TOP204YAI Three-terminal Off-line PWM Switch 5.8V 1.4mA TO-220/3 (YO3A)
The TOP204YAI is an advanced three-terminal off-line PWM switch from the TOPS witch-II family, designed to simplify the design of switched-mode power supplies by integrating a high-voltage MOSFET, PWM controller, and protection features into a single device. This integration significantly reduces external component count, making it ideal for compact and cost-effective AC-DC converters.
This device operates using pulse-width modulation to deliver efficient and stable power conversion while maintaining excellent performance across varying load conditions. It includes built-in safety mechanisms such as thermal shutdown, current limiting, and auto-restart, ensuring reliable operation even under fault conditions. Its TO-220 package provides effective heat dissipation, making it suitable for higher power designs in consumer and industrial applications.
Features:
- Integrated high-voltage power MOSFET.
- Built-in PWM controller.
- Three-terminal design for simple implementation.
- High efficiency power conversion.
- Auto-restart protection.
- Thermal shutdown protection.
- Current limiting and fault protection.
- Reduced external component requirement.
Specifications:
| Parameter | Value |
|---|---|
| Output Voltage | 5.8 V |
| Output Current | 1.4 A |
| Input Voltage Range | Up to 700 V |
| Switching Frequency | ~100 kHz |
| Control Method | PWM |
| Package Type | TO-220-3 |
| Operating Temperature | -40°C to +150°C |
Pinout:
| Pin | Name | Description |
|---|---|---|
| 1 | Control | Feedback and control input |
| 2 | Drain | High-voltage input |
| 3 | Source | Ground reference |
Applications:
- AC-DC power supplies.
- Battery chargers.
- Switched-mode power supplies (SMPS).
- Adapters.
- Standby power systems.
- Consumer electronics power circuits.
Package Included:
- 1x TOP204YAI Three-terminal Off-line PWM Switch 5.8V 1.4mA TO-220/3 (YO3A).
