TLE42403MHTSA1 Integrated Circuits (ICs)

The TLE42403MH TS A1 is a Precision Peak Current Mode Controller with a Fixed Oscillator. It is categorized as a PMIC (Power Management Integrated Circuit) and designed for LED driver applications. It uses an external sense resistor to regulate the output current and integrates a thermal shutdown function for safe thermal operation.

The TLE42403MH TSA1 utilizes an internal preset peak current threshold and an external sense resistor to regulate the output current. When the output current drops below the threshold due to a short circuit or overloading, the IC will initiate an internal fault protection (latch-off) operation, thus protecting the LED from damage.

The TLE42403MH TSA1 also has an adjustable output voltage that can be set from 20 V to 350 V. This allows it to be used in a wide range of LED driver applications such as LED lighting, LED displays, LED signage and LED backlighting. The IC also has excellent load and line regulation and accuracy, allowing it to maintain a very consistent and stable output current.

The peak current control feature of the TLE42403MH TS A1 is adjustable by replacing the sense resistor. The output current of the IC can be set by choosing a smaller or larger sense resistor. For example, a 1Ω resistor with a peak current of 30mA can be used to set an output current of 20mA. The resistor value can also be adjusted to achieve higher peak current threshold levels in order to provide robust protection at higher output current levels.

The TLE42403MH TSA1 also includes a cycling timer that is adjustable using an external resistor and capacitor. The timer determines the period between each peak current control cycle and can be optimized based on the application requirements. When the peak current control cycle is complete, the IC will restart a new cycle, allowing the output current to remain constant.

The TLE42403MH TSA1 also has a thermal shutdown function that is designed to protect the LED from thermal damage. When the IC reaches its thermal limit, it will automatically shut itself off, thus preventing any further damage to the LED. The thermal shutdown feature can be adjusted through a simple resistor value change to match the application\'s needs.

In addition, the TLE42403MH TSA1 also provides excellent line and load regulation as well as low operating noise. This allows it to be used in demanding LED lighting applications, such as general lighting, accent lighting, decorative lighting and architectural lighting.

In summary, the TLE42403MH TSA1 is an ideal LED driver IC for LED lighting applications. Its peak current control, adjustable minimum and maximum current levels, resilience to line and load variations, and ability to survive thermal damage make it an ideal solution for designs that require robust, consistent and safe LED operation. Additionally, its low operating noise and excellent line and load regulation make it an excellent choice for precision and demanding LED lighting applications.