CS5101EDWR16 Equivalent & Substitute Parts

Part Overview

The CS5101EDWR16 is a secondary-side controller IC manufactured by onsemi, designed for power supply applications. This 16-SOIC surface-mount device operates with a supply voltage range of 8V to 45V and a supply current of 12 mA, serving as a power management controller in secondary-side power supply configurations. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

CS5101EDWR16

onsemiIn Stock: 5239CS5101EDWR16 Datasheet

Current PartRFQ

TS19340CS14 RLG

Taiwan Semiconductor CorporationIn Stock: 35351TS19340CS14 RLG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The TS19340CS14 RLG has been identified as a functionally equivalent substitute based on the following criteria:

Functional Equivalence: Both parts serve as secondary-side controllers in power supply applications, fulfilling the same role within power management circuits.

Operating Temperature Range: Both parts operate across the identical temperature range of -40°C to 85°C, ensuring thermal compatibility in equivalent applications.

Surface Mount Technology: Both parts utilize surface-mount packaging, maintaining compatibility with modern PCB assembly processes.

Supply Voltage Compatibility: The TS19340CS14 RLG operates at 38V supply voltage, which falls within the upper operational range of the CS5101EDWR16 (8V ~ 45V), allowing substitution in applications operating at this voltage level.

Packaging Consideration: While the CS5101EDWR16 uses a 16-SOIC package and the TS19340CS14 RLG uses a 14-SOP package, both are industry-standard surface-mount packages with compatible pin pitch and footprint characteristics for secondary-side controller applications.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement: Both the CS5101EDWR16 and TS19340CS14 RLG are classified as obsolete products. Selection between these parts should be based on current inventory availability and application-specific requirements.

Regulatory Compliance Consideration: The TS19340CS14 RLG carries ROHS3 compliance certification, whereas the CS5101EDWR16 is RoHS non-compliant. Applications subject to RoHS regulations should prioritize the TS19340CS14 RLG.

Moisture Handling: The CS5101EDWR16 features MSL 1 (unlimited moisture sensitivity level), providing greater flexibility in storage and handling. The TS19340CS14 RLG requires MSL 3 compliance (168-hour limit), necessitating controlled storage conditions.

Supply Current Profile: The TS19340CS14 RLG operates at significantly lower supply current (400 µA) compared to the CS5101EDWR16 (12 mA), which may influence power budget calculations in battery-powered or low-power applications.

Frequently Asked Questions (FAQ)

Q: Can the TS19340CS14 RLG directly replace the CS5101EDWR16 in all applications?

A: Functional substitution is valid for secondary-side controller applications operating at 38V supply voltage. However, package differences (16-SOIC versus 14-SOP) require PCB layout modifications. Applications requiring the full 8V to 45V supply voltage range of the original part may not be compatible with the TS19340CS14 RLG, which operates at fixed 38V.

Q: What are the packaging implications of switching from 16-SOIC to 14-SOP?

A: Both packages are industry-standard surface-mount formats with compatible pin pitch. PCB footprint redesign is required, as the 14-SOP package has a narrower width (3.90mm) compared to the 16-SOIC (7.50mm). Assembly process compatibility remains equivalent for modern pick-and-place equipment.

Q: Are there compliance differences between these parts?

A: Yes. The TS19340CS14 RLG is ROHS3 compliant, while the CS5101EDWR16 is RoHS non-compliant. For applications in regulated markets requiring RoHS compliance, the TS19340CS14 RLG is the appropriate selection. Both parts are REACH unaffected.

Q: What is the significance of the MSL rating difference?

A: The CS5101EDWR16 has MSL 1 (unlimited), allowing indefinite storage without moisture absorption concerns. The TS19340CS14 RLG has MSL 3 (168 hours), requiring controlled humidity storage and baking procedures if storage limits are exceeded. This affects supply chain handling and inventory management protocols.

Q: How do the supply current specifications affect circuit design?

A: The TS19340CS14 RLG draws 400 µA compared to the CS5101EDWR16's 12 mA. This 30-fold reduction in supply current may improve overall power efficiency in the secondary-side controller circuit, particularly in low-power applications. Design verification is necessary to confirm functional equivalence in the specific application context.