FSB44104A Equivalent & Substitute Parts

Part Overview

The FSB44104A is a brushless DC (BLDC) motor driver IC manufactured by onsemi, designed for power management applications requiring integrated control and power stage functionality. Operating within a supply voltage range of 14.6V to 16.5V with a 20V load rating, this component integrates three half-bridge output configurations in a 22-DIP through-hole package. The FSB44104A is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

FSB44104A

onsemiIn Stock: 967FSB44104A Datasheet

Current PartRFQ

FSB43004A

Fairchild SemiconductorIn Stock: 3164FSB43004A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FSB44104A is determined by strict alignment of the following critical parameters:

• Motor Driver Type: Brushless DC (BLDC) motor driver with fully integrated control and power stage
• Output Configuration: Three half-bridge outputs
• Interface Protocol: Parallel control interface
• Power Technology: Power MOSFET-based implementation
• Supply Voltage Range: 14.6V ~ 16.5V
• Load Voltage Rating: 20V
• Operating Temperature Range: -40°C ~ 150°C (TJ)
• Package Format: 22-DIP through-hole module
• Application Category: General purpose motor control

The FSB43004A meets all specified electrical and mechanical parameters, maintaining functional equivalence across control architecture, power delivery capability, thermal performance, and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

The FSB43004A is the qualified substitute for the FSB44104A based on complete parametric alignment. The primary distinction is product lifecycle status: the FSB44104A is obsolete while the FSB43004A maintains active production status. For applications currently using the FSB44104A, transition to the FSB43004A ensures continued component availability and supply chain stability. The FSB43004A carries RoHS3 compliance certification, providing enhanced environmental and regulatory alignment compared to the obsolete predecessor. Both components share identical electrical specifications, output architecture, and thermal operating range, ensuring direct functional substitution in 22-DIP through-hole applications requiring BLDC motor control with integrated power stage functionality.

Frequently Asked Questions (FAQ)

Q: Can the FSB43004A directly replace the FSB44104A in existing designs?

A: Yes. Both components share identical electrical parameters including supply voltage range (14.6V ~ 16.5V), load voltage rating (20V), operating temperature range (-40°C ~ 150°C), output configuration (three half-bridges), and 22-DIP through-hole package format. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The FSB44104A is classified as obsolete. The FSB43004A is an active production component with equivalent specifications, ensuring long-term availability and supply chain continuity.

Q: Are there packaging differences between these components?

A: Both components use identical 22-DIP through-hole packaging. Physical dimensions and pin configurations are compatible for direct board-level substitution.

Q: What compliance certifications apply to the substitute part?

A: The FSB43004A is RoHS3 compliant, meeting current environmental and hazardous substance restrictions. Both components are REACH unaffected and classified under ECCN EAR99.

Q: Are the control interfaces identical?

A: Yes. Both components use parallel control interface architecture with fully integrated control and power stage functionality, maintaining identical signal timing and control logic requirements.