MAX16822AASA+T

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PMICs - LED Drivers form the backbone of any integrated system. These drivers provide regulated power, switch and control signals to the various sub-systems, enabling consistent performance in a variety of applications and environments. The MAX16822AASA+T is a single channel LED driver from Maxim Integrated, designed for applications with low power requirements and a wide input voltage range. It is optimized for low-power Bluetooth and other radio applications.

The MAX16822AASA+T includes both step-up and step-down boost regulators and is capable of driving LEDs with up to 8V of VF. It features an adjustable peak current limit and ripple current mode operation to ensure consistent operation. It also features low quiescent current and high efficiency, enabling it to meet the most demanding application requirements.

The MAX16822AASA+T has a wide operating range of 6V to 22V, making it suitable for a variety of input sources. It features a dynamic voltage control mode that can provide a constant LED current despite variations in the input voltage. The driver also features a dynamic current limit which reduces the LED forward current for a given input voltage to ensure a safe operating temperature. It has an adjustable LED enable/disable and turn-off current that enable it to be tailored to handle any LED load.

The MAX16822AASA+T is also capable of dimming LEDs using a variety of techniques, including pulse width modulation (PWM), analog dimming, and direct dimming. The driver features a switching frequency of up to 250KHz and a maximum duty cycle of 99%. It is also capable of dimming multiple strings of LEDs by providing up to 5 discrete programming levels.

The MAX16822AASA+T also includes a parallel diode limiter that ensures output voltage stays well below the input voltage. This can prevent damage to the system in case of a short-circuit event. It also includes over-temperature and over-current protections that prevent the LED from being damaged due to a fault.

The MAX16822AASA+T is a versatile, efficient and cost-effective LED driver for low-power applications. It is capable of driving LEDs with up to 8V of VF and includes a wide range of features and protections to ensure consistent operation in any system. The small size and wide operating range of the driver make it suitable for a range of applications, including mobile phones, wearables, medical equipment, and industrial lighting.

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