Description
Switcher IC TOP245YN (3PCS) — TOP245YN Power Integrations AC/DC Off-Line Switcher IC
Key Product Highlights & Features:
- Guaranteed Compatibility: Engineered to exact OEM specifications for OEM / Universal and compatible inverter equipment.
- Pre-Tested Reliability: Rigorously inspected by ACPCB for thermal resilience, voltage stability, and signal integrity.
- Durable PCB Construction: Manufactured with high-grade fiberglass FR-4 substrate and anti-corrosive coating for prolonged lifespan.
- Direct Drop-in Replacement: Standardized pinouts and mounting holes for rapid, hassle-free installation.
- Technical Support: Backed by dedicated ACPCB inverter AC troubleshooting guidance and verified pinout records.
Technical Specifications
| It belongs to TOP Switch-GX Family from the manufacturer “Power Integrations”. It is with Extended Power, Design Flexiblity, Eco Smart & Integrated Off-line Switcher. TOP Switch-GX uses the same proven topology as TOP Switch, cost effectively integrating the high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip. Many new functions are integrated to reduce system cost and improve design flexibility, performance and energy efficiency. Depending on package type, either 1 or 3 additional pins over the TOP Switch standard DRAIN, SOURCE and CONTROL terminals allow the following functions | line sensing (OV/UV, line feed-forward/DCMAX reduction), accurate externally set current limit, remote ON/OFF, synchronization to an external lower frequency, and frequency selection (132 kHz/66 kHz). All package types provide the following transparent features: Soft-start, 132 kHz switching frequency (automatically reduced at light load), frequency jittering for lower EMI, wider DCMAX, hysteretic thermal shutdown, and larger creepage packages. In addition, all critical parameters (i.e. current limit, frequency, PWM gain) have tighter temperature and absolute tolerances to simplify design and optimize system cost. Features:- Lower System Cost, High Design Flexibility Extended power range for higher power applications No heatsink required up to 34 W using P/G packages Features eliminate or reduce cost of external components Fully integrated soft-start for minimum stress/overshoot Externally programmable accurate current limit Wider duty cycle for more power, smaller input capacitor Separate line sense and current limit pins on Y/R/F packages Line under-voltage (UV) detection: no turn off glitches Line overvoltage (OV) shutdown extends line surge limit Line feed-forward with maximum duty cycle (DCMAX) reduction rejects line ripple and limits DCMAX at high line |
|---|---|
| Product Type | Switcher IC |
| Compatible Brand | OEM / Universal |
| Condition | 100% Brand New & Factory Tested |
| Quality Standard | OEM Industrial Standard / RoHS Compliant |
| Testing Certification | QC Passed – Voltage & Current Load Tested |
Professional Installation Guidelines:
1. Always disconnect the main power supply and discharge high-voltage DC filter capacitors before handling or replacing electronic boards.
2. Ensure uniform application of premium thermal conductive paste between heatsinks and power semiconductor modules (IPM/IGBT).
3. Verify wiring harness connections against terminal labels prior to powering on the system.
Package Contents:
• 1 x Switcher IC TOP245YN (3PCS)
• Protective ESD anti-static bubble packaging & safety outer box from ACPCB.
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