MAX16823ATE/V+

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The MAX16823ATE/V+ is a Charge-Pump and Switching White-LED Driver from Maxim Integrated. It is suitable for usage in both mobile and consumer devices, specifically for tasks that require color displays, such as digital watches, PDAs and mobile phones.The MAX16823ATE/V+ is categorized as PMIC- LED Drivers and has a wide range of applications.It enables compact and efficient LED drive, automatic light regulation and dimming, and can be used to drive multiple LEDs from a single supply.

Design of the MAX16823ATE/V+

The MAX16823ATE/V+ is a charge-pump switching white LED driver.It includes two high-side switches, two current sources, a boost converter, and a charge pump circuit. The LEDs are driven by a DC voltage and current, which are generated by the boost converter and the charge pump circuit. The two current sources, which source and sink the LED current, provide LED brightness control.An LED current setting resistor can be used to sense the LED current.

The MAX16823ATE/V+ supports two-wire control modes, PWM and I²C. In I²C control mode, the device supports up to 9 bits of resolution for fine control of LED brightness.It also supports indirect PWM for open-drain K/R configurations. The MAX16823ATE/V+ also features an adjustable power-on-time delay and an adjustable power-on-current limit.The device can be powered up to 33V and can handle a low-current load.

Applicatiom Field and Working Principle of MAX16823ATE/V+

The MAX16823ATE/V+ can be used in a wide range of applications, particularly in consumer and mobile devices.It is suitable for tasks that require a color display, such as digital watches, PDAs, and mobile phones.It can also be used in applications that require a large amount of power, such as high-end audio players, car audio systems, and automotive display systems.

The working principle of the MAX16823ATE/V+ can be summarized as follows: first, the DC voltage and current needed to drive the LEDs is generated by the boost converter and charge pump circuit. Then, the two high-side switches control both the current sourcing (to turn on the LEDs) and the current sinking (to turn off the LEDs) of the LEDs. Finally, the LED brightness is controlled by the two current sources.

In summary, the MAX16823ATE/V+ is a powerful and versatile PMIC-LED driver from Maxim Integrated.It features a wide range of features, such as two-wire control modes, adjustable power-on-time delay and adjustable power-on-current limit, which make it well suited for a variety of applications.

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