APR34709SP-13 Equivalent & Substitute Parts

Part Overview

The APR34709SP-13 is a Power Supply Controller designed for secondary-side synchronous rectifier applications. Manufactured by Diodes Incorporated, this 8-SO-EP packaged IC operates with a supply voltage range of 3.3V to 16V and a maximum supply current of 150 µA. The device is classified as Obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

APR34709SP-13

Diodes IncorporatedIn Stock: 890APR34709SP-13 Datasheet

Current PartRFQ

APR34910S-13

Diodes IncorporatedIn Stock: 4640APR34910S-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the APR34709SP-13 is based on the following critical parameters:

• Functional Application: Secondary-side controller and synchronous rectifier functionality
• Package Type: 8-SOIC surface mount configuration with compatible pinout
• Operating Temperature Range: -40°C to 85°C
• Supply Voltage Range: 3.3V to 16V compatibility
• Compliance Standards: ROHS3 compliance and MSL rating consistency
• Manufacturer: Diodes Incorporated product line continuity

The APR34910S-13 meets these substitution criteria as an active product from the same manufacturer within the same functional category and package family.

Parameter Comparison

Engineering Selection Recommendations

The APR34910S-13 is the designated manufacturer substitute for the obsolete APR34709SP-13. Both devices maintain identical operating temperature ranges, equivalent RoHS3 compliance status, and matching MSL ratings. The APR34910S-13 is currently in active production status, ensuring long-term availability and supply chain continuity.

The APR34910S-13 operates at a marginally higher supply current specification (190 µA versus 150 µA), which remains within acceptable design margins for secondary-side controller applications. Both components share the same 8-SOIC package footprint and are suitable for direct PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the APR34910S-13 directly replace the APR34709SP-13 in existing designs?

A: Yes. Both devices share identical operating temperature ranges (-40°C to 85°C), equivalent package footprints (8-SOIC), and matching compliance certifications (ROHS3, MSL 3). The pinout compatibility and functional application alignment support direct substitution.

Q: What is the significance of the higher supply current in the APR34910S-13?

A: The APR34910S-13 specifies 190 µA maximum supply current compared to 150 µA for the APR34709SP-13. This represents a 40 µA increase and should be evaluated within the context of overall system power budgets. For secondary-side controller applications, this difference is typically non-critical.

Q: Are there packaging differences between these two parts?

A: The APR34709SP-13 features an exposed pad variant (8-SO-EP), while the APR34910S-13 uses standard 8-SO packaging. Both maintain the same 8-SOIC (0.154", 3.90mm Width) footprint. The exposed pad on the original part provides enhanced thermal performance; designs relying on this feature should evaluate thermal requirements independently.

Q: Why is the APR34709SP-13 listed as obsolete?

A: Product obsolescence reflects manufacturer discontinuation decisions. The APR34910S-13 represents the active product line continuation from Diodes Incorporated for this functional category.

Q: What packaging formats are available for the substitute part?

A: The APR34910S-13 is supplied in Tape & Reel (TR) format at 4K reel quantities, standard for high-volume production environments. The original APR34709SP-13 was available in bulk packaging.