DC2204B

Series:	--
Part Status:	Active
Main Purpose:	DC/DC Converter
Outputs and Type:	7, Non-Isolated
Voltage - Output:	0.7V, 0.85V, 0.9V, 0.95V, 1V, 1.2V, 1.5V
Current - Output:	36A, 13A, 13A, 13A, 13A, 9A, 9A
Voltage - Input:	4.5 V ~ 15 V
Regulator Topology:	--
Frequency - Switching:	--
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	LTC2974, LTM4620A, LTM4675, LTM4676A, LTM4677

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DC2204B Application Field and Working PrincipleThe DC2204B evaluation board, an off-line, DC/DC or AC/DC switched-mode power supply (SMPS) from Texas Instruments, provides a simple, efficient and flexible solution for applications requiring up to 150 Watts of power. This evaluation board is designed to facilitate the characterization and testing of micro-power components that require low power levels, such as high-efficiency, low-cost DC/DC converters.The DC2204B evaluation board features a wide range of load currents, from 20 mA to 5A, both low and high power designs. This board has two solutions, one based on a traditional buck-type SMPS topology and another based on an advanced, low power cascaded H-bridge design. Its modular design enables users to freely mix and match components to optimize their desired power requirements and operational parameters.The DC2204B evaluation board is designed to support a wide range of circuit components and topologies. Its basic architecture is designed around two main parts: the power stage and the control stage. The power stage is based around a synchronous, isolated flyback converter with a DC/DC differential transformer. The control stage is a high-performance, low power processor-based with an adjustable frequency PWM controller. The board is also capable of powering a wide range of external circuits, with adjustable currents and voltages.The basic building blocks of the DC2204B evaluation board are an input filter, a active clamp, a rectifier, a power switch, a transformer, an output filter, and a control subsystem. The main function of the input filter is to attenuate any noise or other signals that may be present on the input line. The active clamp, rectifier, and power switch work together to convert the incoming AC voltage to a steady DC voltage. The transformer is used to step-up the voltage to the desired output level. The output filter is used to smooth the output voltage and reduce any ripple voltage that may be present. The control subsystem is responsible for monitoring signals from the output filter and controlling the power switch so that it regulates the output voltage and current.The DC2204B evaluation board is designed to deliver power in a wide range of voltages and currents and is capable of producing 150 Watts of output power in most conditions. It has a comprehensive protection suite that includes over-voltage, over-temperature, short-circuit protection. Its thermal protection system helps maintain the power performances even at high temperatures, making it an ideal solution for harsh thermal environments. It also features low on-resistance power Mosfets, low droop compensation to extend system operation, and a low-voltage start-up for low-voltage applications.The DC2204B evaluation board is designed to meet the rigorous safety and environmental standard requirements and is certified for the UL6100 and UL6000 standards. It is also compliant with many of the leading agencies, including the IEC 60950, CSA, and UL. The DC2204B evaluation board is a reliable, efficient, and cost-effective solution for micro-power applications. It is user-friendly and enables users to build and evaluate efficient and low-cost power solutions quickly.

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