FDMF2011 Equivalent & Substitute Parts

Part Overview

The FDMF2011 is a half bridge driver IC manufactured by onsemi, designed for DC motor control and general-purpose power management applications. It integrates a 20A output capability per channel with a supply voltage range of 10V to 20V and load voltage support up to 80V. The device features bootstrap circuit protection and UVLO (Under-Voltage Lock-Out) fault protection, making it suitable for inductive and capacitive load switching applications via PWM interface.

The FDMF2011 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance or redesigns requiring active component alternatives.

Substiute Parts

FDMF2011

onsemiIn Stock: 5719FDMF2011 Datasheet

Current PartRFQ

STSPIN240

STMicroelectronicsIn Stock: 3453STSPIN240 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDMF2011 is constrained by the following critical parameters:

• Output Configuration: Half bridge topology is mandatory for direct substitution
• Current Rating: Minimum 20A per channel required to maintain load-driving capability
• Supply Voltage Range: Must support 10V to 20V input to match system power architecture
• Load Voltage Range: Must accommodate 3V to 80V load switching
• Package Type: Surface mount form factor with compatible pinout and thermal characteristics
• Fault Protection: UVLO and additional protection mechanisms required for system reliability
• Compliance: ROHS3 compliance and EAR99 classification maintained

The STSPIN240 is identified as a substitute part; however, it operates under significantly different electrical constraints and is classified as a functional alternative rather than a direct pin-for-pin replacement.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution Feasibility: The STSPIN240 cannot serve as a direct pin-for-pin replacement for the FDMF2011 due to fundamental electrical incompatibilities:

• Current rating disparity: STSPIN240 provides 1.3A per channel versus FDMF2011's 20A, representing a 94.6% reduction in output current capacity
• Supply voltage mismatch: STSPIN240 operates at 0V to 5V, incompatible with the FDMF2011's 10V to 20V supply requirement
• Load voltage limitation: STSPIN240 supports only 1.8V to 10V load voltage, insufficient for the FDMF2011's 3V to 80V range

Application Context: Substitution is viable only in redesigned systems where:

• Load current requirements are reduced to 1.3A or below
• System power architecture is modified to operate within 0V to 5V supply constraints
• Load voltage is limited to 1.8V to 10V range

Compliance Status: Both devices maintain ROHS3 compliance and EAR99 classification. The STSPIN240 is active product status, ensuring ongoing availability and support compared to the obsolete FDMF2011.

Frequently Asked Questions (FAQ)

Q: Can the STSPIN240 directly replace the FDMF2011 in existing designs?

A: No. The STSPIN240 has significantly lower current capacity (1.3A vs. 20A), operates at different supply voltages (0V–5V vs. 10V–20V), and supports lower load voltages (1.8V–10V vs. 3V–80V). Direct substitution requires circuit redesign.

Q: What is the primary limitation of using STSPIN240 as an alternative?

A: Current output per channel. The STSPIN240 delivers 1.3A maximum, making it unsuitable for applications requiring the FDMF2011's 20A capability. Load current must be reassessed and reduced accordingly.

Q: Are there package compatibility considerations?

A: Yes. The FDMF2011 uses 36-PowerWFQFN (7.5x6) packaging, while the STSPIN240 uses 16-VFQFN (3x3). PCB layout and thermal management strategies must be re-evaluated for the smaller package footprint.

Q: Do both devices support PWM control?

A: The FDMF2011 explicitly supports PWM interface. The STSPIN240 specifications provided do not explicitly confirm PWM interface capability; this must be verified against the device datasheet before implementation.

Q: What compliance certifications apply to both parts?

A: Both the FDMF2011 and STSPIN240 are ROHS3 compliant, REACH unaffected, and classified under EAR99 export control. Moisture sensitivity levels differ: FDMF2011 is MSL 1 (unlimited), while STSPIN240 is MSL 3 (168 hours).

Q: Is the STSPIN240 suitable for DC motor applications?

A: The STSPIN240 is rated for DC motor and general-purpose applications; however, its 1.3A current limit restricts use to low-power motor control scenarios only.