UCC2803 Status: ACTIVE

Low-Power BiCMOS Current-Mode PWM

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Datasheet

Low-Power BiCMOS Current-Mode PWM (Rev. C) (PDF 0 KB)
12 Jan 2005

	UCC1803	UCC2803	UCC2803-EP	UCC2803-Q1	UCC3803
Topology	Boost, Flyback, Forward	Boost, Flyback, Forward			Boost, Buck, Flyback, Forward
Control Method	Current Mode	Current Mode	Current Mode	Current Mode	Current Mode
Duty Cycle(Max)(%)	100	100	100	100	100
PWM Outputs(#)	1	1	1	1	1
Frequency(Max)(kHz)	1000	1000	1000	1000	1000
UVLO Thresholds On/Off(V)	4.1/3.6	4.1/3.6	4.1/3.6	4.1/3.6	4.1/3.6
Pin/Package	8CDIP	8PDIP, 8SOIC, 8TSSOP	8SOIC	8SOIC	8PDIP, 8SOIC, 8TSSOP
Regulated Outputs(#)	1	1	1	1	1
	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory

Other qualified versions of UCC2803

Version	Part Number	Definition
Automotive	UCC2803-Q1	Q100 devices qualified for high-reliability automotive applications targeting zero defects
Enhanced Product	UCC2803-EP	Supports Defense, Aerospace and Medical Applications
Military	UCC2803M	QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

UCC2808-1: Low Power Current Mode Push-Pull PWM
UC2844: Current-Mode PWM Controller
PTH08T230W: 6-A, 4.5V to 14V Input, Non-Isolated, Wide Output Adjustable Power Module with TurboTrans
TPS74401: Single Output LDO, 3.0A, Adj.(0.8 to 3.3V), Fast Transient Response, Programmable SoftStart
LT1004-1.2: Micropower Integrated Precision Voltage Reference

Product Information

Features

100µA Typical Starting Supply Current
500µA Typical Operating Supply Current
Operation to 1MHz
Internal Soft Start
Internal Fault Soft Start
Internal Leading-Edge Blanking of the Current Sense Signal
1 Amp Totem-Pole Output
70ns Typical Response from Current-Sense to Gate Drive Output
1.5% Tolerance Voltage Reference
Same Pinout as UC3842 and UC3842A

Description

The UCC1800/1/2/3/4/5 family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC1842/3/4/5 family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC1800/1/2/3/4/5 family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC1803 and UCC1805 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC1802 and UCC1804 make these ideal choices for use in off-line power supplies.

The UCC180x series is specified for operation from –55°C to +125°C, the UCC280x series is specified for operation from –40°C to +85°C, and the UCC380x series is specified for operation from 0°C to +70°C.

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
UCC2803D	ACTIVE	-40 to 85	1.90 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
UCC2803DG4	ACTIVE	-40 to 85	1.90 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
UCC2803DTR	ACTIVE	-40 to 85	1.80 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC2803DTRG4	ACTIVE	-40 to 85	1.80 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC2803N	ACTIVE	-40 to 85	1.90 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
UCC2803NG4	ACTIVE	-40 to 85	1.90 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
UCC2803PW	ACTIVE	-40 to 85	2.25 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
UCC2803PWG4	ACTIVE	-40 to 85	2.25 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
UCC2803PWTR	ACTIVE	-40 to 85	1.95 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
UCC2803PWTRG4	ACTIVE	-40 to 85	1.95 \| 1ku	TSSOP (PW) \| 8	View	2000 \| 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

