BQ29412PW Equivalent & Substitute Parts

Part Overview

The BQ29412PW is a Battery Protection IC for Lithium Ion applications, designed to protect 2 to 4 cell battery packs from over voltage conditions. Manufactured by Texas Instruments in an 8-TSSOP surface mount package, this component provides essential fault protection in portable power systems.

The BQ29412PW is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

BQ29412PW

Texas InstrumentsIn Stock: 16750BQ29412PW Datasheet

Current PartRFQ

BQ29410PW

Texas InstrumentsIn Stock: 80146BQ29410PW Datasheet

Parametric EquivalentRFQ

BQ29411PW

Texas InstrumentsIn Stock: 1527BQ29411PW Datasheet

Parametric EquivalentRFQ

BQ29419PW

Texas InstrumentsIn Stock: 2025BQ29419PW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BQ29412PW are determined by strict equivalence across the following critical parameters:

• Battery Chemistry: Lithium Ion
• Number of Cells: 2 ~ 4
• Fault Protection: Over Voltage
• Operating Temperature Range: -40°C ~ 110°C (TA)
• Package / Case: 8-TSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount
• Manufacturer: Texas Instruments

All substitute parts listed below match these parameters exactly. The primary distinction among substitutes is product status (active vs. obsolete) and regulatory compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—BQ29410PW, BQ29411PW, and BQ29419PW—are functionally equivalent to the BQ29412PW based on electrical and mechanical parameters. The following factors apply to component selection:

Product Status: BQ29410PW, BQ29411PW, and BQ29419PW are all active products, whereas BQ29412PW is obsolete. Active status ensures ongoing manufacturer support and availability.

Regulatory Compliance: BQ29410PW, BQ29411PW, and BQ29419PW are ROHS3 compliant, while BQ29412PW is RoHS non-compliant. For applications subject to RoHS regulations, the substitute parts satisfy compliance requirements.

Moisture Sensitivity: BQ29410PW and BQ29411PW have MSL 1 (Unlimited), matching the original part. BQ29419PW has MSL 2 (1 Year), which imposes stricter moisture control during storage and handling.

Inventory Availability: BQ29410PW has the highest inventory level (80,096 pcs), followed by BQ29419PW (2,000 pcs) and BQ29411PW (1,437 pcs).

Frequently Asked Questions (FAQ)

Q: Can BQ29410PW, BQ29411PW, and BQ29419PW be used as direct replacements for BQ29412PW?

A: Yes. All three parts are parametrically equivalent across battery chemistry, cell count, fault protection, operating temperature, package type, and mounting method. Direct substitution is supported from an electrical and mechanical standpoint.

Q: What is the difference between the substitute parts?

A: The substitute parts are functionally identical in their core battery protection specifications. Differences exist in product status (all are active), regulatory compliance (all are ROHS3 compliant), moisture sensitivity level (BQ29419PW is MSL 2 versus MSL 1 for the others), and current inventory levels.

Q: Does the MSL 2 rating of BQ29419PW affect its suitability?

A: MSL 2 (1 Year) requires stricter moisture control during storage and handling compared to MSL 1 (Unlimited). Component selection should account for your supply chain and storage conditions. If unlimited moisture tolerance is required, BQ29410PW or BQ29411PW are preferred.

Q: Are there any package or pinout differences among the substitute parts?

A: No. All parts use the 8-TSSOP package with identical dimensions (0.173", 4.40mm Width). Pinout and mechanical compatibility are identical.

Q: Why is BQ29412PW marked as obsolete?

A: The BQ29412PW has reached end-of-life status. Texas Instruments continues to offer functionally equivalent active alternatives in the BQ2941x series to support ongoing design requirements.