MC33664ATL1EG

Series:	--
Packaging:	Tube
Part Status:	Active
Applications:	Isolated Communications Interface
Current - Supply:	40mA
Voltage - Supply:	4.5 V ~ 7 V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC

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MC33664ATL1EG Application Field and Working Principle

Power management integrated circuits, or PMICs, are semiconductor devices that regulate, control and monitor the power system on a device. PMICs are the brains behind any power system, providing intelligence and regulating the power levels on a particular device. Power management devices from all major semiconductor manufacturers are available on the market, and Microchip’s MC33664ATL1EG is one example of a power management Integrated Circuit. This device is designed for automotive applications, but can be used in commercial and industrial applications. It is a multi-channel PMIC that offers independent direct-PWM regulation of a wide array of motor-ownership and booster-capacity for a variety of automotive applications, including engine and transmission control, turbo-charging, and automotive lighting. The device has an integrated system clock, which enables independent triggering of two sets of mixed power FETs, which can be used to regulate power levels. This PMIC’s primary function is to provide adjustable switching and power sequencing. It uses a resonant-mode of operation, which allows the multi-pattern FETs to switch quickly and with precision in order to achieve maximum power efficiency. The MC33664ATL1EG also has an integrated current sense comparator that allows for better regulation of power-level control. The device is capable of regulating multiple power channels, up to five in total. Each of these power channels can be set for either constant (DC) or pulse width modulated (PWM) operation. Additionally, it can be programmed to either drive or pull any given power channel. The device also offers several other features, such as an integrated voltage controlled oscillator (VCO) that can be used for frequency hopping or frequency chipping; multi-timer functions for timing and control of power sequencing; an integrated startup control circuit for controlling start-up time delays; an automated voltage regulation loop; and an on-chip ESD for protection against electro-static discharge. The MC33664ATL1EG is an ideal solution for applications where space and cost are limiting factors, as the integrated voltage-regulation loop parameters and the multi-timer functions can be configured to suit the exact needs of the system. Additionally, its integrated current sense comparator and the efficient switching and power sequencing that it offers ensures that power stays within the specified operating ranges, making it an excellent choice for many power management applications.

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