UCC28950-Q1 Series

Automotive 8V to 20V full-bridge, phase-shifted PWM controller with synchronous rectification

Catalog

Automotive 8V to 20V full-bridge, phase-shifted PWM controller with synchronous rectification

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

Catalog

Automotive 8V to 20V full-bridge, phase-shifted PWM controller with synchronous rectification

Key Features

• Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification level H2Device CDM ESD classification level C3BEnhanced zero-voltage switching (ZVS) rangeDirect synchronous rectifier (SR) controlLight-load efficiency management including:Burst mode operationDiscontinuous conduction mode (DCM), dynamic SR on/off controlAverage- or peak-current mode control with programmable slope compensation and voltage-mode controlClosed-loop soft-start and enable functionProgrammable switching frequency up to 1 MHz with bidirectional synchronization(±3%) cycle-by-cycle current limit protection with hiccup mode support150µA start-up currentVDD undervoltage lockoutWide temperature range: –40°C to +125°CQualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification level H2Device CDM ESD classification level C3BEnhanced zero-voltage switching (ZVS) rangeDirect synchronous rectifier (SR) controlLight-load efficiency management including:Burst mode operationDiscontinuous conduction mode (DCM), dynamic SR on/off controlAverage- or peak-current mode control with programmable slope compensation and voltage-mode controlClosed-loop soft-start and enable functionProgrammable switching frequency up to 1 MHz with bidirectional synchronization(±3%) cycle-by-cycle current limit protection with hiccup mode support150µA start-up currentVDD undervoltage lockoutWide temperature range: –40°C to +125°C

Description

The UCC28951-Q1 controller is an enhanced version of the UCC28950-Q1. It is a fully compatible drop-in replacement for the UCC28950-Q1. Refer to application noteMaking the Correct Choice: UCC28950-Q1 or UCC28951-Q1to determine which controller to use.The UCC2895x-Q1 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-Q1 600W phase shifted full bridge design review/application note, The 24-pin, TSSOP package complies with RoHS requirements. The UCC28951-Q1 controller is an enhanced version of the UCC28950-Q1. It is a fully compatible drop-in replacement for the UCC28950-Q1. Refer to application noteMaking the Correct Choice: UCC28950-Q1 or UCC28951-Q1to determine which controller to use.The UCC2895x-Q1 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-Q1 600W phase shifted full bridge design review/application note, The 24-pin, TSSOP package complies with RoHS requirements.