UCC28700DBVR Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Isolation:	Isolated
Internal Switch(s):	No
Voltage - Breakdown:	--
Topology:	Flyback
Voltage - Start Up:	21V
Voltage - Supply (Vcc/Vdd):	9 V ~ 35 V
Duty Cycle:	--
Frequency - Switching:	1kHz ~ 130kHz
Fault Protection:	Current Limiting, Over Voltage
Control Features:	--
Operating Temperature:	-20°C ~ 125°C (TJ)
Package / Case:	SOT-23-6
Supplier Device Package:	SOT-23-6
Mounting Type:	Surface Mount
Base Part Number:	UCC28700

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Ucc28700dbvr is a high voltage, low voltage, linear regulator controller developed by Texas Instruments. It is used to control AC and DC power supplies. It is one of the most popular offline switchers used in industrial applications. Ucc28700dbvr has a wide input voltage operating range and can suit various input voltage requirements. It is easy to use and configure, and it helps reduce system cost by eliminating the need for additional components.The Ucc28700dbvr consists of a 4-bit DAC (Digital-to-Analog Converter) and a gate driver. The gate driver is used to drive the controlled switch of the output power transformer. The 4-bit DAC provides the control signal for the output power transformer. The regulated output voltage is obtained using the voltage feedback control.Ucc28700dbvr application field is mainly for AC and DC power supplies, such as portable electronics, laptop computer adapters, automotive etc. In terms of offline switcher applications, Ucc28700dbvr is widely used in street lightings and home appliances (such as air conditioners, washing machines).Regarding the working principle of Ucc28700dbvr, it employs a voltage feedback control loop in order to maintain the output voltage, where the input voltage is taken from the power source and the output voltage is adjusted based on the predetermined regulated output voltage. The 4-bit DAC determines the output voltage of the power transformer. It continuously adjusts the current output voltage to be in proportion to the reference voltage. The gate driver drives the controlled switch at the output power transformer.The Ucc28700dbvr has the ability to regulate both AC and DC power supply voltages. It operates with a high precision across different applications. It is an ideal choice for low-cost and high performance applications. It is available in a variety of packages and sizes, designed for easy integration and use. The Ucc28700dbvr operates in both constant voltage and constant current peak power modes. It has adjustable over current, over voltage and under voltage protections. It also has multiple control pins and a programmable soft start feature. In conclusion, Ucc28700dbvr is a multi-functional, low-cost and high-precision solution for AC and DC power supplies. It is ideal for use in various industrial and consumer applications, such as portable electronics, laptop computer adapters, street lightings and home appliances. With its adjustable over current, over voltage and under voltage protections, it is one of the most reliable and compact offline switchers used in the market today. It also contains a 4-bit DAC and a gate driver to provide reliable and high-performance voltage regulation.

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