LTC4365CDDB

Series:	--
Part Status:	Obsolete
Applications:	Overvoltage, Undervoltage Protection
Current - Supply:	125µA
Voltage - Supply:	2.5 V ~ 34 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	8-WFDFN Exposed Pad
Supplier Device Package:	8-DFN (3x2)

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Introduction The LTC4365CDDB is a versatile power management IC that has a wide range of applications and can help to reduce system power consumption and size. The device integrates multiple features like load control, power monitoring, battery connection, etc., allowing developers to develop robust and efficient power systems. In this article we will delve into the field of applications and the way it works.Application Fields The LTC4365CDDB can be applied in a wide range of applications, such as: • High Voltage Buck Mode (HWB): HWB is used to provide high voltage outputs from a low voltage input. With its wide V IN range, the LTC4365CDDB can provide outputs of up to 12V from a V IN range of 4.5V to 60V. • Battery-Backup Mode (BM):The LTC4365CDDB can be used to provide a battery backup in portable electronic devices. It can be used to switch between a primary and secondary power source, while monitoring the battery voltage and providing an orderly switchover.• Low Dropout (LDO): The LTC4365CDDB can also be used as an LDO, where it can provide power to load components and digital regulators as needed. • System Power Supplies:The LTC4365CDDB is also suitable for single-cell and multiple-cell battery-powered systems that require low to medium power and can control the charging current to the cells. Working Principle The LTC4365CDDB consists of four main components:• High voltage ac/dc (HVAC/DC) supply inputs: The HVAC/DC supply inputs (V IN ) are used to provide power to the LTC4365CDDB and to drive the load. • Load control block: The load control block (LOLO) is used to control the flow of energy to the load. It can be used to set and maintain the maximum load current, regulate the load voltage, and monitor the load current. • System monitor: The system monitor (SMD) is used to detect voltage anomalies and monitor over-voltage events, and then shuts down the system if necessary. It also monitors battery status and fault conditions. • Battery connect block: The battery connect block (BCON) allows for connection of a battery, and provides the LTC4365CDDB the ability to charge the battery and detect when the battery is full. Conclusion The LTC4365CDDB is a versatile power management IC which can be used in a wide range of applications from providing high voltage output from a low voltage supply to servicing as a battery backup in portable electronic devices. It has four main components which work together to control the power supply, monitor the battery level and voltage, and provide maximum load current while regulating load voltage. By combining these features, developers can develop robust and efficient power systems.

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