PT6983C

Voltage - Output 3:	--
Base Part Number:	PT6983
Size / Dimension:	2.58" L x 1.19" W x 0.43" H (65.5mm x 30.2mm x 10.9mm)
Package / Case:	23-SMD Module
Mounting Type:	Surface Mount
Efficiency:	81%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, SCP
Applications:	ITE (Commercial)
Current - Output (Max):	9.5A, 2A
Series:	Excalibur™ PT6980
Voltage - Output 2:	1.8V
Voltage - Output 1:	3.3V
Voltage - Input (Max):	13.2V
Voltage - Input (Min):	10.8V
Number of Outputs:	2
Type:	Non-Isolated PoL Module
Part Status:	Obsolete
Packaging:	Tray

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DC DC Converters

DC DC converters are used to convert a DC signal from one voltage level to another. They are used in a wide variety of applications, from powering electrical equipment to charging batteries and powering electronic circuits. The PT6983C is one of the many popular DC DC converters available on the market. In this article, we will take a look at the PT6983C and see how it can be used in both commercial and industrial applications.The PT6983C is a step-down DC DC converter designed to convert a DC signal from higher to lower voltage while maintaining high efficiency. It is capable of converting input voltages from 4.5V to 26V to output voltages from 0.8V to 17V, with loading of up to 6A. With a full set of protection and adjustable output current/voltage, the PT6983C makes an ideal choice for a wide range of applications including LCD and LED displays, battery packs, surveillance cameras, and various types of sensors.In terms of structure, the PT6983C can be divided into four parts: the power stage, the control stage, the feedback circuit, and the protection circuits. The power stage consists of an inductor, two MOSFETs, a diode, a fuse, and a capacitor. The inductor is used to store energy, while the two MOSFETs and the diode switch the input power to an output voltage. The fuse and capacitor provide protection in the event of a short circuit.The control stage of the PT6983C is responsible for regulating the output voltage. It consists of a pulse-width modulation (PWM) controller, two logic ICs, a voltage error amplifier, an oscillator, and a current-sense amplifier. The PWM controller is responsible for regulating the duty cycle of the two MOSFETs, and thus, the output voltage. The logic ICs, voltage error amplifier, oscillator, and current-sense amplifier work together to provide precision control of the output voltage.The feedback circuit is responsible for monitoring the output voltage and adjusting the duty cycle accordingly. It is composed of a voltage divider network made up of two resistors and a capacitor. The voltage divider network is connected to the output and the voltage is monitored by the voltage error amplifier. When the output voltage deviates from a preset value, the voltage error amplifier adjusts the duty cycle accordingly, thus, regulating the output voltage.In terms of protection, the PT6983C is equipped with several protective features. These include: over-current protection, under-voltage lockout protection, over-temperature protection, and over-voltage protection. The over-current protection prevents overloads and short-circuits by shutting off the output when the current exceeds a certain threshold. The under-voltage lockout protection prevents unwanted startup of the converter when the input voltage is too low. The over-temperature protection shuts down the converter when the temperature of the system exceeds a certain threshold. Finally, the over-voltage protection prevents the output voltage from exceeding a preset level.Overall, the PT6983C is a compact and efficient DC DC converter specifically designed for a variety of applications. With its wide input voltage range, adjustable output current/voltage, and comprehensive set of protections, the PT6983C is an ideal solution for consumer, commercial, and industrial applications.

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