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UCC2819APW +BOM

6kHz-220kHz CCM PFC controller with 10.2V/9.7VUVLO and Smaller Gate Drive Resistor, -40°C to 85°C

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

UCC2819APW
Datasheet:

UCC2819APW Datasheet (PDF)
Mode:

Average Current
Frequency - Switching:

250kHz
Current - Startup:

150 µA
Voltage - Supply:

10.8V ~ 17V
EDA/CAD Models:

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UCC2819APW General Description

The UCC2819A/UCC3819A provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac-input line current waveform to correspond to that of the ac-input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instruments BiCMOS process, the UCC3819A offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry and a leading-edge modulation technique to reduce ripple current in the bulk capacitor.

The UCC3819A allows the output voltage to be programmed by bringing out the error amplifier noninverting input.

The UCC3819A is directly pin for pin compatible with the UCC3819. Only the output stage of UCC3819A has been modified to allow use of a smaller external gate drive resistor values. For some power supply designs where an adequately high enough gate drive resistor can not be used, the UCC3819A offers a more robust output stage at the cost of increasing the internal gate resistances. The gate drive of the UCC3819A remains strong at ±1.2 A of peak current capability.

Available in the 16-pin D, N, and PW packages.

Key Features

Controls Boost Preregulator to Near-Unity Power Factor
World Wide Line Operation
Over-Voltage Protection
Accurate Power Limiting
Average Current Mode Control
Improved Noise Immunity
Improved Feed-Forward Line Regulation
Leading Edge Modulation
150-µA Typical Start-Up Current
Low-Power BiCMOS Operation
10.8-V to 17-V Operation
Programmable Output Voltage (Tracking Boost Topology)

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)PFC (Power Factor Correction)	Series	-
Mode	Average Current	Frequency - Switching	250kHz
Current - Startup	150 µA	Voltage - Supply	10.8V ~ 17V
Operating Temperature	-40°C ~ 85°C	Mounting Type	Surface Mount
Base Product Number	UCC2819	Product Category	Power Factor Correction - PFC
Switching Frequency	250 kHz	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C	Mounting Style	SMD/SMT
Features	Average Current Mode, Enable, OVP	Height	1.15 mm
Length	5 mm	Moisture Sensitive	Yes
Product Type	PFC - Power Factor Correction	Factory Pack Quantity	90
Subcategory	PMIC - Power Management ICs	Type	Power Factor Correction IC
Width	4.4 mm	Unit Weight	0.006102 oz