UCC2800NG4

Frequency - Switching:	46kHz
Base Part Number:	UCC2800
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	99%
Series:	--
Voltage - Supply (Vcc/Vdd):	6.9 V ~ 12 V
Output Phases:	1
Number of Outputs:	1
Topology:	Boost, Flyback, Forward Converter
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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The UCC2800NG4 is a DC DC switching controller designed to convert the input voltage to a regulated output voltage with high efficiency. It is a popular choice for applications such as DC-DC converters, power supplies, and motor control. The device is optimized for low voltage, high current applications and offers an integrated comparator, Pulse-Width Modulation (PWM) control, and internal undervoltage lockout. To achieve high efficiency and good performance, the UCC2800NG4 has a low minimum operating voltage, low start-up current, low quiescent current, true zero off-time capability, and a high maximum duty cycle. Additionally, the device offers a fast response to step changes in load, input voltage, and other dynamic conditions. Application FieldThe UCC2800NG4 is well-suited to wide range of applications and is frequently used in consumer electronics, telecommunications, automotive, and industrial applications. In consumer electronics, it is often seen in devices such as battery-operated consumer devices, portable medical equipment, and industrial instrumentation and control systems. In automotive applications, it is used in voltage regulators and battery chargers. In industrial applications, the UCC2800NG4 is ideal for use in Intelligent Power Modules, motor drives, SMPS, UPS, solenoid and valve control, and motor control. Working PrincipleThe UCC2800NG4 is a DC-DC controller that uses a pulse-width modulated input signal to control the output voltage. The device is designed to use a constant frequency, variable-width pulse signal to maintain a regulated output voltage across a wide range of loads. The device integrates a comparator, which monitors the output voltage feedback signal, and adjusts the PWM width to ensure the specified output voltage is maintained. The UCC2800NG4 is equipped with two control pins, CTRL1 and CTRL2, which allow for further customization of the output voltage. These pins allow the user to adjust the step-up or step-down ratio of the output voltage, as well as the number of pulses from the PWM signal. The UCC2800NG4 also includes an internal undervoltage lockout, which will stop the device from operating when the input voltage is below a predetermined level. This feature prevents unsafe operating conditions and safeguards the device against damage. ConclusionThe UCC2800NG4 is a versatile DC-DC switching controller that offers the user a range of features, such as a low minimum operating voltage, low start-up current, low quiescent current, true zero off-time capability, a high maximum duty cycle, and an internal undervoltage lockout. The device is well-suited to applications in consumer electronics, telecommunications, automotive, and industrial applications. The device uses a pulse-width modulated input signal to control the output voltage and is designed to use a constant frequency, variable-width pulse signal to maintain a regulated output voltage across a wide range of loads.

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