LP5522TM/NOPB Integrated Circuits (ICs)

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LP5522TM/NOPB is a Linear Technology LED driver designed for general purpose applications. It is a 2 channels, type 2 LEDs driver for an automotive, stationary, or device specific application. It offers an embedded power management counterpart: the LAP5229A/NOPB. The LP5522TM/NOPB can operate from an input voltage of 1.5V to 5V and can drive up to six LEDs at 450 mA per channel with controlled current. It features a PWM dimming of up to 255 steps, programmable LED current over temperature, and adjustable LED current to LED.

LP5522TM/NOPB is classified as PMIC - LED Drivers, because it provides the ability to drive two channels of LEDs using Pulse-width Modulation (PWM). This type of driver typically has two distinct elements, the control logic and the power section. The control logic section typically interfaces with a microcontroller or other system. This section is responsible for providing the logic to control the power section. The power section is typically a switching type converter and is responsible for dimming and setting the current levels of the LEDs.

LP5522TM/NOPB is designed for higher end applications. It can be used with long life, high brightness LEDs and is highly efficient for driving LEDs. It has a high switching frequency of 8 MHz which makes it suitable for applications with high frequency operation. The adjustable LED current is one of its main features, which increases the lifetime of LEDs and reduces power consumption. It also has a wide range of temperature range from -40°C to +85°C which makes it suitable to use in different environmental conditions.

LP5522TM/NOPB has a step-down converter that provides regulated current to the LEDs. The device has two channels, each one with its own integrated switch. The current is adjusted by using a high side current setting resistor, and the device also includes two comparators to detect over temperature conditions. The device can be configured to operate in either constant current or PWM mode, through the ENM2 pin. The device provides high-density LEDs brightening and driving power.

Overall, LP5522TM/NOPB is a high performance LED driver designed for lighting or dimming applications. It is designed for higher end applications, with a high switching frequency and adjustable LED current. It is also highly efficient for driving LEDs and can operate over a wide range of temperatures. This LED driver can be used to brighten or dim lights in any environment that requires reliable, efficient operation with controlled current.

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