UC2825Q

Frequency - Switching:	340kHz ~ 460kHz
Base Part Number:	UC2825
Supplier Device Package:	20-PLCC (9x9)
Package / Case:	20-LCC (J-Lead)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Current Limit, Enable, Frequency Control, Ramp, Soft Start
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	80%
Series:	--
Voltage - Supply (Vcc/Vdd):	8.4 V ~ 30 V
Output Phases:	1
Number of Outputs:	2
Topology:	Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tube

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The UC2825Q is an improved version of the popular UC2825 switching controller. This device is used to control the voltage output from a DC to DC converter, and is found in a wide range of applications. In this article we will look at the application field and working principle of the UC2825Q. Application Field of UC2825QThe UC2825Q is a DC to DC switching controller designed to provide the output voltage needed in a wide range of applications. It is especially suitable for non-isolated DC to DC converter topologies such as buck, boost, and SEPIC. It is primarily used in applications where high efficiency, low noise, and a wide operating temperature range are required.Among the many applications for the UC2825Q are cellular phone charger systems, laptop power supplies, portable medical devices, solar power systems, and telecommunications power supplies. It is also used in automotive applications such as power windows and door locks, window defrosters, lights, and navigation systems.Working Principle of UC2825QThe basic working principle of the UC2825Q is to regulate the output voltage of a DC to DC converter. The device accepts a reference voltage, or feedback voltage, which it compares to an internally generated reference. When the difference between the two voltages exceeds a certain threshold, the UC2825Q switches the output of the converter on and off in order to maintain the target voltage.In addition, the UC2825Q includes several protection features such as over-current protection, over-temperature protection, and short-circuit protection. It also has an integrated soft-start feature, which helps to prevent input surge currents when the converter is first powered up.The UC2825Q is available in a variety of packages, including DIP and SOIC. It is also available with solderless header pins, which makes it easy to connect the device to other components.ConclusionThe UC2825Q is a versatile and reliable device for regulating the output voltage of a DC to DC converter. It is used in a wide range of applications, from portable electronics to automotive systems. Its integrated protection features, as well as its low-noise and wide operating temperature features, make it a great choice for any application.

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