ISL6146AFUZ

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The ISL6146AFUZ is a pulse-width modulation (PWM) controller used for power management applications. It is a member of Intersil’s Power Management Integrated Circuit (PMIC) family of products, which includes OR controllers and ideal diodes. The ISL6146AFUZ has been designed to provide a complete solution for power management, with features such as programmable temperatures, PWM dimming, internal NFET voltage protection, and over-temperature protection.

The ISL6146AFUZ combines a pulse-width modulation (PWM) controller and an OR controller with integrated FETs in a small SOT23 package. The OR controller provides over-current, over-voltage, and short-circuit protection. The OR controller also includes internal NFETs which can be controlled independently to provide over-current protection, voltage protection, and to sense output current. The PWM controller provides programmable current-mode control, PWM dimming, thermal protection, and remote on/off control.

OR controllers provide the primary control loop for the system power management. The PWM controller controls the OR controller, manages current and voltage regulation, monitors temperature and ensures proper device thermal protection during system operation or fault conditions.

The integration of both the OR and PWM controllers into a single package simplifies the system design and reduces the number of components required. Furthermore, the OR controller can reduce system power losses by limiting the voltage and current through the FETs and reduces the system’s noise performance.

The ISL6146AFUZ incorporates a wide range of features to optimize system power management. The OR controller functions as a power switch, providing current, voltage and temperature protection. The PWM controller operates in a closed loop system to provide current-mode control and voltage regulation. In addition, the PWM controller limits the maximum on-time to ensure safe operation of the system.

The integrated OR controller provides precision DC accuracy and AC performance to deliver optimal system power efficiency with minimal power losses. It also ensures safe operation in fault conditions and provides superior load-transient performance. The PWM controller supports a wide range of programmable OTP options, making it easy to configure the ISL6146AFUZ for various power management applications.

The ISL6146AFUZ is suitable for use in a wide range of power management applications such as portable consumer electronics, PCs and communications systems. The device is RoHS compliant and is available in a variety of small packages including SOT-23, QFN, DSBGA and QSOP. The ISL6146AFUZ is qualified to AEC-Q100 automotive grade standards and is available in extended temperature versions to support a wide range of operating temperature requirements.

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