BQ2000TSN-B5TR Equivalent & Substitute Parts

Part Overview

The BQ2000TSN-B5TR is a multi-chemistry battery charger IC manufactured by Texas Instruments, designed for 1 to 4 cell battery pack applications. This Surface Mount device in 8-SOIC packaging supports programmable charging current, timer, and voltage parameters. The part is currently in Last Time Buy status, indicating production discontinuation. Alternative equivalent and substitute parts are necessary to ensure design continuity and long-term supply chain reliability.

Substiute Parts

BQ2000TSN-B5TR

Texas InstrumentsIn Stock: 1955BQ2000TSN-B5TR Datasheet

Current PartRFQ

BQ25172DSGR

Texas InstrumentsIn Stock: 39785BQ25172DSGR Datasheet

MFR RecommendedRFQ

BQ2000SN-B5TR

Texas InstrumentsIn Stock: 16355BQ2000SN-B5TR Datasheet

Parametric EquivalentRFQ

BQ2000TSN-B5TRG4

Texas InstrumentsIn Stock: 1075BQ2000TSN-B5TRG4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BQ2000TSN-B5TR is determined by the following critical parameters:

Primary Compatibility Criteria:

• Battery Chemistry support (Multi-Chemistry capability required)
• Number of Cells range (1 ~ 4 cells minimum)
• Supply Voltage compatibility (6V maximum supply)
• Package type (8-SOIC form factor preferred for direct PCB replacement)
• Programmable charging features (Current, Timer, Voltage)
• Surface Mount mounting type

Substitute Classification:

Parametric Equivalents maintain identical electrical and mechanical specifications, differing only in packaging format or product status:

• BQ2000SN-B5TR: Identical specifications, Cut Tape & Digi-Reel packaging, Active status
• BQ2000TSN-B5TRG4: Identical specifications, Discontinued at DiGi Electronics status

Manufacturer Recommended Substitute provides functional replacement with expanded capabilities:

• BQ25172DSGR: Extended cell support (1 ~ 6 cells), higher supply voltage (18V), enhanced fault protection, different package format (8-WSON 2x2)

Parameter Comparison

Engineering Selection Recommendations

For Direct PCB Replacement (No Layout Changes): BQ2000SN-B5TR is the primary equivalent. It maintains identical electrical specifications, package geometry, and pin configuration as the BQ2000TSN-B5TR while offering Active product status and superior long-term availability. This part requires no circuit modifications or PCB redesign.

For Extended Supply Chain Security: BQ2000TSN-B5TRG4 provides an alternative parametric equivalent with identical specifications. However, this part is Discontinued at DiGi Electronics, limiting its viability for new production designs.

For Enhanced Capability Requirements: BQ25172DSGR is the manufacturer-recommended substitute when design specifications permit. This part extends cell support to 1 ~ 6 cells and increases maximum supply voltage to 18V. It includes enhanced fault protection (Over Current, Over Temperature, Over Voltage, Short Circuit) and operates across a wider temperature range (-40°C ~ 125°C). The 8-WSON (2x2) package requires PCB layout modification and thermal management evaluation due to the exposed pad design. This part is Active and ROHS3 compliant status is not applicable.

Compliance Considerations: All parametric equivalents (BQ2000SN-B5TR, BQ2000TSN-B5TRG4) maintain ROHS3 compliance and REACH Unaffected status. The BQ25172DSGR substitute does not carry ROHS3 designation; compliance verification is required for applications with regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can BQ2000SN-B5TR be used as a direct replacement for BQ2000TSN-B5TR? A: Yes. BQ2000SN-B5TR is a parametric equivalent with identical electrical specifications, package dimensions, and pin configuration. The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and Active product status. No circuit or PCB modifications are required.

Q: What is the difference between the parametric equivalents and the manufacturer-recommended substitute? A: Parametric equivalents (BQ2000SN-B5TR, BQ2000TSN-B5TRG4) maintain identical specifications for 1 ~ 4 cell applications with 6V maximum supply. The manufacturer-recommended substitute BQ25172DSGR extends functionality to 1 ~ 6 cells and 18V supply voltage, includes additional fault protection features, and operates across a wider temperature range. However, it uses a different package format (8-WSON 2x2 versus 8-SOIC), requiring PCB redesign.

Q: Is BQ25172DSGR compatible with existing BQ2000TSN-B5TR PCB layouts? A: No. BQ25172DSGR uses an 8-WSON (2x2) package with exposed pad, while BQ2000TSN-B5TR uses 8-SOIC packaging. Pin count and footprint differ, requiring PCB layout modification. Thermal management design changes may also be necessary due to the exposed pad.

Q: Why is BQ2000TSN-B5TR in Last Time Buy status? A: Last Time Buy status indicates Texas Instruments has discontinued production. Existing inventory is available for final orders, but long-term supply is not guaranteed. Migration to an active alternative part is recommended for new designs.

Q: Can BQ2000TSN-B5TRG4 be used for new production designs? A: BQ2000TSN-B5TRG4 is Discontinued at DiGi Electronics with limited remaining inventory (989 Pcs). While parametrically equivalent, this part is not recommended for new production due to supply uncertainty. BQ2000SN-B5TR (Active status, 16295 Pcs in stock) is the preferred alternative.

Q: What are the key parameters that determine substitution eligibility? A: Substitution is determined by: battery chemistry support, number of cells range, maximum supply voltage, package type, programmable charging features, and mounting type. Designs operating within 1 ~ 4 cells and 6V supply can use any parametric equivalent. Designs requiring 1 ~ 6 cells or higher supply voltage must use BQ25172DSGR with PCB modifications.

Q: Does BQ25172DSGR support multi-chemistry charging like the BQ2000TSN-B5TR? A: No. BQ25172DSGR is specifically designed for Nickel Metal Hydride (NiMH) chemistry. The BQ2000TSN-B5TR supports multi-chemistry applications. If multi-chemistry support is required, use parametric equivalents BQ2000SN-B5TR or BQ2000TSN-B5TRG4.

Q: Are there compliance differences between these parts? A: BQ2000TSN-B5TR, BQ2000SN-B5TR, and BQ2000TSN-B5TRG4 are ROHS3 Compliant and REACH Unaffected. BQ25172DSGR does not carry ROHS3 designation. Verify compliance requirements for your application before selecting BQ25172DSGR.