UCC28070PWR - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UCC28070PWR
Manufacturer

TI
ChipWorker Part#

CW1311438
Category

Power Management IC
RoHS

Lead free / RoHS Compliant
Description

Power Factor Correction CONTRLR 20mA 30kHz to 300kHz 20Pin TSSOP T/R
Documentation

Datasheet

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UCC28070PWR Specifications

Attribute	Attribute Value

Part Number	UCC28070PWR
Manufacturer	TI
ChipWorker Part#	CW1311438
Category	Power Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	20 Pin
Case/Package	TSSOP-20
Frequency	0.3 MHz
Number of Positions	20 Position
Power Dissipation	800 mW
Switching Frequency	300 kHz
Duty Cycle	95 %
Maximum Duty Cycle	98 %
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	11.2V ~ 21V
Supply Voltage (Max)	21 V
Supply Voltage (Min)	11.2 V
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Size-Length	6.6 mm
Size-Width	1.2 mm
Size-Height	6.6 mm
Operating Temperature	-40℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

DESCRIPTION
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.
FEATURES
• Interleaved Average Current-Mode PWM Control with Inherent Current Matching
• Advanced Current Synthesizer Current Sensing for Superior Efficiency
• Highly-Linear Multiplier Output with Internal Quantized Voltage Feed-Forward Correction for Near-Unity PF
• Programmable Frequency (10 kHz to 300 kHz)
• Programmable Maximum Duty-Cycle Clamp
• Programmable Frequency Dithering Rate and Magnitude for Enhanced EMI Reduction
– Magnitude: 3 kHz to 30 kHz
– Rate: Up to 30 kHz
• External Clock Synchronization Capability
• Enhanced Load and Line Transient Response through Voltage Amplifier Output Slew-Rate
Correction
• Programmable Peak Current Limiting
• Bias-Supply UVLO, Over-Voltage Protection, Open-Loop Detection, and PFC-Enable Monitoring
• External PFC-Disable Interface
• Open-Circuit Protection on VSENSE and VINAC pins
• Programmable Soft Start
• 20-Lead TSSOP Package

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