AD5801BCPZ-REEL7 Integrated Circuits (ICs)

Introduction

AD5801BCPZ-REEL7, also known as Device 0x8, is an Integrated Power Management IC that is part of the Linear Technology\'s PowerPath family of integrated circuits. It supports up to seven outputs, each having its own pulsed current feedback loop in order to provide precise control of the individual outputs. Its multiple outputs are capable of providing the regulation, current monitoring, and other functions necessary for powering, energizing, and protecting the system. This article will discuss the application field and working principle of the AD5801BCPZ-REEL7 Device 0x8.

Application field and Working Principle

The AD5801BCPZ-REEL7, Device 0x8, is an integrated power management IC (PMIC) that is ideal for use in applications that require multiple power supplies such as servers, storage systems, communications, industrial and medical equipment. It is specifically tailored to provide the required power and monitoring functions for a wide variety of applications. Its two PWM output switches enable a maximum current rail of 3.2A per channel with output current and voltage monitoring and protection. In addition, it supports two digital signals for fan control.

The AD5801BCPZ-REEL7, Device 0x8, utilizes a switched current source (SCS) topology and offline synchronization to provide precise control of its seven outputs. The SCS topology works by using a single dedicated switch connected to a high-side current source. This switch is controlled by an on-chip PWM controller, which can be configured for operation in any of the following modes: one-shot mode, pulse width mode, and continuous adjustable pulse width (CAPPW) mode. The PWM controller is synchronized to an external clock signal, which is needed in order to accurately control the output current. The PWM controller is also responsible for providing the current monitoring and error signals for the current sources, as well as controlling the gate driver for the output switches.

The AD5801BCPZ-REEL7, Device 0x8, also includes an integrated output voltage monitoring to detect any voltage output drops. This feature works by comparing the main output voltage to a reference voltage and sending a signal when the difference exceeds a threshold. This signal can be used to initiate a system shutdown in order to avoid any potential damage to the system. In addition, the AD5801BCPZ-REEL7 supports other functions such as power management, digital control, and over-temperature protection.

Conclusion

The AD5801BCPZ-REEL7, also known as Device 0x8, is an Integrated Power Management IC that is part of the Linear Technology\'s PowerPath family of ICs. It is specifically designed for high-end system applications that require multiple power supplies. It provides precise control of its seven outputs using a switched current source topology and an external clock signal for synchronization. In addition, it supports other functions such as power management, digital control, and over-temperature protection.