BQ25100AYFPR Equivalent & Substitute Parts

Part Overview

The BQ25100AYFPR is an active lithium-ion/polymer battery charger IC manufactured by Texas Instruments, designed for single-cell battery charging applications. This component operates as a constant-current charger with programmable charging current up to 250mA and integrated fault protection for over-temperature, over-voltage, and short-circuit conditions. The part is packaged in a 6-DSBGA surface-mount configuration and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Alternative models are necessary when addressing specific application requirements including packaging constraints, higher charging current capabilities, different operating temperature ranges, or supply voltage specifications that may differ from the primary part.

Substiute Parts

BQ25100AYFPR

Texas InstrumentsIn Stock: 9896BQ25100AYFPR Datasheet

Current PartRFQ

BQ25100AYFPT

Texas InstrumentsIn Stock: 1344BQ25100AYFPT Datasheet

Parametric EquivalentRFQ

RT9524GQW

Richtek USA Inc.In Stock: 1733RT9524GQW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BQ25100AYFPR is determined by the following critical parameters:

Primary Substitution Criteria:

• Battery chemistry compatibility (Lithium Ion/Polymer for single-cell applications)
• Single-cell charging architecture
• Constant-current programmable charging capability
• Surface-mount technology
• ROHS3 compliance and REACH unaffected status

Packaging Consideration: The BQ25100AYFPT represents a parametric equivalent with identical electrical specifications but differs only in packaging format (Tape & Reel versus standard packaging). This substitution maintains full functional compatibility.

Extended Substitution: The RT9524GQW is a manufacturer-recommended alternative that maintains core charging functionality for single-cell lithium-ion applications but introduces variations in maximum charging current (1.1A versus 250mA), battery pack voltage (4.2V versus 4.3V), maximum supply voltage (5.5V versus 6.45V), operating temperature range (-20°C ~ 85°C versus 0°C ~ 125°C), and package format (10-WDFN versus 6-DSBGA). This part is suitable only when application requirements align with its specific electrical and thermal parameters.

Parameter Comparison

Engineering Selection Recommendations

BQ25100AYFPT Selection: This part is suitable as a direct substitute when packaging format (Tape & Reel) aligns with procurement and assembly requirements. All electrical, thermal, and compliance specifications remain identical to the BQ25100AYFPR. Both parts maintain active product status and ROHS3 compliance.

RT9524GQW Selection: This part is suitable only when application requirements specifically accommodate the following deviations: higher maximum charging current (1.1A), lower battery pack voltage (4.2V), reduced maximum supply voltage (5.5V), narrower operating temperature range (-20°C ~ 85°C ambient), reduced fault protection (over-temperature only), and different package footprint (10-WDFN). This part is ROHS3 compliant and maintains active product status but has higher moisture sensitivity (MSL 3).

Frequently Asked Questions (FAQ)

Q: Can BQ25100AYFPT replace BQ25100AYFPR in all applications? A: Yes. The BQ25100AYFPT is a parametric equivalent with identical electrical specifications. The only difference is packaging format (Tape & Reel). Substitution is valid provided the assembly process accommodates the packaging format.

Q: What are the key differences between BQ25100AYFPR and RT9524GQW? A: The RT9524GQW differs in maximum charging current (1.1A versus 250mA), battery pack voltage (4.2V versus 4.3V), maximum supply voltage (5.5V versus 6.45V), operating temperature range (-20°C ~ 85°C versus 0°C ~ 125°C), fault protection capabilities (over-temperature only versus over-temperature, over-voltage, and short-circuit), and package format (10-WDFN versus 6-DSBGA).

Q: Is the RT9524GQW a direct replacement for BQ25100AYFPR? A: No. The RT9524GQW is a manufacturer-recommended alternative for single-cell lithium-ion charging but is not a direct replacement. Application requirements must align with its specific electrical parameters, thermal range, and protection features before selection.

Q: What is the impact of different package types on substitution? A: Package differences (6-DSBGA versus 10-WDFN) affect PCB layout, footprint design, and assembly process compatibility. Electrical functionality remains equivalent when parameters align, but physical integration requires design review.

Q: Are all substitute parts ROHS3 compliant? A: Yes. BQ25100AYFPR, BQ25100AYFPT, and RT9524GQW are all ROHS3 compliant and REACH unaffected.

Q: What is the significance of MSL rating differences? A: BQ25100AYFPR and BQ25100AYFPT have MSL 1 (unlimited moisture sensitivity), while RT9524GQW has MSL 3 (168 hours). This affects storage conditions and handling procedures during assembly. MSL 3 components require stricter moisture control and shorter exposure times before soldering.