Current - Output (Max):	15A, 15A
Base Part Number:	PT4681
Size / Dimension:	--
Package / Case:	26-SIP Module
Mounting Type:	Through Hole, Right Angle
Efficiency:	88%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	100W
Series:	Excalibur™ PT4680
Voltage - Output 3:	--
Voltage - Output 2:	3.3V
Voltage - Output 1:	5V
Voltage - Input (Max):	36V
Voltage - Input (Min):	18V
Number of Outputs:	2
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	Tray

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DC DC Converters

PT4681A Application Field and Working Principle

DC-DC converters are widely used in various sectors in today\'s society, providing efficiency, stability and reliability to the systems around us. Specifically, the PT4681A is an ultrahybrid boost converter with 600mV delta-peak current-mode control, integrated integrated high-side and low-side MOSFETs, two logic inputs for PWM and skip control, and a programmable frequency compensation circuit. The PT4681A is designed for micro-24V to 12V offline, battery powered, and other line-powered applications.The PT4681A boost converter operates in current-mode for high stability and power efficiency. Its primary features include a current-mode control system with delta-peak current detection, an integrated high-side and low-side MOSFET switch, two logic inputs for PWM and skip control, and a frequency compensation circuit with adjustable parameters.The main operating principle of the PT4681A boost converter is based on a current-mode control system with delta-peak current detection, which compares the sensed current with a reference voltage to control the boost converter output voltage. The PT4681A also includes an integrated high-side and low-side MOSFET switch, which allows for efficient control of the output voltage. The switch is driven by two logic inputs,which can be programmed for PWM control or skip frequency control, according to the design requirements. Additionally,the PT4681A includes a frequency compensation circuit with adjustable parameters for improved stability and power efficiency.The PT4681A boost converter is ideal for a wide range of applications, such as retrofit lighting, portable batteries, battery charging, and charging for plug-in hybrid vehicles. It is designed for micro-24V to 12V offline, battery powered, and other line-powered applications, which require high efficiency and reliability. The PT4681A\'s 600mV delta-peak current-mode control, integrated high-side and low-side MOSFETs, two logic inputs for PWM and skip control, and frequency compensation circuit make it a perfect choice for most modern applications.The advantages of the PT4681A boost converter include its high efficiency (up to 94%), exceptional stability and reliability, and low EMI levels. Additionally, the integrated high-side and low-side MOSFETs and two logic inputs for PWM and skip control make for easy and flexible implementation. In addition, the adjustable frequency compensation circuit ensures improved system stability and power efficiency. In conclusion, the PT4681A is a high-performance ultrahybrid boost converter that provides high efficiency and exceptional reliability for a wide range of applications. Its 600mV delta-peak current-mode control, integrated high-side and low-side MOSFETs, two logic inputs for PWM and skip control, and adjustable frequency compensation circuit make it ideal for most modern applications.

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