BQ24262RGET Equivalent & Substitute Parts

Part Overview

The BQ24262RGET is a single-cell lithium-ion battery charger IC manufactured by Texas Instruments in a 24-VQFN (4x4) surface mount package. This device integrates charging control with programmable current management and thermal/voltage protection for 1-cell lithium-ion battery applications. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.

Substiute Parts

BQ24262RGET

Texas InstrumentsIn Stock: 771BQ24262RGET Datasheet

Current PartRFQ

BQ25601RTWR

Texas InstrumentsIn Stock: 70217BQ25601RTWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BQ24262RGET is determined by the following critical parameters:

• Battery Chemistry & Cell Count: Single-cell lithium-ion charging capability
• Maximum Charge Current: 3A constant programmable charging
• Battery Pack Voltage: 4.2V nominal output
• Interface Protocol: I2C communication bus
• Operating Temperature Range: -40°C to 85°C
• Package Type: 24-pin QFN with exposed pad, surface mount
• Fault Protection: Over-temperature and over-voltage detection
• Supply Voltage Tolerance: Maximum input voltage rating
• Compliance: ROHS3 and REACH compliance status

The BQ25601RTWR qualifies as a direct substitute based on matching all critical electrical parameters and maintaining compatible package geometry and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

The BQ25601RTWR is the manufacturer-recommended substitute for the obsolete BQ24262RGET. Selection is justified on the following basis:

• Product Status: The BQ25601RTWR maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete BQ24262RGET.
• Electrical Compatibility: All critical charging parameters—maximum current (3A), battery voltage (4.2V), cell count (1), and interface protocol (I2C)—are identical.
• Thermal & Operating Range: Operating temperature range (-40°C to 85°C) is maintained.
• Compliance Certifications: Both parts maintain ROHS3 and REACH compliance status.
• Package Compatibility: Both devices use 24-pin QFN packages with exposed pads suitable for surface mount assembly. The WQFN variant of the substitute provides equivalent thermal and electrical performance.
• Enhanced Supply Voltage Rating: The BQ25601RTWR supports input voltages up to 14.6V compared to 6V maximum on the BQ24262RGET, providing greater design flexibility without compromising core functionality.

Frequently Asked Questions (FAQ)

Q: Can the BQ25601RTWR directly replace the BQ24262RGET in existing designs?

A: Yes. The BQ25601RTWR matches all critical electrical parameters: single-cell lithium-ion charging, 3A maximum current, 4.2V battery voltage, I2C interface, and identical operating temperature range. Both parts use compatible 24-pin QFN packages with exposed pads.

Q: What is the difference between the 24-VFQFN and 24-WFQFN packages?

A: Both are 24-pin QFN packages in 4x4mm form factor with exposed pads. The VFQFN and WFQFN designations indicate minor variations in pad configuration and thermal characteristics. Both are suitable for surface mount assembly and provide equivalent thermal performance for this application.

Q: Why does the BQ25601RTWR support 14.6V input while the BQ24262RGET is limited to 6V?

A: The BQ25601RTWR incorporates enhanced input voltage tolerance, allowing operation across a wider range of supply conditions. This does not affect charging output or battery compatibility; the 4.2V battery voltage and 3A charging current remain identical.

Q: Are there any firmware or software changes required when switching from BQ24262RGET to BQ25601RTWR?

A: Both devices use I2C communication protocol. Firmware compatibility depends on the specific register map and command set implemented in your system. Consult the respective device datasheets for detailed register definitions.

Q: What is the inventory status of these parts?

A: The BQ24262RGET is obsolete with limited stock availability. The BQ25601RTWR is in active production with substantial inventory (70,200 pcs), ensuring reliable supply for new designs and production runs.