Overview
The TEA1721BT/N1118 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 flyback converter topologies and is suitable for applications up to 5 W. It operates directly from the rectified universal mains input and includes a high voltage power switch with a rating of 700 V. The device is known for its high efficiency across the entire load range and ultra-low power consumption in no-load conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Power | Up to 5 W |
| High Voltage Power Switch | 700 V |
| Burst Mode Frequency | 905 Hz |
| No-Load Power Consumption | < 20 mW at high mains input |
| Package Type | See datasheet for specific package details |
Key Features
- High-voltage start-up capability directly from rectified mains voltage without external bleeder circuits.
- Integrated 700 V MOSFET for high efficiency in flyback converter topologies.
- Ultra-low power consumption in no-load conditions.
- Optimized for low power applications up to 5 W.
- Burst mode operation at 905 Hz to minimize no-load power consumption.
Applications
The TEA1721BT/N1118 is suitable for various low-power applications, including but not limited to:
- Consumer electronics such as chargers, adapters, and small appliances.
- Industrial control systems requiring efficient power management.
- Medical devices where low power consumption is critical.
- Automotive systems needing high-efficiency power conversion.
Q & A
- What is the maximum power rating of the TEA1721BT/N1118?
The TEA1721BT/N1118 is designed for applications up to 5 W. - What is the voltage rating of the integrated MOSFET?
The integrated MOSFET has a voltage rating of 700 V. - How does the TEA1721BT/N1118 handle start-up from mains voltage?
The device can start up directly from the rectified mains voltage without any external bleeder circuits. - What is the burst mode frequency of the TEA1721BT/N1118?
The burst mode frequency is 905 Hz. - What is the no-load power consumption of the TEA1721BT/N1118?
The no-load power consumption is less than 20 mW at high mains input. - What are the typical applications for the TEA1721BT/N1118?
Typical applications include consumer electronics, industrial control systems, medical devices, and automotive systems. - Is the TEA1721BT/N1118 optimized for any specific converter topology?
Yes, it is optimized for flyback converter topologies. - Where can I find detailed specifications and documentation for the TEA1721BT/N1118?
Detailed specifications and documentation can be found on the NXP Semiconductors website and through local sales offices. - What is the significance of the 'GREENCHIP' designation for this component?
The 'GREENCHIP' designation indicates that the component is designed for high efficiency and low power consumption, aligning with green technology standards. - Can the TEA1721BT/N1118 be used in high-power applications?
No, the TEA1721BT/N1118 is specifically designed for low-power applications up to 5 W.
