UCC28700EVM-068

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Texas Instruments

UCC28700 CURRENT MODE PWM CONTROLLER 4.75V TO 5.25V OUTPUT EVALUATION BOARD

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UCC28700EVM-068

Active

Texas Instruments

UCC28700 CURRENT MODE PWM CONTROLLER 4.75V TO 5.25V OUTPUT EVALUATION BOARD

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Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC28700EVM-068

Board Type	Fully Populated
Current - Output	1 A
Main Purpose	Primary Side, AC/DC
Outputs and Type	Isolated
Outputs and Type	1
Power - Output	5 W
Regulator Topology	Flyback
Supplied Contents	Board(s)
Utilized IC / Part	UCC28700
Voltage - Input [Max]	240 VAC
Voltage - Input [Min]	100 VAC
Voltage - Output	5 V

UCC28700-Q1 Series

Compact primary-side regulation PWM controller with automotive grade

Part	Board Type	Supplied Contents	Voltage - Input [Max]	Voltage - Input [Min]	Current - Output	Outputs and Type	Outputs and Type	Voltage - Output	Main Purpose	Utilized IC / Part	Regulator Topology	Power - Output	Mounting Type	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Output Isolation	Topology	Voltage - Start Up	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Frequency - Switching [Min]	Frequency - Switching [Max]	Fault Protection	Qualification	Grade
Texas Instruments UCC28700EVM-068	Fully Populated	Board(s)	240 VAC	100 VAC	1 A	Isolated	1	5 V	AC/DC Primary Side	UCC28700	Flyback	5 W
Texas Instruments UCC28700DBVT													Surface Mount	35 V	9 V	Isolated	Flyback	21 V	SOT-23-6	-20 °C	125 ¯C	SOT-23-6	1 kHz	130 kHz	Current Limiting Over Voltage
Texas Instruments UCC28700DBVR													Surface Mount	35 V	9 V	Isolated	Flyback	21 V	SOT-23-6	-20 °C	125 ¯C	SOT-23-6	1 kHz	130 kHz	Current Limiting Over Voltage
Texas Instruments UCC28700QDBVRQ1													Surface Mount	35 V	9 V	Isolated	Flyback	21 V	SOT-23-6	-40 °C	125 ¯C	SOT-23-6	1 kHz	130 kHz	Current Limiting Over Voltage	AEC-Q100	Automotive

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Box	1	$ 58.80

Description

General part information

UCC28700-Q1 Series

The UCC28700-Q1 of flyback power supply controllers provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Low start-up current, dynamically controlled operating states and a tailored modulation profile support very low standby power without sacrificing start-up time or output transient response.

Control algorithms in the UCC28700-Q1 allows operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET power switch. Discontinuous Conduction Mode (DCM) with valley switching reduces switching losses. Modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.

The controllers have a maximum switching frequency of 130 kHz and always maintain control of the peak-primary current in the transformer. Protection features help keep primary and secondary component stresses in check. The UCC28700-Q1 allows the level of cable compensation to be programmed.

Documents

Technical documentation and resources