UCC28950PWR

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Texas Instruments

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

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UCC28950PWR

Active

Texas Instruments

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

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Description Specifications Series Pricing CAD Documents

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,

Technical Specifications

Parameters and characteristics for this part

Specification	UCC28950PWR

Clock Sync	Yes
Control Features	Enable, Soft Start, Dead Time Control, Frequency Control
Duty Cycle (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 Length	0.173 in
Package Name	24-TSSOP
Package Width	4.4 mm
Synchronous Rectifier	Yes
Topology	Full-Bridge
Voltage - Supply (Vcc/Vdd) Maximum	17 V
Voltage - Supply (Vcc/Vdd) Minimum	8 V

UCC28950 Series

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

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