CHL8325A-64CRT

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CHL8325A-64CRT is a highly advanced DC DC switching controller, designed to provide optimal power conversion performance and ease of use. The device is capable of operating in both Step Down and Step Up converter topologies. It is designed to meet the challenging requirements of automotive, industrial and consumer power systems, offering highest efficiency and robust high-speed current sensing for minimal switching losses.

The CHL8325A-64CRT features a versatile input voltage range from 4.5V to 80V, enabling it to generate output voltages from 0.6V to 80V. The device is capable of delivering up to 5A current with the integrated MOSFET driver. The integrated MOSFET driver is further enhanced with pulse-by-pulse current limit, adjustable reference voltage and multiple control loop response settings for superior stability, accuracy and efficiency. The CHL8325A-64CRT also features integrated protection features such as cycle-by-cycle current limiting, soft start, pulse-width modulation (PWM) or Pulse-Frequency Modulation (PFM) operation.

The CHL8325A-64CRT is widely used in automotive, industrial and consumer applications where precision and cost effectiveness is a priority. Typical applications include DC-DC converters for alternative energy sources, as well as power conditioning for battery chargers, lighting and trade show equipment. The CHL8325A-64CRT is also ideal for UPS systems, medical equipment, gaming devices, and power tools.

The CHL8325A-64CRT achieves its efficient power conversion performance by employing a peak current mode enhanced PWM control loop. The device is designed to detect inductor current and automatically control switching of the MOSFET. Optimal operation is ensured through the use of an intelligent gating scheme that reduces ripple current ensuring stability of the output, even under high load conditions. The constant on-time PWM control loop ensures highest efficiency over wide input and output voltage and current ranges. The device is also capable of soft-start, which limits the inrush current and hence reduces the size of start-up capacitors, which further reduces cost and size of applications.

The CHL8325A-64CRT is also capable of achieving input current limit and operating in PFM mode for ultra low no-load power modes. The device is protected by fault protection features including under voltage lockout (UVLO), overvoltage protection (OVP), and over current protection (OCP). The CHL8325A-64CRT is housed in a thermally enhanced 5x6x0.9mm package and is guaranteed for operation over an extended temperature range of -40 to +105 °C. This extended temperature range make the device suitable for automotive and industrial applications. With its ultra-high efficiency, power density and cost efficiency, the CHL8325A-64CRT is a perfect choice for automotive, industrial, and consumer applications.

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