UCC2802DTRG4

Duty Cycle:	99%
Base Part Number:	UCC2802
Mounting Type:	Surface Mount
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
Fault Protection:	Current Limiting
Frequency - Switching:	Up to 1MHz
Series:	--
Voltage - Supply (Vcc/Vdd):	8.3 V ~ 12 V
Voltage - Start Up:	12.5V
Topology:	Boost, Flyback, Forward
Voltage - Breakdown:	--
Internal Switch(s):	No
Output Isolation:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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UCC2802DTRG4 is an integrated IC package device containing a synchronous buck regulator with a current-mode PWM controller, two high and low-side gate drivers, and two power MOSFETs. This buck regulator is optimized for use in isolated, two-stage, offline AC/DC applications such as desktop, server and consumer power supplies, bridges and other power conversion products. It is intended to convert an AC input to a DC output and provide considered power supply design for these applications. The UCC2802DTRG4 is a voltage regulator that needs no external components. It contains two primary devices, each with its own set of parameters; a Power MOSFET and a Current-Mode Gate Driver. The power MOSFET acts as a switch between the input voltage source and the output load while the current-mode gate driver adjusts the duty cycle of the switch, optimizing the power transfer to the output. When the input voltage exceeds the feedback voltage at the synchronization pins of the device, the current-mode driver will turn on, energizing the Power MOSFET and switching the output voltage to the source, while the output voltage is adjusted through control loop compensation. The internal current-mode PWM controller then regulates the output voltage by adjusting the duty cycle of the switch at the same frequency with which it is energized. The design also includes The UCC2802DTRG4 device is available with different packages to help solve different application needs. The leadless, dual die package of the UCC2802DTRG4 allows for maximum power efficiency by reducing both parasitic capacitance and on-resistance of the switching junctions. With both high- and lowside drivers, this device is ideal for applications requiring high power transfer and high-efficiency, such as those that require two-stage or multi-stage topology.Integrated circuit protection is also an important factor to consider when selecting a power conversion device. The UCC2802DTRG4 has a gate-to-source overvoltage protection (GPP) that senses if there is excessive voltage on the gate of the power MOSFET, and protects the device from burnouts. The device also has an output overvoltage protection (OVP) that is triggered when there is an excessive output voltage, which helps protect the output load.