UCC28950TPWRQ1 Engineering Specifications
General Description
The UCC28950TPWRQ1 is an automotive-qualified phase-shifted full-bridge controller manufactured by Texas Instruments. It is specifically designed for high-efficiency isolated DC-to-DC power conversion systems requiring advanced control, high power density, and reliable operation in demanding automotive and industrial environments.
The device implements phase-shifted pulse-width modulation control with programmable dead-time management to achieve zero-voltage switching across a wide load range. This soft-switching architecture significantly reduces switching losses, improves overall efficiency, minimizes electromagnetic interference, and enables higher switching-frequency operation.
The controller integrates comprehensive protection and monitoring functions, including current limiting, overvoltage protection, soft-start control, and fault management. Its flexible architecture supports a wide variety of isolated power-supply topologies used in electric vehicles, onboard charging systems, telecommunications infrastructure, industrial power supplies, and high-performance DC-DC converters.
Qualified to automotive reliability standards, the device is suitable for mission-critical applications requiring long-term operational stability and robust power-conversion performance.
Engineering Specifications
Manufacturer: Texas Instruments
Manufacturer Part Number: UCC28950TPWRQ1
Component Type: Phase-shifted full-bridge PWM controller
Technology: Advanced mixed-signal power-management integrated circuit
Control Method: Phase-shifted pulse-width modulation
Converter Topology: Full-bridge isolated DC-to-DC converter control
Switching Technique: Zero-voltage switching support
Efficiency Enhancement: Reduced switching losses through soft-switching operation
Dead-Time Control: Programmable adaptive dead-time management
Gate Drive Outputs: High-current complementary PWM outputs
Current Control: Cycle-by-cycle current limiting capability
Soft-Start Function: Programmable startup control
Synchronization Capability: External synchronization support
Frequency Control: Programmable switching frequency operation
Feedback Architecture: Closed-loop voltage regulation support
Fault Management: Integrated fault detection and shutdown capability
Protection Features: Overcurrent protection, overvoltage protection, undervoltage lockout, fault shutdown, and soft-start protection
Automotive Qualification: AEC-Q100 qualified
Reliability Grade: Automotive-grade performance and reliability
Electromagnetic Compatibility: Optimized for low-noise power-conversion applications
Power Supply Configuration: Single-controller power-management operation
Temperature Stability: Designed for extended automotive operating conditions
Control Flexibility: Supports a wide range of isolated converter designs
System Integration: Compatible with high-power MOSFET and IGBT switching stages
Operating Temperature Range: Automotive temperature range
Package Type: Thin Shrink Small Outline Package
Package Configuration: Surface-mount package
Mounting Style: Surface mount technology
Environmental Compliance: RoHS compliant and lead-free
Quality Standard: Automotive production and qualification standards
Typical Applications
Automotive DC-to-DC converters
Electric vehicle power systems
Battery management systems
Onboard charging equipment
Telecommunications power supplies
Industrial power converters
High-power isolated DC-DC modules
Server and networking power systems
Renewable energy conversion systems
Automotive auxiliary power units
Motor control power supplies
Power-distribution architectures
High-efficiency switching power supplies
Advanced automotive electronics
Mission-critical power-management systems
