BQ2002SN Equivalent & Substitute Parts

Part Overview

The BQ2002SN is a multi-chemistry battery charger control IC manufactured by Texas Instruments, classified as a Power Management (PMIC) component. This 8-SOIC surface mount device provides constant and pulsed charging current control with programmable voltage features for 2V battery pack applications. The part is currently active in production with 1715 units in stock.

Substitute parts are necessary when the primary BQ2002SN is unavailable due to supply constraints, inventory depletion, or procurement lead time requirements. Texas Instruments offers multiple equivalent variants within the BQ2002 base product family that maintain identical electrical and mechanical specifications, enabling direct replacement in circuit designs.

Substiute Parts

BQ2002SN

Texas InstrumentsIn Stock: 1774BQ2002SN Datasheet

Current PartRFQ

BQ2002CSN

Texas InstrumentsIn Stock: 1497BQ2002CSN Datasheet

Parametric EquivalentRFQ

BQ2002TSN

Texas InstrumentsIn Stock: 2461BQ2002TSN Datasheet

Parametric EquivalentRFQ

BQ2002FSN

Texas InstrumentsIn Stock: 2336BQ2002FSN Datasheet

Parametric EquivalentRFQ

BQ2002GSN

Texas InstrumentsIn Stock: 5097BQ2002GSN Datasheet

Parametric EquivalentRFQ

BQ2002TSNG4

Texas InstrumentsIn Stock: 946BQ2002TSNG4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BQ2002SN is determined by strict parametric equivalence across the following critical criteria:

Electrical Specifications: Battery chemistry classification (Multi-Chemistry), battery pack voltage (2V), maximum supply voltage (6V), charging current mode (Constant, Pulsed), and programmable voltage features must be identical.

Mechanical Specifications: Package type (8-SOIC), case dimensions (0.154", 3.90mm Width), and mounting type (Surface Mount) must match exactly to ensure PCB compatibility without layout modifications.

Compliance & Environmental: RoHS3 compliance, REACH unaffected status, and MSL rating (1 - Unlimited) must be maintained to satisfy regulatory and manufacturing requirements.

Operational Range: Operating temperature range (0°C ~ 70°C) must be equivalent or superior.

All substitute parts listed below share the BQ2002 base product number and meet these criteria, confirming direct functional and physical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status): BQ2002CSN, BQ2002TSN, BQ2002FSN, and BQ2002GSN are all active production parts from Texas Instruments with identical electrical and mechanical specifications to the BQ2002SN. These parts are suitable for direct replacement without circuit modification. Selection among these active variants may be based on inventory availability and procurement lead times.

Secondary Substitute (Discontinued Status): BQ2002TSNG4 is discontinued at DiGi Electronics and should be considered only when other active alternatives are unavailable. While electrically and mechanically equivalent, its discontinued status may present future supply chain risks.

Compliance Assurance: All listed substitutes maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production runs. MSL rating of 1 (Unlimited) applies uniformly across all variants, eliminating moisture sensitivity constraints during storage and handling.

Inventory Considerations: BQ2002GSN offers the highest current inventory (5035 units), followed by BQ2002TSN (2399 units), providing optimal availability for immediate procurement needs.

Frequently Asked Questions (FAQ)

Q: Can BQ2002CSN, BQ2002TSN, BQ2002FSN, and BQ2002GSN be used interchangeably with BQ2002SN?

A: Yes. All four parts are parametric equivalents with identical electrical specifications (2V battery pack voltage, 6V maximum supply voltage, constant and pulsed charging current, voltage programmability), mechanical specifications (8-SOIC package, 0.154" width), and operating temperature range (0°C ~ 70°C). Direct substitution requires no circuit design changes.

Q: What is the difference between the BQ2002 variants (SN, CSN, TSN, FSN, GSN)?

A: The suffix letters (S, C, T, F, G) represent internal process or grade variations within the BQ2002 base product family. All variants share identical functional specifications and are manufactured by Texas Instruments. The differences are internal to the manufacturing process and do not affect circuit performance or compatibility.

Q: Is BQ2002TSNG4 suitable for new designs?

A: BQ2002TSNG4 is discontinued at DiGi Electronics and should not be selected for new designs. Use active production variants (BQ2002CSN, BQ2002TSN, BQ2002FSN, or BQ2002GSN) to ensure long-term supply chain stability and manufacturing support.

Q: Are there any package or pinout differences between these substitutes?

A: No. All substitutes use the 8-SOIC package with identical pinout and dimensions (0.154", 3.90mm Width). PCB footprints and component placement require no modification.

Q: Do all substitutes meet the same compliance standards?

A: Yes. All listed substitutes are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited). Regulatory and environmental compliance is uniform across all variants.

Q: Which substitute should I select if multiple are available?

A: Selection should prioritize active production status and inventory availability. BQ2002GSN (5035 units in stock) and BQ2002TSN (2399 units in stock) offer the best availability. Avoid BQ2002TSNG4 due to discontinued status.