LED1642GWPTR Integrated Circuits (ICs)

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LED Driver is a kind of device that is used to modulate and condition the output of an LED light source. It can provide a wide variety of features and can provide a constant current or voltage to drive the LED. LED Drivers, such as LED1642GWPTR, are often used for applications ranging from automotive to security / video camera lighting. In this article, we will look at the application field and working principle of the LED1642GWPTR.

The LED1642GWPTR is a multi-channel LED driver with 32 channels of LED driver power for driving up to 32 LED strings. This LED driver is suited for small, thin and bright LED string designs, such as those used in automotive and security / video camera applications. It has an integrated microcontroller and analog/digital control logic to provide easy setup, monitoring, and control functions. Additionally, the LED1642GWPTR offers externals switches and clamps to ensure safe and reliable operation.

The LED1642GWPTR operates with inputs of 18V to 36V. It is designed to operate with a wide range of LED string supply voltages (3.3V to 220V). It offers up to 1.2A of drive current per string, with a maximum output current of 16A. The LED driver features a voltage regulation loop that ensures constant current, resulting in consistent output across a wide range of operating conditions. With its integrated thermal and over-temperature protection system, the LED1642GWPTR provides an efficient solution for driving LED strings.

The LED1642GWPTR also provides over-voltage, current and temperature protection, ensuring protection of both the LEDs and the circuit. It is designed for high-efficiency operation, and its efficiency can reach up to 92%. The LED1642GWPTR also has excellent EMI immunity and can be used in noisy environments. The input range and features require minimal external components, reducing the board space required, and are suitable for space-constrained applications.

In terms of working principle, the LED1642GWPTR provides a constant current to each LED string via a voltage regulation loop. When the input voltage is changed, the LED current is automatically adjusted accordingly. The LED1642GWPTR has an adjustable switching frequency, allowing for a frequency range of 16kHz to 1MHz. This allows for faster dimming or higher power efficiency in applications where dimming control is required. Additionally, the LED1642GWPTR provides a programmable current limit protection and thermal shut down protection. This ensures safe operation and long-term system reliability.

In summary, the LED1642GWPTR is a multi-channel LED driver that provides a constant current to drive up to 32 strings of LEDs. It is designed to operate with a wide range of LED string supply voltages, with a maximum output current of 16A and a voltage regulation loop that ensures constant current output. Additionally, it features over-voltage, current, and temperature protection, as well as excellent EMI immunity, making it suitable for a wide range of applications.

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