UCC2808D-2G4

Frequency - Switching:	194kHz
Base Part Number:	UCC2808-2
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	49%
Series:	--
Voltage - Supply (Vcc/Vdd):	4.1 V ~ 15 V
Output Phases:	1
Number of Outputs:	2
Topology:	Push-Pull
Output Configuration:	Positive
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

UCC2808D-2G4 Application Field and Working Principle

The UCC2808D-2G4 is a primary switching-mode DC/DC controller designed for a wide range of off-line, post-regulator and active rectifier applications. It is designed to drive one or two N-Channel MOSFETs or IGBTs for isolated power supplies. This dual function controller operates in boundary or continuous conduction mode depending on an external resistor.The UCC2808D-2G4 features:- Powered from µP or digital logic- Drives one or two N-Channel MOSFETs- Resonant Ratio Adjustable with Internal Oscillator- Dual High Current Outputs- Hardness of Waveform with Y slider Adjust- Frequency Adjustable - Internal UVLO Protection- Transformer Regulation The UCC2808D-2G4 is mainly intended for off-line or post-regulator applications, including those requiring dual N-channel MOSFET control and a wide operating frequency range. This device operates from 4.5V to 35V input voltage ranges and delivers an output voltage of 1.2V to 37V. Maximum output current is 4A. UCC2808D-2G4 is capable of operating efficiently in continuous conduction mode (CCM) or boundary conduction mode (BCM) by adjusting an external resistor. It has internal UVLO protection and a frequency range (fsw) can be adjusted to 500-2,000kHz by an external resistor.The UCC2808D-2G4 employs a unique patented transistorized primary control circuit to provide superior regulation performance. This includes short-cycle protection and feed-forward control, which enables superior regulation even when the load current is changing rapidly. This feature also allows for excellent dynamic response during sub-cycle glitches.The UCC2808D-2G4 can be used for a variety of applications, such as DC-DC converters, AC-DC converters, battery chargers, voltage regulators, switch mode power supplies, and PWM-controlled drivers. It can also be used in situations where two isolated supplies are necessary, such as in isolated power systems, isolated data links, and multiple unit systems.The standard operational modes for the UCC2808D-2G4 include soft-start, frequency hopping, forced fixed frequency, and symmetrical duty cycle. The device also supports an adjustable duty cycle. This allows the power supply to respond quickly to changes in the input voltage and load current.UCC2808D-2G4 provides an integrated, safe power switch with a low-side N-channel MOSFET and high-side N-channel MOSFET to deliver improved efficiency and lower power loss. It also supports bi-directional operation, which can be used to terminate a power supply in the event of an overcurrent or overtemperature fault.UCC2808D-2G4 is designed for applications where reliability and performance are of utmost importance. It features integrated EMI/RFI filters, high-power capability, superior transient response, low start-up current requirements, and direct interface to the microcontroller/digital logic.In conclusion, the UCC2808D-2G4 is an excellent choice for DC-DC, AC-DC, or active rectifier applications requiring a wide range of operating frequencies and power levels. It offers superior regulation for rapid load current changes and integrated protection for safe operation.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description