UCC28070PW - TI

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

Part No

UCC28070PW
Manufacturer

TI
ChipWorker Part#

CW17535533
Category

Power Management IC
Package

TSSOP-20
Description

TEXAS INSTRUMENTS UCC28070PW PFC Controller IC, 11V to 20V & 9mA Supply, 11V Lockout, 95% Duty Cycle, 0.3MHz, TSSOP-20
Documentation

Datasheet

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UCC28070PW Specifications

Attribute	Attribute Value

Part Number	UCC28070PW
Manufacturer	TI
ChipWorker Part#	CW17535533
Category	Power Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	20 Pin
Case/Package	TSSOP-20
Frequency	0.3 MHz
Supply Voltage (DC)	11.0V (min)
Number of Positions	20 Position
Input Current	20.0 mA
Power Dissipation	800 mW
Switching Frequency	300 kHz
Duty Cycle	95 %
Input Voltage (Max)	21 V
Output Voltage (Max)	15 V
Output Current (Max)	0.002 A
Maximum Duty Cycle	98 %
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	800 mW
Supply Voltage	11.2V ~ 21V
Supply Voltage (Max)	20 V
Supply Voltage (Min)	11 V
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Size-Length	6.5 mm
Size-Width	1.2 mm
Size-Height	1.15 mm
Operating Temperature	-40℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Each
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 UCC28070PW is a two-phase interleaved current-mode Power Factor Correction (PFC) Controller with extended frequency range 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, allowing the conducted-EMI filtering to become 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. It 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
Highly-linear multiplier output with internal
Quantized voltage feed-forward correction for near-unity PF
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, overvoltage 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
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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