Integrated Circuits (ICs)

UCC28950PW

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GREEN PHASE-SHIFTED FULL-BRIDGE CONTROLLER WITH SYNCHRONOUS RECTIFICATION CONTROL

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DocumentsAdvancing Power Supply Solutions Through the Promise of GaN Pre-biased Output Voltage Startup Operation of the UCC28950 +12

Integrated Circuits (ICs)

UCC28950PW

Active

Texas Instruments

GREEN PHASE-SHIFTED FULL-BRIDGE CONTROLLER WITH SYNCHRONOUS RECTIFICATION CONTROL

Deep-Dive with AI

DocumentsAdvancing Power Supply Solutions Through the Promise of GaN Pre-biased Output Voltage Startup Operation of the UCC28950 +12

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC28950PW

Clock Sync	True
Control Features	Enable, Frequency Control, Soft Start, Dead Time Control
Duty Cycle (Max) [Max]	95 %
Frequency - Switching [Max]	1 MHz
Frequency - Switching [Min]	50 kHz
Function	Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	6
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	24-TSSOP
Package / Case [x]	4.4 mm
Package / Case [x]	0.173 in
Supplier Device Package	24-TSSOP
Synchronous Rectifier	True
Topology	Full-Bridge
Voltage - Supply (Vcc/Vdd) [Max]	17 V
Voltage - Supply (Vcc/Vdd) [Min]	8 V

UCC28950 Series

Green phase-shifted full-bridge controller with Synchronous Rectification control

Part	Output Phases	Output Configuration	Number of Outputs	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Frequency - Switching [Min]	Frequency - Switching [Max]	Topology	Output Type	Duty Cycle (Max) [Max]	Control Features	Supplier Device Package	Mounting Type	Package / Case [x]	Package / Case [x]	Package / Case	Function	Operating Temperature [Min]	Operating Temperature [Max]	Grade	Qualification	Supplied Contents	Outputs and Type	Outputs and Type	Board Type	Power - Output	Voltage - Input [Min]	Voltage - Input [Max]	Utilized IC / Part	Regulator Topology	Contents	Current - Output	Voltage - Output	Main Purpose
Texas Instruments UCC28950PW	1	Positive	6	8 V	17 V	50 kHz	1 MHz	Full-Bridge	Transistor Driver	95 %	Dead Time Control Enable Frequency Control Soft Start	24-TSSOP	Surface Mount	4.4 mm	0.173 in	24-TSSOP	Step-Up/Step-Down	-40 C	125 °C
Texas Instruments UCC28950PWR	1	Positive	6	8 V	17 V	50 kHz	1 MHz	Full-Bridge	Transistor Driver	95 %	Dead Time Control Enable Frequency Control Soft Start	24-TSSOP	Surface Mount	4.4 mm	0.173 in	24-TSSOP	Step-Up/Step-Down	-40 C	125 °C
Texas Instruments UCC28950QPWRQ1	1	Positive	6	8 V	17 V	50 kHz	1 MHz	Full-Bridge	Transistor Driver	95 %	Dead Time Control Enable Frequency Control Soft Start	24-TSSOP	Surface Mount	4.4 mm	0.173 in	24-TSSOP	Step-Up/Step-Down	-40 C	125 °C	Automotive	AEC-Q100
Texas Instruments UCC28950EVM-442																						Board(s)	1 Isolated Output Isolated	1	Fully Populated	600 W	370 V	410 V	UCC28950-442	Full-Bridge	Board(s)	50 A	12 V	DC/DC Step Down
Texas Instruments UCC28950TPWRQ1	1	Positive	6	8 V	17 V	50 kHz	1 MHz	Full-Bridge	Transistor Driver	95 %	Dead Time Control Enable Frequency Control Soft Start	24-TSSOP	Surface Mount	4.4 mm	0.173 in	24-TSSOP	Step-Up/Step-Down	-40 °C	105 °C	Automotive	AEC-Q100

Pricing

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

Distributor	Package	Quantity	$

Digikey	N/A	181	$ 7.45
	Tube	1	$ 6.66
		10	$ 6.02
		60	$ 5.74
		120	$ 4.98
		300	$ 4.76
		540	$ 4.34
		1020	$ 3.78
		2520	$ 3.64
Texas Instruments	TUBE	1	$ 5.10
		100	$ 4.16
		250	$ 3.27
		1000	$ 2.77

Description

General part information

UCC28950 Series

The UCC28951 controller is an enhanced version of the UCC28950. It is a fully compatible drop-in replacement for the UCC28950. The UCC2895x devices use advanced control of the full-bridge in addition to active control of the synchronous rectifier (SR) output stage.

ZVS operation ensured over a wide range of operating conditions, while the load current naturally tunes the switching delays of the secondary-side synchronous rectifiers(SR). This functionality maximizes overall system efficiency.

Easily get started with the UCC2895x 600W phase shifted full bridge design review/application note,