UC3854 Status: ACTIVE

High Power Factor Preregulator

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Datasheet

High Power Factor Preregulator (uc3854.pdf, 475 KB)
05 Sep 1999 Download

	UC1854	UC2854	UC3854
UVLO Thresholds On/Off(V)	16/10	16/10	16/10
Operating Supply(Max)(V)	30	30	30
Startup Current(mA)	1.5	1.5	1.5
Operating Supply Current(mA)	10	10	10
Vref(V)	7.5	7.5	7.5
Vref tol(%)	1.3	1.3	1.3
Duty Cycle(Max)(%)	95	95	95
Practical Operating Frequency(Max)(MHz)	0.2	0.2	0.2
Pin/Package	16CDIP	16PDIP,16SOIC	16PDIP,16SOIC,20PLCC
Rating	Military	Catalog	Catalog
	Samples	Samples	Samples
	Inventory	Inventory	Inventory

Other qualified versions of UC3854

Version	Part Number	Definition
Military	UC1854	QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

UC3854A: Enhanced High Power Factor Preregulator
UCC28019: 8-Pin Continuous Conduction Mode (CCM) PFC Controller
UC3854B: Enhanced High Power Factor Preregulator
UCC3895: BiCMOS Advanced Phase Shift PWM Controller
TPS76201: Single Output LDO, 100mA, Adj.(0.7 to 5.5V), Low Quiescent Current, Over Current Limitation
BQ2057W: Low Dropout Linear 2-cell Li-Ion Charge Controller with AutoCompTM, 8.4V

Product Information

Features

Control Boost PWM to 0.99 Power Factor
Limit Line Current Distortion To <5%
World-Wide Operation Without Switches
Feed-Forward Line Regulation
Average Current-Mode Control
Low Noise Sensitivity
Low Start-Up Supply Current
Fixed-Frequency PWM Drive
Low-Offset Analog Multiplier/Divider
1A Totem-Pole Gate Driver
Precision Voltage Reference

Description

The UC1854 provides active power factor correction for power systems that otherwise would draw non-sinusoidal current from sinusoidal power lines. This device implements all the control functions necessary to build a power supply capable of optimally using available power-line current while minimizing line-current distortion. To do this, the UC1854 contains a voltage amplifier, an analog multiplier/divider, a current amplifier, and a fixed-frequency PWM. In addition, the UC1854 contains a power MOSFET compatible gate driver, 7.5V reference, line anticipator, load-enable comparator, low-supply detector, and over-current comparator.

The UC1854 uses average current-mode control to accomplish fixed-frequency current control with stability and low distortion. Unlike peak current-mode, average current control accurately maintains sinusoidal line current without slope compensation and with minimal response to noise transients.

The UC1854�s high reference voltage and high oscillator amplitude minimize noise sensitivity while fast PWM elements permit chopping frequencies above 200kHz. The UC1854 can be used in single and three phase systems with line voltages that vary from 75 to 275 volts and line frequencies across the 50Hz to 400Hz range. To reduce the burden on the circuitry that supplies power to this device, the UC1854 features low starting supply current.

These devices are available packaged in 16-pin plastic and ceramic dual in-line packages, and a variety of surface-mount packages.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
UC3854DW	ACTIVE	0 to 70	1.45 \| 100u	SOIC (DW) \| 16	View	40 \| TUBE
UC3854DWG4	ACTIVE	0 to 70	1.45 \| 100u	SOIC (DW) \| 16	View	40 \| TUBE
UC3854DWTR	ACTIVE	0 to 70	1.60 \| 100u	SOIC (DW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
UC3854DWTR-FG4	ACTIVE	0 to 70	1.45 \| 100u	SOIC (DW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
UC3854DWTRG4	ACTIVE	0 to 70	1.60 \| 100u	SOIC (DW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
UC3854N	ACTIVE	0 to 70	1.45 \| 100u	PDIP (N) \| 16	View	25 \| TUBE
UC3854NG4	ACTIVE	0 to 70	1.45 \| 100u	PDIP (N) \| 16	View	25 \| TUBE
UC3854Q	ACTIVE	0 to 70	1.45 \| 100u	PLCC (FN) \| 20	View	46 \| TUBE	Purchase Samples
UC3854QG3	ACTIVE	0 to 70	1.45 \| 100u	PLCC (FN) \| 20	View	46 \| TUBE	Purchase Samples
UC3854QTR	ACTIVE	0 to 70	1.60 \| 100u	PLCC (FN) \| 20	View	1000 \| LARGE T&R	Purchase Samples
UC3854QTRG3	ACTIVE	0 to 70	1.60 \| 100u	PLCC (FN) \| 20	View	1000 \| LARGE T&R	Purchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