Reported Distributor Inventory as of 9:47 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksUCC2803D
Americas	Arrow	142
Americas	Rochester Electronics	>1k
Asia	WPI	58
Europe	Arrow Southern Europe	73
Europe	Avnet-SILICA	521
TI Lead Time*: 20 WeeksUCC2803DG4
Americas	Avnet	73
TI Lead Time*: 20 WeeksUCC2803DTR
None Reported View Distributors
TI Lead Time*: 20 WeeksUCC2803DTRG4
None Reported View Distributors
TI Lead Time*: 4 WeeksUCC2803N
Americas	Avnet	59
Americas	Rochester Electronics	20
Europe	Avnet-SILICA	100
Worldwide	DigiKey	264
TI Lead Time*: 4 WeeksUCC2803NG4
Europe	EBV Elektronik	150
Worldwide	DigiKey	Available
TI Lead Time*: 1 WeekUCC2803PW
Americas	Avnet	50
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	100
Europe	Farnell	88
Worldwide	Mouser Electronics	125
TI Lead Time*: 1 WeekUCC2803PWG4
None Reported View Distributors
TI Lead Time*: 20 WeeksUCC2803PWTR
Americas	Rochester Electronics	>1k
TI Lead Time*: 20 WeeksUCC2803PWTRG4
None Reported View Distributors
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
UCC2803D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC2803DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC2803DTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC2803DTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC2803N	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UCC2803NG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UCC2803PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC2803PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC2803PWTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC2803PWTRG4	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 UCC2803

Datasheet

Low-Power BiCMOS Current-Mode PWM (Rev. C) (PDF, 0 KB)
12 Jan 2005

Application Notes

Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (HTM, 8 KB) 6605 views
23 Mar 2000 Read Abstract
Understanding Buck-Boost Power Stages in Switchmode Power Supplies (Rev. A) (HTM, 8 KB) 22918 views
28 May 2002 Read Abstract
UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers (HTM, 8 KB) 10989 views
07 Feb 2002 Read Abstract
Differences Between the UCC3813 and the UCC3800 PWM Families (HTM, 8 KB) 2358 views
02 Jun 2000 Read Abstract
DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422 (HTM, 9 KB) 3290 views
05 Sep 1999 Read Abstract
DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply (HTM, 8 KB) 2208 views
05 Sep 1999 Read Abstract
U-111, Practical Considerations in Current Mode Power Supplies (HTM, 8 KB) 11772 views
05 Sep 1999 Read Abstract
DN-46 Highly Efficient Low Power DC to DC Inverter Converts +5V Input to -3V Out (HTM, 8 KB) 1464 views
05 Sep 1999 Read Abstract
DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex (HTM, 8 KB) 2386 views
05 Sep 1999 Read Abstract
DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range (HTM, 8 KB) 3242 views
05 Sep 1999 Read Abstract
U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's (HTM, 9 KB) 5295 views
05 Sep 1999 Read Abstract
DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 (HTM, 8 KB) 5627 views
05 Sep 1999 Read Abstract
DN-65 Considerations in Powering BiCMOS ICs (HTM, 8 KB) 3336 views
05 Sep 1999 Read Abstract

View Application Notes for PWM Power Supply Controllers

Simulation Models

PSpice Model
- UCC3803 PSpice Transient Model (ZIP, 121 KB) 151 views
  07 Jan 2009
TINA-TI Reference Design
- UCC3803 TINA-TI Transient Steady-State Ref Design (TSC, 32 KB) 60 views
  07 Jan 2009
- UCC3803 TINA-TI Transient Start-Up Reference Design (TSC, 40 KB) 86 views
  07 Jan 2009

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
UCC2808-1	Low Power Current Mode Push-Pull PWM	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
UC2844	Current-Mode PWM Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
PTH08T230W	6-A, 4.5V to 14V Input, Non-Isolated, Wide Output Adjustable Power Module with TurboTrans	PLUG-IN POWER MODULES-NON-ISOLATED POL	TI customers also evaluated this product.
TPS74401	Single Output LDO, 3.0A, Adj.(0.8 to 3.3V), Fast Transient Response, Programmable SoftStart	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
LT1004-1.2	Micropower Integrated Precision Voltage Reference	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.
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UCC2803 Status: ACTIVE

Low-Power BiCMOS Current-Mode PWM

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