MC33982CHFK

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PMIC or Power Management Integrated Circuits are utilized for the optimal power management of a wide range of electronic systems. MC33982CHFK is one such chip which is manufactured by ON Semiconductor and served as a Load Drivers and Power Distribution Switches designed to be Direct Drive Input. This 1.67V rated, 4.5A load current provider allowed a power switch with a maximum duty of 99 % and features digital diagnostic functions. It is comprehensive and integrated power management solution with high-frequency performance and maximum switching frequency of up to 1.2 Mhz.

The dual-channel low-side heavy duty, medium side and low-side drivers all use advanced design techniques and the N-Channel architecture to enhance the satisfaction of general purpose and automotive application requirements. The high source current capability and low visible switching losses are the two instantly noticeable facts about MC33982CHFK. This chip is also highly reliable and can sustain high temperature environments with excellent transient response. In order to provide more detailed information, the chip supports monitoring and points features that allow external monitoring of both the load and the ground.

As far as the applications of MC33982CHFK are concerned, they include step down DC/DC converters, automotive inverters, DC/DC converters, power supplies, battery chargers, and audio systems. It is especially ideal for applications that require a low-side dual channel (three) load driver with a load current of up to 4.5A. This chip comes in an SO-8 lead free package that has maximum size of 108 x 74 micro-meters. Accordingly, it is also ideal for applications that seek for higher efficiency and high-current operation which is in line with automotive standards.

The working principle of MC33982CHFK is equally simple and simple. It is a voltage-controlled switch which enables a direct drive input to set the desired output voltage level. This self-contained chip supports multiple signals and the output is activated when the input signal present on pin EN is low and the power supply reaches its rated voltage. In addition, the other two control signals, SD1 and SD2 allow the user to disable the Enabling (EN) pin control by placing a low voltage on the control input.

The chip has excellent inner mechanism and its advanced design features allow low crossover current and EMI/RFI performance along with improved efficiency with excellent safety features. The PWM and disable are also integrated in the chip. Further, an on-board temperature protection is using external thermal resistance resistor offering protection against over-temperature and averting possible over-temperature conditions.

In order to sum up it can be said that MC33982CHFK is one of the most reliable, powerful and efficient Load Drivers and Power Distribution Switches available in the market. With a rated voltage of 1.67V, it allows a maximum load current of 4.5A and also supports adjustability in voltage levels, EMI/RFI performances, and current levels. Apart from the ease of use, reliability and power advantages, this chip also comes with excellent safety features, which makes it an ideal choice for most of the electronic applications.

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