LTC1643AL-1IGN#TRPBF

Features:	Latched Fault, Thermal Limit, UVLO
Base Part Number:	LTC1643
Feature Pins:	/FAULT, (ON, /ON), /PWRGD, TIMER
Supplier Device Package:	16-SSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Current - Output (Max):	200mA, 500mA
Voltage - Supply:	3.3V, 5V, ±12V
Programmable Features:	Current Limit, Fault Timeout, Slew Rate
Series:	--
Applications:	CompactPCI™
Internal Switch(s):	Both
Number of Channels:	4
Type:	Hot Swap Controller
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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LTC1643AL-1IGN#TRPBF Application Field and Working Principle

PMIC (Power Management Integrated Circuits) are used to manage the power consumption of various electronic circuits such as portable devices, personal computers, servers, embedded systems, etc. Hot swap controllers are a type of PMICs that are specifically designed for managing the hot insertion and removal of devices from a bus or an external circuit. The LTC1643AL-1IGN#TRPBF is one such PMIC (Power Management Integrated Circuit) from Linear Technology that is used as a hot swap controller in a variety of applications.The LTC1643AL-1IGN#TRPBF is a highly efficient, low-power Hot Swap controller, designed to provide a high level of control and flexibility for hot plugging power sources. It supports a total output current of up to 5.5 A, and includes built-in over-voltage, short-circuit, in-rush current and over-temperature protection circuits. The device also features an integrated soft-start, enabling the hotplugging of a wide range of loads, while ensuring correct system initialization.The LTC1643AL-1IGN#TRPBF can be used in a wide range of applications such as computer peripherals, modems, network hubs, server shelves, and other systems that require a high level of protection against hot plugging. In addition, it has the ability to detect and prevent any damage caused by plugging in a faulty device while also configuring the Hot Swap supply voltage.The basic principle of operation of the LTC1643AL-1IGN#TRPBF is based on monitoring the load connected to the Hot Swap output power rail. If the load exceeds a preset maximum value, the Hot Swap supply voltage is automatically shut down. This enables the device to protect the load from damage. In order to restart the Hot Swap supply voltage, the load is monitored by the device until it is brought back to a safe level. Once the load is below the preset threshold, the Hot Swap supply voltage is automatically enabled.In addition, the device also provides several features such as programmable slew rate control, power-on reset (POR) output, adjustable over-voltage protection circuit (OVPC), adjustable in-rush current threshold, and adjustable short-circuit protection circuit (SCP). These features enable the device to be used in a wide range of applications that require a high level of protection and control.The LTC1643AL-1IGN#TRPBF can be used in applications such as servers, telecom equipment, network switches, and other electronic equipment. The device is also compatible with various low power systems, such as microcontrollers, field-programmable gate array (FPGA) circuits, and digital signal processors (DSP). In addition, it is also capable of operating in temperatures ranging from -40°C to +85°C, making it suitable for a wide range of applications.The device is available in an industry-standard MSOP-10 package, making it suitable for use in a wide range of commercial and industrial applications. With its low power consumption and high level of protection against over-voltage, over-temperature, in-rush current, and over-current, the LTC1643AL-1IGN#TRPBF is an ideal solution for hot plugging systems.

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