Overview
The TEA1723AT/N1,118 is a Switched Mode Power Supply (SMPS) controller IC designed by NXP USA Inc. for low-power applications up to 11 watts. This controller operates directly from the rectified universal mains input, making it highly versatile for global use. It integrates a high-voltage power switch (700 V) and is optimized for flyback converter topologies, ensuring high efficiency across the entire load range and ultra-low power consumption in no-load conditions. The device simplifies design by using primary-side sensing to control the output voltage, eliminating the need for additional secondary feedback circuitry.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | - | - | 35 | V |
| Supply Current | - | - | 970 | µA |
| Frequency | - | - | 53 kHz | - |
| Topology | - | - | Flyback | - |
| Duty Cycle | 72% | - | 78% | - |
| Operating Temperature Range | -40°C | - | +85°C | - |
| Storage Temperature Range | -55°C | - | +150°C | - |
| Package Style | - | - | SOIC-7 | - |
| Mounting Method | - | - | Surface Mount | - |
| Drain-Source On-State Resistance (RDSon) | 3.5 | - | 6 | Ω |
| Drain-Source Breakdown Voltage (V(BR)DS) | 700 | - | - | V |
Key Features
- Low power SMPS controller with integrated 700 V high voltage power switch for global mains operation.
- Primary sensing for control of the output voltage without optocoupler and secondary feedback circuitry.
- Minimizes audible noise in all operation modes and includes a jitter function for reduced EMI.
- Energy Star 2.0 compliant and enables no-load power consumption below 12 mW.
- Very low supply current in no-load condition with energy saver mode and high voltage start-up circuit with zero current consumption under normal switching operation.
- Available in halogen-free and RoHS compliant SO7 package.
- Protective functions include OverVoltage Protection (OVP), UnderVoltage LockOut (UVLO), OverTemperature Protection (OTP), soft-start, demagnetization protection, and open and short-circuit protection of the Feedback control (FB) pin.
Applications
The TEA1723AT/N1,118 is suitable for a variety of low-power applications, including but not limited to:
- Consumer electronics such as chargers, adapters, and small appliances.
- Industrial power supplies for low-power devices.
- LED drivers and lighting systems.
- Medical devices requiring efficient and reliable power supply.
Q & A
- What is the maximum power output of the TEA1723AT/N1,118? The maximum power output is up to 11 watts.
- What is the voltage rating of the integrated power switch? The integrated power switch is rated at 700 V.
- How does the TEA1723AT/N1,118 control the output voltage? It uses primary-side sensing to control the output voltage, eliminating the need for an additional secondary feedback circuitry.
- What is the no-load power consumption of the TEA1723AT/N1,118? The no-load power consumption is below 12 mW at 230 V (AC) mains input.
- Is the TEA1723AT/N1,118 compliant with Energy Star 2.0? Yes, it is Energy Star 2.0 compliant.
- What protective functions does the TEA1723AT/N1,118 include? It includes OverVoltage Protection (OVP), UnderVoltage LockOut (UVLO), OverTemperature Protection (OTP), soft-start, demagnetization protection, and open and short-circuit protection of the Feedback control (FB) pin.
- What is the operating temperature range of the TEA1723AT/N1,118? The operating temperature range is from -40°C to +85°C.
- What is the storage temperature range of the TEA1723AT/N1,118? The storage temperature range is from -55°C to +150°C.
- What package style and mounting method does the TEA1723AT/N1,118 use? It uses an SOIC-7 package with surface mount technology.
- How does the TEA1723AT/N1,118 minimize audible noise? It operates in burst mode at low power levels and no-load conditions, minimizing audible noise and reducing power consumption).
