ADM1073ARUZ-REEL7

Programmable Features:	Current Limit, Fault Timeout, OVP, UVLO
Base Part Number:	ADM1073
Feature Pins:	/LATCHED, OV, /PWRGD, /RESTART, /SHDN, /SPLYGD, SS, TIMER, UV
Supplier Device Package:	14-TSSOP
Package / Case:	14-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Current - Supply:	300µA
Operating Temperature:	-40°C ~ 85°C
Current - Output (Max):	--
Voltage - Supply:	-80 V ~ -35 V
Series:	--
Features:	Auto Retry
Applications:	-48V
Internal Switch(s):	No
Number of Channels:	1
Type:	Hot Swap Controller
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

The ADM1073ARUZ-REEL7 is a highly-integrated, high-speed hot-swap controller from Analog Devices, Inc. It is designed to be used with a variety of different platforms and systems for a wide range of protection and power management applications. The ADM1073ARUZ-REEL7 provides maximum protection against sudden high in-rush currents and voltage transients. It also provides safe and fault-tolerant hot-swap sequencing and monitoring of system power supplies.

Features

The ADM1073ARUZ-REEL7 Hot-Swap Controller offers a variety of features, including:• Under-voltage lockout (UVLO) capability to protect against sudden, transient voltage events• Thermal plate monitoring and shut-down to prevent overheating• Programmable current limit and fault delay time to manage in-rush current• Programmable threshold voltage for fault detection and shut-down• Fail-safe operation in the event of a fault• Programmable soft-start for smooth transition during system start-up• Remote shutdown capability

Applications

The ADM1073ARUZ-REEL7 Hot-Swap Controller features a broad range of different applications, including:• Networking equipment, including switches and routers• Network security and surveillance systems• Automotive and industrial electronic systems• Computer and peripheral equipment• High-end audio/visual systems• Telecom/wireless infrastructure• Gaming consoles

Working Principle

The ADM1073ARUZ-REEL7 hot-swap controller works by monitoring the system’s power supply voltage with its programmable threshold-voltage detection circuit. When the input voltage falls below the specified threshold, the controller triggers a fault delay timer and a set of voltage and current limiters. These limiters protect the system from excessive inrush current, allowing the device to smoothly ramp up its power supply voltage, while also protecting it from extended power surges.The controller also provides a programmable shutdown-delay timer, which allows for a smooth system shutdown. It also features a number of thermal protection features, including temperature monitoring and thermal shut down. This helps ensure safe operation and longer lifespan of the system.

Conclusion

The ADM1073ARUZ-REEL7 hot-swap controller from Analog Devices, Inc. is a highly-integrated, high-speed controller designed for a variety of protection and power management applications. It features under-voltage lockout, thermal plate monitoring, programmable current limit and fault delay time, programmable threshold voltage for fault detection and shut-down, fail-safe operation, programmable soft-start and remote shutdown capability. Its wide range of applications includes networking equipment, audio/visual systems, automotive and industrial systems, and telecom/wireless infrastructure. The controller works by monitoring the voltage of the system’s power supply, and providing protection against sudden inrush currents and voltage transients. It also includes a number of thermal protection features which help to ensure safe and reliable operation of the system.

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