DC1617A-B

Series:	--
Part Status:	Active
Main Purpose:	DC/DC, Step Down
Outputs and Type:	2, Non-Isolated
Voltage - Output:	5V, 12V
Current - Output:	10A, 6A
Voltage - Input:	13 V ~ 36 V
Regulator Topology:	Buck
Frequency - Switching:	250kHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	LTC3855

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The DC1617A-B is an evaluation board that provides the ability to evaluate a switching power supply and optimize it. The device offers a broad range of features, from basic performance measurement to system-level controls. The DC1617A-B application fields accommodate a wide variety of applications, including controllable buck, buck-boost, and boost converters with up to 2V output, integrating PWM controllers, and facilitating advanced PWM technologies. It’s also widely used in motor control systems, high-speed buck regulators, and AC/DC power supplies. The board features a fully functional multi-output DC/DC step-down (buck) converter and an adjustable output voltage range from 0V to 5V. The DC1617A-B provides adjustable resolution between 0.0025V and 0.4V and requires a 10-bit synchronous interface. It consists of two dual-channel amplifier packages, each containing two buck regulators with adjustable outputs. The upper and lower channels of the DC1617A-B board provide adjustable output voltages of 0–2V and 1–5V, respectively. These can be used in any combination to provide a single, regulated output. The DC1617A-B board also features a programmable soft-start feature, allowing the system to start at a lower voltage and then gradually increase to the desired output voltage. By using this feature, the user can avoid large inrush currents and reduce the EMI associated with switching converters. An onboard test circuit allows the user to measure the input current, output voltage, frequency, effective system current, and system voltage. The test point also provides the capability to measure the efficiency of the converter under changing loads. Also, the user can adjust the parameters from the control panel to optimize the converter performance. At its core, the DC1617A-B board is designed to enable users to create their own efficient and reliable switching power supplies. The board works by utilizing a set of components to create DC/DC and AC/DC (off-line) switching power supplies. This is accomplished by modulating a input signal voltage to produce a clean, regulated output voltage or current from the device. The assembly of the device includes an onboard transformer, opto-isolator, and switching devices that work together to control the operation of the output stage. The switching operation is based on a synchronous buck rectification process, where input and output transistors alternately switch the circuit to transfer energy from one capacitor to another. This feature allows for the device to be highly efficient, and it is also capable of providing smooth, clean output voltage or current without the need for additional components. The opto-isolator ensures the transistor switching sequence is maintained, and the protection circuit ensures that overvoltage or overtemperature conditions are not exceeded. Overall, the DC1617A-B evaluation board provides an easy to use tool for evaluation and optimization of DC/DC and AC/DC switching power supplies. With a wide variety of applications, the board offers users the ability to create efficient and reliable switching power supplies for a variety of applications. This board offers features such as programmable soft-start, adjustable resolution, and onboard test circuit, and allows users to evaluate and optimize the performance of their system. Additionally, the design of the board also helps reduce the EMI associated with switching supplies, ensuring an efficient, reliable, and clean output voltage or current.

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