UCC28070DWR - TI

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

Part No

UCC28070DWR
Manufacturer

TI
ChipWorker Part#

CW2583315
Category

Power Management IC
Package

SOIC-20
Description

TEXAS INSTRUMENTS UCC28070DWR PFC Controller IC, 11.2V to 21V & 20mA Supply, 11.2V Lockout, 50% Duty Cycle, 300kHz, SOIC-20
Documentation

Datasheet

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UCC28070DWR Specifications

Attribute	Attribute Value

Part Number	UCC28070DWR
Manufacturer	TI
ChipWorker Part#	CW2583315
Category	Power Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	20 Pin
Case/Package	SOIC-20
Frequency	300 kHz
Supply Voltage (DC)	11.2V (min)
Number of Positions	20 Position
Power Dissipation	1050 mW
Switching Frequency	300 kHz
Duty Cycle	50 %
Maximum Duty Cycle	98 %
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	11.2V ~ 21V
Supply Voltage (Max)	21 V
Supply Voltage (Min)	11.2 V
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Operating Temperature	-40℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The UCC28070DWR is a 2-phase Interleaved CCM PFC Controller 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.
Interleaved average current-mode PWM control with inherent current matching
Advanced current synthesizer current sensing for superior efficiency
Programmable frequency (30 to 300kHz)
Programmable maximum duty-cycle clamp
Programmable frequency dithering rate and magnitude for enhanced EMI reduction
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
Green product and no Sb/Br
ESD sensitive device, take proper precaution while handling the device.

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