TOP223G-TL Equivalent & Substitute Parts

Part Overview

The TOP223G-TL is an offline switch IC from Power Integrations' TOPSwitch®-II series, designed for isolated power conversion applications. This component functions as a controller and power switch in boost, buck, flyback, and forward converter topologies with 100kHz switching frequency and 25W power handling capability. The TOP223G-TL is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and production continuity. Equivalent parts within the TOPSwitch®-II family provide functional alternatives with matching electrical characteristics and package compatibility.

Substiute Parts

TOP223G-TL

Power IntegrationsIn Stock: 2246TOP223G-TL Datasheet

Current PartRFQ

TOP221GN-TL

Power IntegrationsIn Stock: 10339TOP221GN-TL Datasheet

Parametric EquivalentRFQ

TOP222GN-TL

Power IntegrationsIn Stock: 8808TOP222GN-TL Datasheet

Parametric EquivalentRFQ

TOP223GN-TL

Power IntegrationsIn Stock: 4469TOP223GN-TL Datasheet

Parametric EquivalentRFQ

TOP224GN-TL

Power IntegrationsIn Stock: 16688TOP224GN-TL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TOP223G-TL is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - Breakdown: 700V
• Topology: Boost, Buck, Flyback, Forward
• Frequency - Switching: 100kHz
• Duty Cycle: 67%
• Output Isolation: Isolated
• Internal Switch(s): Yes
• Fault Protection: Current Limiting, Over Temperature
• Operating Temperature: -40°C ~ 150°C (TJ)
• Package / Case: 8-SMD, Gull Wing
• Mounting Type: Surface Mount
• Series: TOPSwitch®-II

Power Rating Consideration: The TOP223G-TL operates at 25W. Substitute parts are grouped by power rating: TOP221GN-TL (9W), TOP222GN-TL (15W), TOP223GN-TL (25W), and TOP224GN-TL (30W). Selection depends on application power requirements.

Packaging Variation: The main part TOP223G-TL uses standard packaging. Substitute TOP223GN-TL is supplied in Tape & Reel (TR) format, suitable for automated assembly processes.

Compliance Status: TOP223G-TL is RoHS non-compliant. Substitute TOP223GN-TL is RoHS Compliant, providing regulatory advantage for new designs.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (25W Application): TOP223GN-TL is the direct functional equivalent to TOP223G-TL. Both operate at 25W power rating with identical electrical specifications. TOP223GN-TL provides RoHS Compliance advantage and is supplied in Tape & Reel format for automated assembly. Product status is "Not For New Designs," indicating mature technology with stable supply.

Power Rating Alternatives:

• TOP221GN-TL (9W): For applications requiring lower power output
• TOP222GN-TL (15W): For applications requiring intermediate power output
• TOP224GN-TL (30W): For applications requiring higher power output

All alternatives maintain identical switching frequency, topology support, voltage rating, and thermal operating range. Selection among these variants depends solely on application power requirements.

Compliance Consideration: TOP223G-TL is RoHS non-compliant. All substitute parts (TOP221GN-TL, TOP222GN-TL, TOP223GN-TL, TOP224GN-TL) are RoHS Compliant, meeting current regulatory requirements for electronic components in restricted substance directives.

Packaging Format: TOP223G-TL uses standard packaging. Substitute parts are supplied in Tape & Reel (TR) format, optimized for high-volume automated assembly and pick-and-place operations.

Frequently Asked Questions (FAQ)

Q: Can TOP223GN-TL directly replace TOP223G-TL in existing designs? A: Yes. TOP223GN-TL is electrically and mechanically equivalent to TOP223G-TL. Both operate at 25W with identical 700V breakdown voltage, 100kHz switching frequency, 67% duty cycle, and 8-SMD gull wing package. The primary differences are RoHS compliance status and packaging format (Tape & Reel).

Q: What determines whether TOP221GN-TL, TOP222GN-TL, or TOP224GN-TL can substitute for TOP223G-TL? A: Power rating is the determining factor. TOP223G-TL operates at 25W. TOP221GN-TL (9W), TOP222GN-TL (15W), and TOP224GN-TL (30W) are suitable only if application power requirements match their respective ratings. All other electrical parameters remain identical across the series.

Q: Are all substitute parts compatible with the same PCB layout? A: Yes. All substitute parts use identical 8-SMD gull wing package with surface mount configuration. PCB footprints and land patterns are compatible across TOP221GN-TL, TOP222GN-TL, TOP223GN-TL, and TOP224GN-TL.

Q: What is the significance of "Not For New Designs" product status? A: This status indicates the component is mature and stable but not recommended for new product development. For existing production lines or legacy system support, these parts remain fully functional and available. For new designs, Power Integrations may offer newer alternatives outside the TOPSwitch®-II series.

Q: Does Tape & Reel packaging affect electrical performance? A: No. Tape & Reel is a supply format for automated assembly. Electrical specifications, performance characteristics, and reliability are identical to standard packaging formats.

Q: Are all substitute parts available in equivalent inventory quantities? A: Inventory levels vary. TOP224GN-TL has highest availability (16,600 Pcs), followed by TOP221GN-TL (10,300 Pcs), TOP222GN-TL (8,721 Pcs), and TOP223GN-TL (4,400 Pcs). Verify current stock with supplier for production requirements.

Q: What is the operating temperature range for all substitute parts? A: All parts operate across -40°C to 150°C junction temperature (TJ), providing identical thermal performance across the entire TOPSwitch®-II family.

Q: Is RoHS compliance mandatory for substitute selection? A: RoHS compliance depends on application and regional requirements. TOP223G-TL is non-compliant; all substitutes are compliant. For applications subject to RoHS directives, compliant parts are required.