LM27222M

Current - Peak Output (Source, Sink):	3A, 4.5A
Base Part Number:	LM27222
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Rise / Fall Time (Typ):	17ns, 12ns
High Side Voltage - Max (Bootstrap):	33V
Input Type:	Non-Inverting
Series:	--
Logic Voltage - VIL, VIH:	--
Voltage - Supply:	4 V ~ 6.85 V
Gate Type:	N-Channel MOSFET
Number of Drivers:	2
Channel Type:	Synchronous
Driven Configuration:	Half-Bridge
Part Status:	Not For New Designs
Packaging:	Tube

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Application Field and Working Principle of LM27222M

The LM27222M is a gate driver integrated circuit that is part of a more comprehensive family of Precision Edge Gate Drivers (PEGDs). This family of parts offers a combination of high-performance, configuration, and programmability features for many applications. The LM27222M has some elements that are part of the qualification process for use in mobile cellular, navigation, and multimedia radios and also serving in automotive, industrial, and computer peripheral applications.The LM27222M is specifically designed to reduce power consumption in electronic systems by providing high-efficiency, low-ripple operation. It is capable of directly driving MOSFETs and other high power devices, and has a wide range of features ideal for applications that require a high degree of precision, speed, and accuracy. In addition to its inherent power efficiency, the LM27222M includes programmable soft-start capability and a low turn-on threshold voltage, making it ideal for powering high-performance FETs with minimal voltage loss.In operation, the gate driver works by using an integrated voltage regulator to generate an appropriate voltage level, then passing that level through a high-frequency current amplifier and a high-speed gate driver to the shield gates of the FET. The gate driver has the ability to sense both high and low voltage conditions in order to ensure that the MOSFETs are always switched properly and quickly.The LM27222M also includes a variety of control and feedback features, as well as a number of configurable parameters, including: • Frequency range: The maximum switching frequency of the LM27222M can be adjusted for low-profile and high-performance applications.• Current limitation: An overload protection circuit is included to protect the LM27222M from excessive current spikes. • Thermal protection: Temperature sensors and protection circuits protect the LM27222M from overheating and thermal runaway. • Fault monitoring: Fault trips and warnings can be set to indicate when the FETs are not switching properly.The LM27222M also includes various other features and capabilities, such as a high-voltage range, a low-swing threshold voltage, and a low input current, which make it suitable for use in high-precision applications. Additionally, the LM27222M is available in a variety of package types, such as a 48-pin QFN-type, making it an ideal choice for space-constrained applications.Overall, the LM27222M is suitable for many types of applications, ranging from low-frequency switching to gaming consoles, wireless power transfer, robotics, and industrial automation systems. With its low power consumption and variety of features, the LM27222M is a powerful and efficient gate driver integrated circuit that is capable of providing precise and reliable performance for a wide range of applications.

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