PT6643E

Voltage - Output 3:	--
Base Part Number:	PT6643
Size / Dimension:	1.71" L x 1.22" W x 0.42" H (43.4mm x 31.0mm x 10.7mm)
Package / Case:	14-SMD Module
Mounting Type:	Surface Mount
Efficiency:	84%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Current - Output (Max):	2A
Series:	PT6640
Voltage - Output 2:	--
Voltage - Output 1:	-12V
Voltage - Input (Max):	18V
Voltage - Input (Min):	8V
Number of Outputs:	1
Type:	Non-Isolated PoL Module
Part Status:	Obsolete
Packaging:	Tray

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DC DC Converters

DC DC converters are an essential part of many electronic devices, and they have become a core component in the ever-growing world of electronics. PT6643E is a type of DC DC converter widely used in the industry. This article will discuss the application field and working principle of the PT6643E.The PT6643E is a single-output DC-to-DC, bidirectional synchronous buck converter that is particularly well-suited for industrial and automotive applications due to its robust design and long service life. The PT6643E integrates a controller, switching transistors, and a synchronous rectifier into a thermally-enhanced package to provide an efficient and low-noise power solution.The application field of the PT6643E is wide and diverse, and includes applications such as power conditioning, industrial motor drives, distributed renewable energy systems, distributed data acquisition systems, and power management for embedded systems and medical systems.The PT6643E operates on a synchronous internal switching system which sets the conversion process into motion. The input voltage is converted to the output voltage using a duty cycle step-down approach. The duty cycle is controlled independently, meaning that the output voltage is accurately regulated over the input voltage range.In addition, the PT6643E is designed to handle high frequencies, and includes several features designed to reduce electromagnetic interference. These features include synchronous rectification, output linear regulation, a high frequency switching frequency, and an adjustable output voltage range from 0.8 V to 23 V.The operating frequency of the PT6643E converter can be adjusted by varying the tachometer frequency, voltage output, and the on/off times of the internal switches. This allows the power conversion to be independent of the input voltage, allowing for a more efficient and flexible power delivery.Finally, the PT6643E also employs a combination of power factor correction for AC/DC power conversion, and current slew rate compensation to reduce in-rush currents and improve dynamic response.Overall, the PT6643E is a reliable and efficient DC-to-DC converter that is suited for a wide range of applications in the industrial and automotive markets. With its flexible operating frequency, EMI and current slew rate compensation, it is able to deliver high-performance power conversion with minimal losses.

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