TOP247R-TL Equivalent & Substitute Parts

Part Overview

The TOP247R-TL is an offline switch flyback converter IC from Power Integrations' TOPSwitch®-GX series, designed for isolated power supply applications. This device integrates a 700V breakdown voltage power switch with frequency control and comprehensive fault protection in a TO-263-7 surface mount package. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. For ongoing production requirements or new applications, equivalent substitute parts from the same TOPSwitch®-GX family provide compatible functionality with varying power output ratings.

Substiute Parts

TOP247R-TL

Power IntegrationsIn Stock: 1730TOP247R-TL Datasheet

Current PartRFQ

TOP243R-TL

Power IntegrationsIn Stock: 1972TOP243R-TL Datasheet

Parametric EquivalentRFQ

TOP244R-TL

Power IntegrationsIn Stock: 5329TOP244R-TL Datasheet

Parametric EquivalentRFQ

TOP245R-TL

Power IntegrationsIn Stock: 16214TOP245R-TL Datasheet

Parametric EquivalentRFQ

TOP246R-TL

Power IntegrationsIn Stock: 1842TOP246R-TL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the TOPSwitch®-GX family is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Voltage - Breakdown: 700V (all parts match)
• Topology: Flyback (all parts match)
• Output Isolation: Isolated (all parts match)
• Frequency - Switching: 66kHz ~ 132kHz (all parts match)
• Duty Cycle: 66.5% (all parts match)
• Fault Protection: Current Limiting, Over Temperature, Over Voltage (all parts match)
• Control Features: Frequency Control (all parts match)
• Operating Temperature: -40°C ~ 150°C (TJ) (all parts match)
• Package / Case: TO-263-7, D2PAK (6 Leads + Tab) (all parts match)
• Mounting Type: Surface Mount (all parts match)

Variable Parameter (Application-Dependent):

• Power (Watts): Ranges from 45W to 70W across the family

All substitute parts are from Power Integrations' TOPSwitch®-GX series and share identical electrical characteristics, protection features, and thermal specifications. The primary differentiator is the maximum power output rating, which determines suitability for specific application power requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: All parts in this family, including the TOP247R-TL and its substitutes, carry "Not For New Designs" status. This designation reflects the maturity of the TOPSwitch®-GX architecture. For applications currently using TOP247R-TL, substitute selection should be based on power output requirements within the existing design constraints.

Compliance and Certification: All substitute parts share identical RoHS non-compliance status, REACH unaffected classification, ECCN EAR99 designation, and HTSUS code 8542.39.0001. No compliance barriers exist between parts.

Packaging Consideration: TOP247R-TL, TOP246R-TL, TOP245R-TL, and TOP244R-TL are supplied in Cut Tape (CT) packaging. TOP243R-TL is supplied in Tape & Reel (TR) packaging. Packaging selection depends on production volume and assembly line requirements.

Power Rating Selection:

• TOP247R-TL (70W): Primary specification for maximum power applications
• TOP246R-TL (64W): Suitable for applications requiring 64W maximum output
• TOP245R-TL (57W): Suitable for applications requiring 57W maximum output
• TOP244R-TL (50W): Suitable for applications requiring 50W maximum output
• TOP243R-TL (45W): Suitable for applications requiring 45W maximum output

Selection of a substitute with lower power rating than the original design is not recommended. Selection of a substitute with equal or higher power rating is acceptable within the same topology and protection feature set.

Frequently Asked Questions (FAQ)

Q: Can TOP245R-TL replace TOP247R-TL in an existing design?

A: TOP245R-TL has a maximum power output of 57W compared to TOP247R-TL's 70W. Both parts share identical electrical characteristics, switching frequency, breakdown voltage, and fault protection features. Substitution is acceptable only if the application power requirement does not exceed 57W.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape packaging supplies individual parts on tape segments suitable for lower-volume assembly. Tape & Reel packaging supplies continuous reels suitable for high-volume automated assembly. Both packaging formats contain identical die and electrical performance.

Q: Are all TOPSwitch®-GX parts pin-compatible?

A: All substitute parts use the TO-263-7 package with D2PAK (6 Leads + Tab) configuration. Pin compatibility is confirmed across all listed substitutes.

Q: Why is TOP247R-TL marked "Not For New Designs"?

A: This status indicates the part has reached maturity in its product lifecycle. Existing designs using this part can continue with equivalent substitutes from the same TOPSwitch®-GX family. New power supply designs should evaluate current-generation alternatives from Power Integrations.

Q: What is the Moisture Sensitivity Level (MSL) requirement?

A: All parts carry MSL 4 rating with a 72-hour floor life requirement. This specifies handling and storage conditions to prevent moisture absorption that could cause solder joint failures during reflow assembly.

Q: Can TOP243R-TL (45W) be used in place of TOP247R-TL (70W)?

A: No. TOP243R-TL has a lower maximum power output rating. Using an undersized part in a 70W application will result in thermal stress and potential device failure. Substitute parts must have equal or higher power ratings than the original specification.