its Nickel Metal Hydride support and programmable charging parameters.

Parameter Comparison

Engineering Selection Recommendations

Selection between BQ24401DR and BQ25172DSGR should be based on the following factors:

BQ24401DR Retention:

• Required for applications with strict 6V maximum supply voltage constraint
• Necessary when ROHS3 compliance is mandatory
• Suitable for temperature-limited environments (-20°C to 70°C)
• Appropriate when 8-SOIC package footprint is fixed in design

BQ25172DSGR Selection:

• Applicable for new designs or redesigns where Last Time Buy status necessitates component transition
• Suitable for applications requiring higher supply voltage tolerance (up to 18V)
• Appropriate for extended temperature range requirements (-40°C to 125°C)
• Viable when 8-WFDFN package can be accommodated in PCB layout
• Recommended when enhanced programmable charging features (current, voltage control) provide system benefits

Both components maintain equivalent RoHS/REACH compliance and unlimited moisture sensitivity ratings, supporting long-term reliability in standard manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can BQ25172DSGR directly replace BQ24401DR without circuit modifications?

A: Package differences (8-SOIC vs. 8-WFDFN) require PCB layout changes. Pin configuration and functional interface must be verified against respective datasheets before implementation.

Q: What is the primary reason for seeking BQ24401DR substitutes?

A: The BQ24401DR is in Last Time Buy status, indicating limited future availability. The BQ25172DSGR is an active product with ongoing manufacturer support.

Q: Are there temperature range limitations when substituting?

A: The BQ24401DR operates -20°C to 70°C, while BQ25172DSGR operates -40°C to 125°C. Applications within the BQ24401DR range are compatible with BQ25172DSGR; extended temperature applications require BQ25172DSGR.

Q: Does supply voltage difference affect substitution feasibility?

A: BQ24401DR maximum supply is 6V; BQ25172DSGR maximum is 18V. Applications designed for 6V operation are compatible with BQ25172DSGR. Applications requiring exactly 6V operation must retain BQ24401DR or implement voltage regulation.

Q: What packaging considerations apply to substitution?

A: BQ24401DR uses 8-SOIC (0.154", 3.90mm width); BQ25172DSGR uses 8-WFDFN Exposed Pad. Different footprints require PCB redesign. Verify pin assignments and thermal pad requirements in datasheets.

Q: Are both parts compliant with industry standards?

A: BQ24401DR is ROHS3 compliant. BQ25172DSGR RoHS status is not applicable. Both maintain MSL 1 (Unlimited) moisture sensitivity ratings and EAR99 export classification.