Power Integrations TOPSwitch-HX | Power Integrations
TOPSwitch-HX series from Power Integrations
Power Integrations TOPSwitch-HX Series Overview
High-efficiency integrated flyback switcher with multi-mode operation for wide power range.
The TOPSwitch-HX from Power Integrations is a High-efficiency integrated flyback switcher with multi-mode operation for wide power range. This series includes 43 variants, each tailored for specific application requirements while sharing a common architecture and design ecosystem.
Designed for offline power conversion, the TOPSwitch-HX integrates key power components to minimize external component count, reduce board space, and simplify the design process. these devices help engineers meet increasingly stringent energy-efficiency standards while reducing time to market.
Octatronics stocks TOPSwitch-HX variants in multiple package options. Request a quote for volume pricing, check real-time availability, or contact our engineering team for application support and alternative part recommendations.
Key Features
- Highest IntegrationPrimary, secondary, and feedback circuits integrated on a single IC, reducing external component count by up to 50%.
- Up to 90W Output PowerSupports output power up to Up to 90W with excellent load and line regulation.
- Comprehensive Protection SuiteIntegrated over-voltage, over-current, over-temperature, and short-circuit protection eliminates external protection circuitry.
- Ultra-Low No-Load PowerAdvanced burst-mode operation achieves <30mW no-load power consumption, meeting the strictest standby regulations.
- Simplified Design ProcessReference designs, PI Expert design software, and application notes accelerate time-to-production.
Target Applications
- PC standby power
- Auxiliary power supplies
- Open-frame power
- Printer adapters
Compare TOPSwitch-HX Variants
Side-by-side comparison of 10 product variants from Power Integrations
| Parameter | TOP249YN | TOP247YN | TOP246YN | TOP244YN | TOP244GN-TL | TOP243YN | TOP242PN | TOP233YN | TOP227YN | TOP224YN |
|---|---|---|---|---|---|---|---|---|---|---|
| Package / Case | TO-220-7 Formed Leads, 6 Leads | TO-220-7 Formed Leads, 6 Leads | TO-220-7 Formed Leads, 6 Leads | TO-220-7 Formed Leads, 6 Leads | 8-SMD (7 Leads), Gull Wing | TO-220-7 Formed Leads, 6 Leads | 8-DIP (0.300", 7.62mm), 7 Leads | TO-220-7 Formed Leads, 5 Leads | TO-220-3 | TO-220-3 |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Control Features | Frequency Control | Frequency Control | Frequency Control | Frequency Control | Frequency Control | Frequency Control | Frequency Control | Frequency Control | - | - |
| Duty Cycle | 66.8% | 66.5% | 66.5% | 66.5% | 66.5% | 66.5% | 66.5% | 78% | 67% | 67% |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage | Current Limiting, Over Temperature, Over Voltage | Current Limiting, Over Temperature, Over Voltage | Current Limiting, Over Temperature, Over Voltage | Current Limiting, Over Temperature, Over Voltage | Current Limiting, Over Temperature, Over Voltage | Current Limiting, Over Temperature, Over Voltage | Current Limiting, Over Temperature, Over Voltage | Current Limiting, Over Temperature | Current Limiting, Over Temperature |
| Internal Switch S | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Last Time Buy | Not For New Designs | Not For New Designs |
| Output Isolation | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated |
| Power Watts | 250 W | 165 W | 125 W | 65 W | 28 W | 45 W | 15 W | 50 W | 150 W | 75 W |
| Supplier Device Package | TO-220-7C | TO-220-7C | TO-220-7C | TO-220-7C | SMD-8B | TO-220-7C | 8-PDIP-B | TO-220-7B | TO-220-3 | TO-220-3 |
| Switching Frequency | 66kHz ~ 132kHz | 66kHz ~ 132kHz | 66kHz ~ 132kHz | 66kHz ~ 132kHz | 66kHz ~ 132kHz | 66kHz ~ 132kHz | 66kHz ~ 132kHz | 66kHz ~ 132kHz | 100kHz | 100kHz |
| Topology | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Boost, Buck, Flyback, Forward | Boost, Buck, Flyback, Forward |
| Voltage Breakdown | 700V | 700V | 700V | 700V | 700V | 700V | 700V | 700V | 700V | 700V |
| Datasheet | - | - | - | - | - | |||||
| Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote |
Selection Guide
Package
TO-220-7 Formed Leads, 6 Leads→TOP249YNTOP247YNTOP246YNTOP244YNTOP243YN
8-SMD (7 Leads), Gull Wing→TOP244GN-TL
8-DIP (0.300", 7.62mm), 7 Leads→TOP242PN
TO-220-7 Formed Leads, 5 Leads→TOP233YN
TO-220-3→TOP227YNTOP224YN
TOPSwitch-HX Series Applications
⚡
Energy & PowerPower conversion and protection components for solar, storage, charging, and industrial power.
⚡
EV & PowertrainTraction inverter, OBC, and high-voltage conversion devices.
⚡
Solar InvertersHigh-efficiency power conversion devices for photovoltaic inverters.
🚗
Automotive Power ManagementModule power and load-control devices.
Technical Specifications
Compare key TOPSwitch-HX specifications across available variants. All parameters are typical values at 25 degC unless otherwise noted.
Power Specifications
Output Power
Up to 90W
Input Voltage Range
85–265 VAC (universal input)
Peak Efficiency
>90%
No-Load Power
<30 mW
Safety & Compliance
Safety Certifications
UL, IEC 62368-1
EMI Standard
EN 55032 Class B
Energy Star
CoC Tier 2 / DoE Level VI compliant
Frequently Asked Questions
Common technical questions about the TOPSwitch-HX series.
The TOPSwitch-HX is a Power Integrations High-efficiency integrated flyback switcher with multi-mode operation for wide power range. The series includes 43 variants optimized for different application requirements.
The TOPSwitch-HX series currently includes 43 variants. Each variant may differ in package type, operating specifications, and feature set. Browse the product table above to compare available options.
The TOPSwitch-HX series is used in PC standby power, Auxiliary power supplies, Open-frame power, and Printer adapters. Contact our applications team for design-in support and recommendation.
Octatronics is an authorized distributor of Power Integrations products including the TOPSwitch-HX series. We provide competitive pricing, fast delivery, and full traceability for all components. Request a quote or contact us for availability and lead times.
Yes, Octatronics supports both prototype and production quantities for the TOPSwitch-HX series. Small-quantity orders are available for design evaluation, with volume pricing for production runs. Contact our sales team for custom pricing.