AH5773-FDC-7 Equivalent & Substitute Parts

Part Overview

The AH5773-FDC-7 is a single-phase brushless DC (BLDC) motor driver IC manufactured by Diodes Incorporated. This fully integrated power management IC combines control and power stage functionality in a compact 6-UDFN surface mount package with exposed pad. The device operates across a supply voltage range of 2.4V to 18V and delivers 1A output current, making it suitable for general-purpose motor control applications. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent substitute parts is essential for design continuity and long-term supply chain planning.

Substiute Parts

AH5773-FDC-7

Diodes IncorporatedIn Stock: 69224AH5773-FDC-7 Datasheet

Current PartRFQ

AH5773-FDC-7

Diodes IncorporatedIn Stock: 69224AH5773-FDC-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AH5773-FDC-7 is determined by strict alignment across the following critical parameters:

• Motor driver function with fully integrated control and power stage
• Brushless DC (BLDC) motor type support
• Half-bridge output configuration (2 outputs)
• PWM interface compatibility
• Power MOSFET technology
• 1A output current rating
• 2.4V to 18V supply and load voltage range
• Surface mount packaging in 6-UDFN form factor with exposed pad
• Operating temperature range of -40°C to 150°C
• ROHS3 compliance and MSL 1 rating

Only parts meeting all these specifications qualify as direct parametric equivalents. No deviations in electrical ratings, package type, or functional architecture are permitted for true substitution.

Parameter Comparison

Engineering Selection Recommendations

The AH5773-FDC-7 is ROHS3 compliant and carries MSL 1 rating, indicating unrestricted moisture sensitivity and full environmental compliance. The part's Last Time Buy status necessitates proactive component qualification and inventory planning. When selecting this part or its equivalents, confirm that the substitute maintains identical electrical specifications, package geometry, and compliance certifications. The 6-UDFN exposed pad package requires proper PCB thermal design to ensure reliable operation at maximum current and temperature ratings. All substitute parts must be sourced from authorized distributors to guarantee authenticity and compliance documentation.

Frequently Asked Questions (FAQ)

Q: What makes a part a true substitute for the AH5773-FDC-7?

A: A substitute must match all critical parameters: BLDC motor driver function, fully integrated control and power stage, half-bridge output configuration, PWM interface, Power MOSFET technology, 1A output current, 2.4V–18V supply/load voltage, -40°C to 150°C operating temperature, 6-UDFN surface mount package with exposed pad, ROHS3 compliance, and MSL 1 rating. Any deviation disqualifies the part as a direct substitute.

Q: Why is the AH5773-FDC-7 listed as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing production. This requires design teams to secure adequate inventory or identify qualified alternatives before the part becomes unavailable.

Q: Can I use a different package type as a substitute?

A: No. The 6-UDFN exposed pad package is a critical specification. Different package types have different thermal characteristics, pin configurations, and PCB footprints, making them incompatible for direct substitution.

Q: What is the significance of the exposed pad in the 6-UDFN package?

A: The exposed pad provides direct thermal connection to the PCB, enabling efficient heat dissipation during high-current operation. This is essential for maintaining junction temperature within the -40°C to 150°C operating range.

Q: Are there any voltage derating considerations?

A: The part operates across 2.4V to 18V for both supply and load. Design applications must remain within this range. Operation outside these limits voids the substitution equivalence.

Q: What compliance certifications should I verify?

A: Confirm ROHS3 compliance and MSL 1 rating for any substitute part. These certifications ensure environmental compliance and unrestricted moisture sensitivity handling.