	TI Inventory Status			Reported Distributor Inventory
UC3854DW	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 1 Dec	4 Weeks	Americas	Avnet	>1k
					DigiKey	>1k
					Mouser Electronics	728
					Newark	45
					Rochester Electronics	>1k
				Asia	WPI	89
				Europe	Arrow Northern Europe	540
				Europe	Spoerle	240
UC3854DWG4	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 1 Dec	4 Weeks	Europe	EBV Elektronik	120
	0*		4 Weeks	Europe	Farnell	169
UC3854DWTR	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	240 \| 1 Dec	8 Weeks	Americas	Rochester Electronics	139
	0*	>10k \| 2 Dec	8 Weeks
UC3854DWTR-FG4	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	>10k \| 2 Dec	6 Weeks	None Reported View Distributors
UC3854DWTRG4	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	240 \| 1 Dec	8 Weeks	None Reported View Distributors
	0*	>10k \| 2 Dec	8 Weeks
UC3854N	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	2550 \| 21 Nov	8 Weeks	Americas	Arrow	>1k
		8316 \| 24 Nov			Avnet	380
					DigiKey	94
					Mouser Electronics	782
					Newark	674
					Rochester Electronics	944
				Asia	WPI	372
				Europe	Arrow Northern Europe	550
					Arrow Southern Europe	250
					Avnet-SILICA	925
					Farnell	432
UC3854NG4	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	2550 \| 21 Nov	8 Weeks	Americas	Avnet	790
		8316 \| 24 Nov		Americas	Mouser Electronics	938
				Europe	EBV Elektronik	575
UC3854Q	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1610*	>10k \| 15 Dec	6 Weeks	Americas	Mouser Electronics	225
	1610*		6 Weeks	Americas	Rochester Electronics	>1k
UC3854QG3	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1610*	>10k \| 15 Dec	6 Weeks	None Reported View Distributors
UC3854QTR	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	4000*	5845 \| 14 Nov	6 Weeks	Americas	Arrow	1k
		>10k \| 2 Jan			Avnet	1k
					Rochester Electronics	>1k
UC3854QTRG3	As of 7:50 AM GMT, 05 Oct 2008			As of 7:50 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	4000*	5845 \| 14 Nov	6 Weeks	None Reported View Distributors
	4000*	>10k \| 2 Jan	6 Weeks
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
UC3854DW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UC3854DWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UC3854DWTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UC3854DWTR-FG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UC3854DWTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UC3854N	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UC3854NG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UC3854Q	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
UC3854QG3	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
UC3854QTR	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
UC3854QTRG3	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

High Power Factor Preregulator (uc3854.pdf, 475 KB)
05 Sep 1999 Download

Application Notes

AC Requirements for Power Factor Correction Circuits (slua263.pdf, 29 KB)
28 Mar 2002 Download
Accurate PWM Duty Cycle Clamp (slua253.htm, 8 KB)
25 Jan 2002 Abstract
U-134 UC3854 Controlled Power Factor Correction Circuit Design (slua144.htm, 9 KB)
05 Sep 1999 Abstract
DN-41 Extend Current Transformer Range (slua174.htm, 8 KB)
05 Sep 1999 Abstract
DN-39E Optimizing Performance in UC3854 Power Factor Correction Applications (slua172.htm, 8 KB)
05 Sep 1999 Abstract

View Application Notes for Power Factor Correction ICs

User Guides

View User Guides for Power Factor Correction ICs

Tools & Software

Name	Part #	Company	Tool / Software Type
UCC28070 Evaluation module	UCC28070EVM	Texas Instruments	Development Boards/EVMs

Alternative Products - Are similar to UC3854
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
UC3854A	Enhanced High Power Factor Preregulator	TI customers also evaluated this product.
UCC28019	8-Pin Continuous Conduction Mode (CCM) PFC Controller	TI customers also evaluated this product.
UC3854B	Enhanced High Power Factor Preregulator	TI customers also evaluated this product.

Complementary Products - Can be used with UC3854
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
UCC3895	BiCMOS Advanced Phase Shift PWM Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
TPS76201	Single Output LDO, 100mA, Adj.(0.7 to 5.5V), Low Quiescent Current, Over Current Limitation	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
BQ2057W	Low Dropout Linear 2-cell Li-Ion Charge Controller with AutoCompTM, 8.4V	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
TL431B	Adjustable Precision Shunt Regulator	REFERENCES-SHUNT VOLTAGE REFERENCES	TI customers also evaluated this product.
TPS75733	Single Output LDO, 3.0A, Fixed(3.3V), Fast Transient Response, Low Quiescent Current	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS2211A	1A Single-Slot PC Card Power Switch w/ Parallel Interface	PCMCIA AND USB-PCMCIA/CARDBUS SWITCH MATRIX	TI customers also evaluated this product.
TPS65010	Multi-Channel 1-cell Li-Ion Power Mgmt IC: USB/AC Charger, 2DC/DC, 2 LDOs, I2C interface in QFN-48	POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER	TI customers also evaluated this product.
PTN78020W	6-A Wide-Input Voltage Adjustable Switching Regulator	PLUG-IN POWER MODULES-NON-ISOLATED POL	TI customers also evaluated this product.
TPS75533	Single Output LDO, 5.0A, Fixed(3.3V), Low Quiescent Current, Fast Transient Response	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
UCC39002	Advanced 8 Pin Loadshare Controller	POWER SUPPLY SUPPORT-LOADSHARE	TI customers also evaluated this product.

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UC3854 Status: ACTIVE

High Power Factor Preregulator

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