Overview
The TEA1522T/N2,518 is a Switched Mode Power Supply (SMPS) controller IC developed by NXP USA Inc. This component is part of the TEA152x family, designed for low-power systems and operates directly from the rectified universal mains. It is particularly suited for applications requiring efficient and reliable power conversion.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Vdrain voltage on pin DRAIN | Tj > 0 °C | -0.4 | - | 650 | V |
| RDSon drain-source on-state resistance | Isource = −0.25 A, Tj = 25 °C | 12 | 13.8 | 17 | Ω |
| VCC supply voltage continuous | - | -0.4 | - | 40 | V |
| fosc oscillator frequency | - | 10 | 100 | 200 | kHz |
| Idrain current on pin DRAIN | Vdrain > 60 V; no auxiliary supply | - | 1.5 | 2 | mA |
| Operating supply current normal operation | - | - | 1.3 | 1.9 | mA |
| Start-up supply current | Start-up | - | 180 | 400 | μA |
| Maximum duty cycle | f = 100 kHz | - | - | 75 | % |
| Output Power | - | - | - | 30 | W |
Key Features
- Universal Mains Operation: The TEA1522T/N2,518 operates directly from the rectified universal mains, making it versatile for various power supply applications.
- Efficient Switching: It supports switching frequencies from 10 kHz to 200 kHz, allowing for efficient power conversion.
- Protection Features: Includes current and short-circuit winding protection, as well as valley switching and demagnetization detection for reliable operation.
- Low Power Consumption: The IC has a low operating supply current, making it suitable for low-power systems.
- Compact Package: Available in a 14-SO (Small Outline) package, which is compact and suitable for space-constrained designs.
Applications
- Low-Power SMPS: Ideal for low-power switched-mode power supply applications, such as those found in consumer electronics, industrial control systems, and medical devices.
- Universal Power Adapters: Suitable for universal power adapters that need to operate across a wide range of input voltages.
- LED Drivers: Can be used in LED driver applications where efficient and reliable power conversion is required.
- Automotive Systems: Applicable in automotive systems that require robust and efficient power supply solutions.
Q & A
- What is the maximum output power of the TEA1522T/N2,518?
The maximum output power is 30 W.
- What is the operating voltage range for the VCC supply?
The VCC supply voltage range is from 7.5 V to 40 V.
- What are the supported switching frequencies?
The supported switching frequencies range from 10 kHz to 200 kHz.
- Does the TEA1522T/N2,518 have built-in protection features?
Yes, it includes current and short-circuit winding protection, valley switching, and demagnetization detection.
- What is the typical operating supply current?
The typical operating supply current is 1.3 mA to 1.9 mA.
- What is the maximum duty cycle at 100 kHz switching frequency?
The maximum duty cycle at 100 kHz is 75%.
- What is the package type for the TEA1522T/N2,518?
The package type is 14-SO (Small Outline).
- What is the drain-source on-state resistance at 25°C?
The drain-source on-state resistance at 25°C is 12 Ω to 13.8 Ω.
- Does the IC support valley switching?
Yes, it supports valley switching with a valley recognition voltage change and ringing frequency for valley switching.
- What is the breakdown voltage on the DRAIN pin?
The breakdown voltage on the DRAIN pin is 650 V.
