TOP245YN Offline AC-DC Power Conversion 5.85v 1.5mA IC TO-220-7C
The TOP245YN is a highly integrated offline switch-mode power supply (SMPS) IC designed to simplify the design of AC-DC converters. It combines a high-voltage power MOSFET, PWM controller, oscillator, and protection circuitry into a single compact package, making it ideal for efficient and reliable power supply designs. This integration significantly reduces external component count and overall system complexity.
This IC operates using flyback topology and is widely used in low to medium power applications requiring stable and efficient DC output from AC mains. With built-in protection features such as thermal shutdown, current limiting, and auto-restart, the TOP245YN ensures safe and robust operation under various load and fault conditions. It is well-suited for compact, cost-effective designs in consumer electronics and industrial applications.
Features:
- Integrated high-voltage power MOSFET.
- Built-in PWM controller.
- Minimal external components required.
- High efficiency operation.
- Auto-restart protection for fault conditions.
- Thermal shutdown protection.
- Current limiting functionality.
- Supports flyback converter topology.
- Compact and reliable design.
- Reduced EMI with optimized switching.
Specifications:
| Parameter | Value |
|---|---|
| IC Model | TOP245YN |
| Type | AC-DC Converter IC |
| Topology | Flyback |
| Switching Frequency | 66 kHz – 132 kHz |
| Output Power Range | Up to ~60W |
| Package Type | TO-220 |
| Mounting Type | Through Hole |
| Control Method | PWM |
| Protection Features | Thermal, Overcurrent, Auto-Restart |
Pinout:
| Pin | Name | Notes |
|---|---|---|
| 1 | C | |
| 2 | L | |
| 3 | X | |
| 4 | S (SOURCE) | Internally connected to tab |
| 5 | F | |
| 6 | NC | Not specified in source |
| 7 | D |
Applications:
- AC-DC power supplies.
- Battery chargers.
- Adapters and SMPS circuits.
- LED drivers.
- Consumer electronics power systems.
- Industrial power supplies.
- Standby power supplies.
Packages Included:
- 1x TOP245YN Offline AC-DC Power Conversion 5.85v 1.5mA IC TO-220-7C.