ISH1205A

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DC/DC converters are used to efficiently convert a higher voltage into a lower voltage. They can be used for a variety of applications, including powering consumer electronics, controlling motors and running circuit boards. The ISH1205A converter is a highly efficient DC/DC converter designed specifically for applications that require low input voltage, high efficiency and small footprint. This converter is designed to offer a low voltage, high current output at a competitive price.

ISH1205A is a non-isolated TO-220 package DC/DC converter with adjustable output voltage range and supports up to 12A output current. It is capable of providing a fast transient response and high efficiency up to 94%, with wide input voltage range of 6V to 80V. The ISH1205A offers integrated soft-start and thermal protection, as well as integrated EMI and ESD protection. It is highly reliable and ideal for automotive and telecoms applications.

The ISH1205A is suitable for a wide range of applications, including power management, battery charging, motor control, lighting, and more. It is an ideal solution for medical and telecom power supply systems, portable equipment, automotive and consumer products. The converter features a switching frequency of 40kHz, adjustable output voltage range of 6-75V and load current up to 12A.

The working principle of the ISH1205A is based on the buck switching converter topology, which is widely used in different power supply applications. The working principle of the buck converter consists of a high side switch, control circuit, low side switch, and inductor. The high side switch, usually a MOSFET or IGBT, is connected to the input voltage source and is controlled by the control circuit. The control circuit provides the necessary gate drive signals for the high side switch as well as a PWM signal to modulate the output voltage. The low side switch, usually a MOSFET, is connected to the output load and is driven by the same PWM signal. The inductor is placed in series between the input and output and stores energy when the high side switch turns on and releases the stored energy when the low side switch turns on.

The output voltage of the ISH1205A is determined by the input voltage, inductor value, duty cycle of the switch and output load current. The controller adjusts the duty cycle depending on the output current drawn from the converter. The duty cycle is kept between the minimum and maximum range and is based on the equation Vout =Vin*D where D is the duty cycle of the switch. The controller regulates the output voltage of the converter by controlling the duty cycle. This ensures that the output voltage remains constant even when the load or input voltage changes.

The ISH1205A is a highly efficient DC/DC converter, ideal for low voltage, high current applications. It features a wide input voltage range, adjustable output voltage range, fast transient response, high efficiency and low cost. The integrated EMI and ESD protection, as well as over-temperature protection makes it an ideal solution for many applications. The working principle of this converter is based on the buck switching converter topology. The output voltage is regulated by controlling the duty cycle of the switches, which ensures that the output voltage remains constant even when the input or load voltage changes.

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