UCC28911D - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UCC28911D
Manufacturer

TI
ChipWorker Part#

CW49272661
Category

DC to DC Converter
Package

SOIC-7
Description

TEXAS INSTRUMENTS UCC28911D AC-DC Off-Line Switcher IC, Flyback, Primary-Side Regulation, 85VAC - 265VAC, 10W, SOIC-7
Documentation

Datasheet

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UCC28911D Specifications

Attribute	Attribute Value

Part Number	UCC28911D
Manufacturer	TI
ChipWorker Part#	CW49272661
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	7 Pin
Case/Package	SOIC-7
Power Rating	10 W
Number of Outputs	1 Output
Output Voltage	5 V
Output Current	1.26 A
Breakdown Voltage	700 V
Number of Positions	7 Position
Switching Frequency	420Hz ~ 115kHz
Topology	Flyback
Input Voltage (Max)	265 V
Input Voltage (Min)	90 V
Input Voltage (AC Max)	265 v
Input Voltage (AC Min)	90 v
Output Voltage (Max)	5.25 V
Output Voltage (Min)	4.75 V
Output Current (Max)	1.26 A
Output Current (Min)	1.14 A
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage (Max)	265 V
Supply Voltage (Min)	90 V
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Size-Length	5 mm
Size-Width	4 mm
Size-Height	1.5 mm
Operating Temperature	-40℃ ~ 125℃ (TJ)
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Contains Lead
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The UCC28911D is a Fly-back Switcher with constant-voltage constant-current and primary-side control. It is high-voltage fly-back switcher that provides output voltage and current regulation without the use of an optical coupler. The device incorporates a 700V power FET and a controller that process operating information from the fly-back auxiliary winding and power FET to provide a precise output voltage and current control. The integrated high-voltage current source for startup that is switched off during device operation and the controller current consumption is dynamically adjusted with load. Control algorithms in the UCC28911 combining switching frequency and peak primary current modulation, allow operating efficiencies to meet or exceed applicable standards. Discontinuous conduction mode (DCM) with valley switching is used to reduce switching losses. Built-in protection features help to keep secondary and primary component stress levels in check across the operating range.
Constant-voltage and constant-current output regulation without optical-coupler
Valley switching and frequency dithering to ease EMI compliance
Thermal shut down
Low line and output overvoltage protection
±5% Output voltage regulation accuracy
±5% Output current regulation with AC line and primary inductance tolerance compensation
700V Start-up and smart power management enables <30mW standby power
115kHz Switching frequency design for high-power density
Green product and no Sb/Br

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