Overview
The TEA1721AT/N1,118 is a high-voltage start-up flyback controller integrated with a MOSFET, designed by NXP USA Inc. for low-power Switched Mode Power Supply (SMPS) applications. This controller is optimized for 5W applications and operates directly from the rectified universal mains voltage, making it suitable for a variety of AC-DC conversion needs. The TEA1721AT is known for its small footprint and low cost, making it an attractive option for designers looking to minimize space and reduce overall system costs.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 8-SOIC (0.154, 3.90mm Width), 7 Leads |
| Pin Count | 7 |
| JESD-30 Code | R-PDSO-G7 |
| Voltage - Supply (Vcc/Vdd) | 8.5V~35V |
| Internal Switch(s) | Yes |
| Fault Protection | Over Temperature, Over Voltage, Short Circuit |
| Duty Cycle | 75% |
| Voltage - Breakdown | 700V |
| Operating Frequency | 22.5kHz~50.5kHz |
| Power Rating | 5W |
Key Features
- Integrated MOSFET for high-voltage start-up flyback control
- Operates directly from rectified universal mains voltage
- Small footprint and low cost
- Internal fault protection including over temperature, over voltage, and short circuit
- High breakdown voltage of 700V
- Operating frequency range of 22.5kHz to 50.5kHz
- Suitable for 5W applications
Applications
The TEA1721AT/N1,118 is suitable for various low-power AC-DC conversion applications, including:
- Consumer electronics such as chargers and adapters
- Industrial control systems requiring low-power SMPS solutions
- Automotive systems where space and cost are critical
- Medical devices needing reliable and efficient power supply
Q & A
- What is the primary function of the TEA1721AT/N1,118? The TEA1721AT/N1,118 is a high-voltage start-up flyback controller integrated with a MOSFET for low-power SMPS applications.
- What is the operating voltage range of the TEA1721AT/N1,118? The operating voltage range is 8.5V to 35V.
- What type of package does the TEA1721AT/N1,118 come in? It comes in an 8-SOIC package with 7 leads.
- What is the breakdown voltage of the TEA1721AT/N1,118? The breakdown voltage is 700V.
- Does the TEA1721AT/N1,118 have internal fault protection? Yes, it includes over temperature, over voltage, and short circuit protection.
- What is the typical operating frequency range of the TEA1721AT/N1,118? The operating frequency range is 22.5kHz to 50.5kHz.
- What is the power rating of the TEA1721AT/N1,118? The power rating is 5W.
- What are some common applications for the TEA1721AT/N1,118? Common applications include consumer electronics, industrial control systems, automotive systems, and medical devices.
- Is the TEA1721AT/N1,118 suitable for high-power applications? No, it is designed for low-power applications up to 5W.
- Where can I find detailed specifications for the TEA1721AT/N1,118? Detailed specifications can be found in the datasheet available on NXP's official website and other electronic component distributors like Digi-Key and Farnell.
