UCC2818 Status: ACTIVE

BiCMOS Power Factor Preregulator

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Datasheet

BiCMOS Power Factor Preregulator (Rev. J) (PDF 810 KB)
11 Mar 2009

	UCC2818	UCC3818
UVLO Thresholds On/Off(V)	10.5/10	10.5/10
Operating Supply(Max)(V)	18	18
Startup Current(mA)	0.15	0.15
Operating Supply Current(mA)	4	4
Vref(V)	7.5	7.5
Vref tol(%)	1.5	1.5
Duty Cycle(Max)(%)	100	100
Practical Operating Frequency(Max)(MHz)	0.25	0.25
Pin/Package	16PDIP, 16SOIC, 16TSSOP	16PDIP, 16SOIC, 16TSSOP
Rating	Catalog	Catalog
	Samples	Samples
	Inventory	Inventory

Other qualified versions of UCC2818

Version	Part Number	Definition
Enhanced Product	UCC2818-EP	Supports Defense, Aerospace and Medical Applications

Customers Who Evaluated This Product Also Evaluated

UCC3818: BiCMOS Power Factor Preregulator
UCC28070: Two-Phase Interleaved CCM PFC Controller
UCC28019A: 8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28600: 8-Pin Quasi Resonant Flyback Green Mode Controller

Product Information

Features

Controls Boost Preregulator to Near-Unity Power Factor
Limits Line Distortion
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
12-V to 17-V Operation
Frequency Range 6 kHz to 220 kHz

Description

The UCCx817/18 family 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 Instrument's BiCMOS process, the UCC2817/UCC2818 offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry, a leading-edge modulation technique to reduce ripple current in the bulk capacitor and an improved, low-offset (±2 mV) current amplifier to reduce distortion at light load conditions.

UCC2817 offers an on-chip shunt regulator with low start-up current, suitable for applications utilizing a bootstrap supply. UCC2818 is intended for applications with a fixed supply (VCC).

Available in the 16-pin D, DW, N and PW 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
UCC2818D	ACTIVE	-40 to 85	1.35 \| 1ku	SOIC (D) \| 16	View	40 \| TUBE
UCC2818DG4	ACTIVE	-40 to 85	1.35 \| 1ku	SOIC (D) \| 16	View	40 \| TUBE
UCC2818DTR	ACTIVE	-40 to 85	1.35 \| 1ku	SOIC (D) \| 16	View	2500 \| LARGE T&R	Purchase Samples
UCC2818DTRG4	ACTIVE	-40 to 85	1.35 \| 1ku	SOIC (D) \| 16	View	2500 \| LARGE T&R	Purchase Samples
UCC2818DW	ACTIVE	-40 to 85	1.60 \| 1ku	SOIC (DW) \| 16	View	40 \| TUBE
UCC2818DWG4	ACTIVE	-40 to 85	1.60 \| 1ku	SOIC (DW) \| 16	View	40 \| TUBE
UCC2818DWTR	ACTIVE	-40 to 85	1.35 \| 1ku	SOIC (DW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
UCC2818DWTRG4	ACTIVE	-40 to 85	1.35 \| 1ku	SOIC (DW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
UCC2818N	ACTIVE	-40 to 85	1.35 \| 1ku	PDIP (N) \| 16	View	25 \| TUBE	Purchase Samples
UCC2818NG4	ACTIVE	-40 to 85	1.35 \| 1ku	PDIP (N) \| 16	View	25 \| TUBE	Purchase Samples
UCC2818PW	ACTIVE	-40 to 85	1.60 \| 1ku	TSSOP (PW) \| 16	View	90 \| TUBE
UCC2818PWG4	ACTIVE	-40 to 85	1.60 \| 1ku	TSSOP (PW) \| 16	View	90 \| TUBE

* 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

Reported Distributor Inventory as of 9:47 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksUCC2818D
Americas	Rochester Electronics	770
Asia	WPI	52
Europe	Compel	90
Europe	Spoerle	440
Worldwide	DigiKey	96
TI Lead Time*: 20 WeeksUCC2818DG4
Americas	Avnet	900
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksUCC2818DTR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksUCC2818DTRG4
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksUCC2818DW
Americas	Arrow	80
Americas	Rochester Electronics	520
Asia	WPI	89
Worldwide	DigiKey	120
Worldwide	Mouser Electronics	160
TI Lead Time*: 4 WeeksUCC2818DWG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksUCC2818DWTR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksUCC2818DWTRG4
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksUCC2818N
Americas	Rochester Electronics	740
Asia	WPI	250
Europe	Avnet-SILICA	100
Europe	Spoerle	100
TI Lead Time*: 4 WeeksUCC2818NG4
None Reported View Distributors
TI Lead Time*: 4 WeeksUCC2818PW
Americas	Rochester Electronics	>1k
Europe	Spoerle	90
Worldwide	DigiKey	102
TI Lead Time*: 4 WeeksUCC2818PWG4
Worldwide	DigiKey	Available
View all Distributors

** 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
UCC2818D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC2818DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC2818DTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC2818DTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC2818DW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC2818DWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC2818DWTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC2818DWTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC2818N	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UCC2818NG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UCC2818PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC2818PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	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

Most useful technical documents for UCC2818

Tools & Software

Name	Part #	Company	Tool / Software Type
UCC3817EVM BiCMOS Power Factor Preregulator EVM	UCC3817EVM	Texas Instruments	Development Boards/EVMs
UCC2817/17A, UCC2818/18A, UCC3817/17A, UCC3818/18A MathCAD file (Rev. A)(ZIP 154 KB ) 286 views 30 Jul 2008

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
UCC3818	BiCMOS Power Factor Preregulator	AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS	TI customers also evaluated this product.
UCC28070	Two-Phase Interleaved CCM PFC Controller	AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS	TI customers also evaluated this product.
UCC28019A	8-Pin Continuous Conduction Mode (CCM) PFC Controller	AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS	TI customers also evaluated this product.
UCC28600	8-Pin Quasi Resonant Flyback Green Mode Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.

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UCC2818 Status: ACTIVE

BiCMOS Power Factor Preregulator

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