LT8640SIV#PBF

Voltage - Output (Min/Fixed):	0.97V
Base Part Number:	LT8640
Supplier Device Package:	24-LQFN (4x4)
Package / Case:	24-TFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	200kHz ~ 3MHz
Current - Output:	6A
Voltage - Output (Max):	42V
Series:	--
Voltage - Input (Max):	42V
Voltage - Input (Min):	3.4V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tray

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Introduction

The LT8640SIV#PBF is a high performance, bidirectional, continuous frequency controller for dc-dc power converters. It is designed for applications that require robust, high-efficiency conversion of battery voltages to regulated voltages and currents. LT8640SIV#PBF is well suited for voltage conversion and power isolation in portable applications, automotive systems, and industrial power systems. It offers superior performance and flexibility, making it an ideal design solution for applications ranging from power management to supervisory control.

Features

The LT8640SIV#PBF has several features that make it well suited for a variety of applications. It supports adjustable output voltage with a wide range of 0.9 to 36V, regulated and programmable current limiting, programmable temperature and fault protection, and low current standby operation. It also features high efficiency, low parts count, and small size; typical efficiency is greater than 95%.

Application Field

The LT8640SIV#PBF is a high performance, bidirectional, continuous frequency controller for dc-dc power converters. It is designed for applications that require robust, high-efficiency voltage conversion and power isolation. It is suitable for a wide range of industries, including consumer electronics, automotive, industrial, and medical applications.The LT8640SIV#PBF is particularly well suited for portable consumer electronics, such as laptops, tablets, and cell phones. It operates between 0.9V and 36V and provides up to 95% efficiency. This makes it an ideal choice for converting battery voltages to the regulated voltage and currents required by the underlying electronics. It is also useful for applications where energy efficiency and small form factor are important factors, such as wearables and other miniature devices.The LT8640SIV#PBF is also well suited for automotive applications. It can be used to provide conditioning and power isolation for 12V and 24V automotive systems. It is designed to withstand a wide range of environmental conditions, such as temperature, humidity, and electrical noise. This makes it an ideal choice for automotive applications, such as vehicle safety systems, electronic power control systems, and vehicle infotainment systems.The LT8640SIV#PBF is also suitable for industrial applications. It can be used in industrial power systems, such as industrial process control, factory automation, and industrial automation networks. It is well suited for providing power isolation and conditioning to a wide range of devices, such as sensors and actuators. Its wide input voltage range and high efficiency make it an ideal choice for power conversion and conditioning.Furthermore, the LT8640SIV#PBF is suitable for medical applications. It has features such as low current standby operation and programmable temperature and fault protection, making it well suited for medical equipment requiring robust power conversion and conditioning.

Working Principle

The LT8640SIV#PBF is a bidirectional, continuous frequency converter. This means that it is capable of converting from one voltage range to another, as well as from AC to DC and vice-versa. It operates on a pulse width modulation (PWM) principle, using an internal pulse width modulator to switch a power MOSFET. The frequency of the PWM can be adjusted depending on the application.The LT8640SIV#PBF is designed to handle a wide range of input voltages, from 0.9V to 36V. It can be used to condition input voltage, to reduce the ripple and noise present on the input. It also supports adjustable output voltages with a wide range of 0.9 to 36V. It provides regulated output by utilizing its pulse width modulation (PWM) controller, which controls the switching frequency and duty cycle of the output power MOSFET.The LT8640SIV#PBF also features programmable current limiting, programmable temperature and fault protection, and low current standby operation. The current limiting function determines the maximum current allowed in either direction, so that the device is protected against over-current events. The temperature protection circuit is designed to shut off the output stage if the temperature exceeds a certain threshold, to protect the device from excessive temperature. Lastly, the low current standby operation feature ensures that the device consumes very low quiescent current when in standby mode.

Conclusion

The LT8640SIV#PBF is a high performance, bidirectional, continuous frequency controller for dc-dc power converters. It is designed for applications that require robust, high-efficiency voltage conversion and power isolation. Its features include adjustable output voltage with a wide range of 0.9 to 36V, regulated and programmable current limiting, programmable temperature and fault protection, and low current standby operation. It is suitable for a wide range of industries, including consumer electronics, automotive, industrial, and medical applications. The LT8640SIV#PBF operates on a pulse width modulation (PWM) principle, using an internal pulse width modulator to switch a power MOSFET.

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