DC1170A

Series:	--
Part Status:	Obsolete
Main Purpose:	DC/DC, Step Up
Outputs and Type:	1, Non-Isolated
Voltage - Output:	24V
Current - Output:	5A
Voltage - Input:	5 V ~ 14 V
Regulator Topology:	Boost
Frequency - Switching:	330kHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	LTC3814-5

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The DC1170A is a high-performance ac/dc offline switching regulator evaluation board from Texas Instruments. The board is a versatile platform for evaluating several control circuit topologies, including standard peak current mode, constant power, valley control, fixed frequency current-mode, and more. It can also be used to test standard topologies of offline switched mode power supplies (SMPS). The board is ideal for evaluating the performance of current mode and voltage mode converters and regulators and other control techniques for designing SMPS.The DC1170A is a three-board evaluation system which includes the ADP1053A as well as the DC1175A drive board. The ADP1053A board is an SMPS current-mode PWM controller containing several features that make it suitable for offline applications. It provides an adjustable soft start, input under voltage protection, over current protection, under voltage protection, over voltage protection, valley switching, fixed frequency current-mode, and pulse-by-pulse current limit.The DC1175A drive board contains several components required for operating the converter, including a power MOSFET, bias current controller, power supply filter, and complete protection circuitry. It provides additional features such as short-circuit protection, output over voltage protection, over temperature protection, open loop protection, and brownout protection.The DC1170A board is designed for an 80W or 270W completed system. It also takes advantage of the TPS41000 gate driver for enhanced performance. Using this board, engineers can evaluate the design and implementation of high-speed SMPS circuits.The DC1170A board is well suited for designing high-efficiency, low-cost SMPSs. It can also be used to verify the operation of newer control techniques such as valley control and fixed frequency current-mode. By utilizing the evaluation board, designers can quickly develop and test their SMPS designs. Using the board, users are able to evaluate several features such as input under voltage protection, over current protection, under voltage protection, over voltage protection, and valley switching.The working principle of the evaluation board is based on several control techniques such as peak current mode, constant power, and fixed frequency current-mode. In peak current mode, the output voltage is regulated by monitoring the current and comparing it to a reference voltage. In constant power mode, the output voltage is regulated by comparing the output current to a reference current. In fixed frequency current-mode, the output voltage is regulated by monitoring the current and comparing it to a reference voltage at a fixed frequency.In the DC1170A evaluation board, several features are included to improve the performance of the board. These features include adjustable soft start, input under voltage protection, over current protection, under voltage protection, over voltage protection, valley switching, and fixed frequency current-mode. These features make the board ideal for evaluating the performance of current mode and voltage mode converters and regulators and other control techniques for designing SMPS.Overall, the DC1170A is an ideal evaluation board for testing and evaluating various control techniques for SMPS. It can be used to test different methods for regulating output voltage, current, and power. The board also contains several features which make it suitable for offline applications. Using the DC1170A board, engineers can easily evaluate the performance of their SMPS designs and improve the performance of their products.

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