ZXLD1321DCATC Integrated Circuits (ICs)

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The ZXLD1321D CATC is a cost-effective, low–voltage current mode Pre-Driver for driving high power LEDs in a variety of automotive and industrial applications. This device is a highly integrated controller with a built-in buck regulator and a variety of other features that simplify system design and integration. The ZXLD1321D CATC is an ideal solution for driving large arrays of LEDs, as it allows fast switching of the output current with low voltage drop across the switch. Additionally, the device features a wide range of regulation modes that can be used to efficiently control the brightness of the LEDs.

Application Field of ZXLD1321D CATC

The ZXLD1321D CATC is a versatile LED driver that can be used in a variety of high power applications, including automotive lighting systems, industrial lighting, architectural lighting, and LED signs. The device is well-suited for applications requiring high power efficiency and low total power consumption, as it uses a wide range of regulating modes to optimally control the current output of the system. Additionally, the device can be used to power large LED arrays, such as those found on vehicle headlights, building façades, and billboards.

Working Principle of ZXLD1321D CATC

The ZXLD1321D CATC is based on a current-mode converter topology. The converter operates in a quasi-resonant (QR) mode, meaning that the inductor current is automatically maintained around a predefined average level and switched at a frequency determined by the inputs. In order to optimize the voltage transfer characteristics, a minimum number of components are incorporated in the design, allowing optimal efficiency and power levels to be achieved.

The ZXLD1321D CATC operates in one of two regulating modes: cycle-by-cycle current-regulation (CBCR) or voltage-mode regulation (VMR). In CBCR mode, the device uses feedback circuitry to sense the output current and ensure that it is maintained within an acceptable range. In VMR mode, the device uses a built-in regulator to ensure that the output voltage is maintained within a certain range. The onboard flexible switching frequency allows the device to operate in a wide range of applications, and the built-in feed-forward compensation and noise-rejecting features help ensure optimal system performance over a wide range of conditions.

Conclusion

The ZXLD1321D CATC is a cost-effective and highly integrated current mode Pre-Driver for driving high power LEDs in a variety of automotive and industrial applications. The device offers a wide range of regulating modes, allowing it to efficiently control the brightness of the LEDs and power large LED arrays. Additionally, the device features a wide range of switching frequencies and a built-in feed-forward compensation and noise-rejecting features, making it an ideal choice for maximizing system efficiency and power levels.

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