UCC28070 Series
Automotive two-phase interleaved continuous conduction(CCM) mode PFC controller
Manufacturer: Texas Instruments
Catalog(4 parts)
| Part | Supplier Device Package | Package / Case▲▼ | Package / Case | Frequency - Switching | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Current - Startup▲▼ | Mode | Operating Temperature▲▼ | Operating Temperature▲▼ | Mounting Type | Package / Case▲▼ | Primary Attributes▲▼ | Primary Attributes▲▼ | Primary Attributes▲▼ | Secondary Attributes | Type | Utilized IC / Part | Function | Embedded▲▼ | Supplied Contents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
20-SOIC | 0.007493000011891127 m, 0.007499999832361937 m | 20-SOIC | Adjustable | 11.199999809265137 V | 21 V | 0.019999999552965164 A | Continuous Conduction (CCM) | 125 °C | -40 °C | Surface Mount | |||||||||||
20-TSSOP | 0.004394200164824724 m | 20-TSSOP | Adjustable | 11.199999809265137 V | 21 V | 0.019999999552965164 A | Continuous Conduction (CCM) | 125 °C | -40 °C | Surface Mount | 0.004399999976158142 m | ||||||||||
85 Vrms | 265 Vrms | 0.7699999809265137 A, 300 W, 390 V | Continuous Current Mode | Power Management | UCC28070 | Power Factor Correction | Board(s) | ||||||||||||||
20-TSSOP | 0.004394200164824724 m | 20-TSSOP | Adjustable | 11.199999809265137 V | 21 V | 0.019999999552965164 A | Continuous Conduction (CCM) | 125 °C | -40 °C | Surface Mount | 0.004399999976158142 m |
Key Features
• Qualified for Automotive ApplicationsInterleaved Average Current-Mode PWM Control withInherent Current MatchingAdvanced Current Synthesizer Current Sensing for Superior EfficiencyHighly-Linear Multiplier Output with Internal Quantized VoltageFeed-Forward Correction for Near-Unity PFProgrammable Frequency (30 kHz to 300 kHz)Programmable Maximum Duty-Cycle ClampProgrammable Frequency Dithering Rate and Magnitude forEnhanced EMI ReductionMagnitude: 3 kHz to 30 kHzRate: Up to 30 kHzExternal Clock Synchronization CapabilityEnhanced Load and Line Transient Response through Voltage AmplifierOutput Slew-Rate CorrectionProgrammable Peak Current LimitingBias-Supply UVLO, Over-Voltage Protection, Open-Loop Detection,and PFC-Enable MonitoringExternal PFC-Disable InterfaceOpen-Circuit Protection on VSENSE and VINAC pinsProgrammable Soft Start20-Lead TSSOP PackageQualified for Automotive ApplicationsInterleaved Average Current-Mode PWM Control withInherent Current MatchingAdvanced Current Synthesizer Current Sensing for Superior EfficiencyHighly-Linear Multiplier Output with Internal Quantized VoltageFeed-Forward Correction for Near-Unity PFProgrammable Frequency (30 kHz to 300 kHz)Programmable Maximum Duty-Cycle ClampProgrammable Frequency Dithering Rate and Magnitude forEnhanced EMI ReductionMagnitude: 3 kHz to 30 kHzRate: Up to 30 kHzExternal Clock Synchronization CapabilityEnhanced Load and Line Transient Response through Voltage AmplifierOutput Slew-Rate CorrectionProgrammable Peak Current LimitingBias-Supply UVLO, Over-Voltage Protection, Open-Loop Detection,and PFC-Enable MonitoringExternal PFC-Disable InterfaceOpen-Circuit Protection on VSENSE and VINAC pinsProgrammable Soft Start20-Lead TSSOP Package
Description
AI
The UCC28070 is an advanced power factor correction device that integrates two pulse-width modulators (PWMs) operating 180° out of phase. This interleaved PWM operation generates substantial reduction in the input and output ripple currents, and the conducted-EMI filtering becomes easier and less expensive. A significantly improved multiplier design provides a shared current reference to two independent current amplifiers that ensures matched average current mode control in both PWM outputs while maintaining a stable, low-distortion sinusoidal input line current.
The UCC28070 contains multiple innovations including current synthesis and quantized voltage feed-forward to promote performance enhancements in PF, efficiency, THD, and transient response. Features including frequency dithering, clock synchronization, and slew rate enhancement further expand the potential performance enhancements.
The UCC28070 also contains a variety of protection features including output over-voltage detection, programmable peak-current limit, under-voltage lockout, and open-loop protection.
The UCC28070 is an advanced power factor correction device that integrates two pulse-width modulators (PWMs) operating 180° out of phase. This interleaved PWM operation generates substantial reduction in the input and output ripple currents, and the conducted-EMI filtering becomes easier and less expensive. A significantly improved multiplier design provides a shared current reference to two independent current amplifiers that ensures matched average current mode control in both PWM outputs while maintaining a stable, low-distortion sinusoidal input line current.
The UCC28070 contains multiple innovations including current synthesis and quantized voltage feed-forward to promote performance enhancements in PF, efficiency, THD, and transient response. Features including frequency dithering, clock synchronization, and slew rate enhancement further expand the potential performance enhancements.
The UCC28070 also contains a variety of protection features including output over-voltage detection, programmable peak-current limit, under-voltage lockout, and open-loop protection.