UCC2803 Status: ACTIVE

Low-Power BiCMOS Current-Mode PWM

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Datasheet

Low-Power BiCMOS Current-Mode PWM (Rev. C) (ucc2803.pdf, 575 KB)
12 Jan 2005 Download

	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

TPS54331: 3A, 28V Input Step Down SWIFT(tm) DC/DC Converter with Eco-mode(tm)

TPS54383: Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 300 kHz

TPS54286: Dual 2A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz

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	2.25 \| 100u	SOIC (D) \| 8	View	75 \| TUBE
UCC2803DG4	ACTIVE	-40 to 85	2.25 \| 100u	SOIC (D) \| 8	View	75 \| TUBE
UCC2803DTR	ACTIVE	-40 to 85	2.25 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC2803DTRG4	ACTIVE	-40 to 85	2.25 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC2803N	ACTIVE	-40 to 85	2.25 \| 100u	PDIP (P) \| 8	View	50 \| TUBE
UCC2803NG4	ACTIVE	-40 to 85	2.25 \| 100u	PDIP (P) \| 8	View	50 \| TUBE
UCC2803PW	ACTIVE	-40 to 85	2.30 \| 100u	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
UCC2803PWG4	ACTIVE	-40 to 85	2.30 \| 100u	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
UCC2803PWTR	ACTIVE	-40 to 85	2.40 \| 100u	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
UCC2803PWTRG4	ACTIVE	-40 to 85	2.40 \| 100u	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

	TI Inventory Status			Reported Distributor Inventory
UCC2803D	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 17 Dec	4 Weeks	Americas	Arrow	396
					Avnet	95
					Newark	108
					Rochester Electronics	>1k
				Asia	WPI	165
				Europe	Arrow Southern Europe	75
				Europe	Avnet-SILICA	821
UCC2803DG4	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 17 Dec	4 Weeks	Europe	EBV Elektronik	150
UCC2803DTR	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 18 Dec	4 Weeks	Americas	Arrow	>1k
UCC2803DTRG4	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 18 Dec	4 Weeks	None Reported View Distributors
UCC2803N	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	3850 \| 4 Dec	4 Weeks	Americas	Avnet	90
		>10k \| 2 Jan			DigiKey	136
					Rochester Electronics	44
				Europe	Avnet-SILICA	500
UCC2803NG4	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	3850 \| 4 Dec	4 Weeks	Europe	EBV Elektronik	25
	0*	>10k \| 2 Jan	4 Weeks
UCC2803PW	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	8000*		1 Weeks	Americas	Mouser Electronics	125
	8000*		1 Weeks	Americas	Rochester Electronics	>1k
UCC2803PWG4	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	8000*		1 Weeks	None Reported View Distributors
UCC2803PWTR	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	4175 \| 4 Dec	4 Weeks	Americas	Rochester Electronics	>1k
	0*	>10k \| 5 Jan	4 Weeks
UCC2803PWTRG4	As of 8:47 AM GMT, 20 Nov 2008			As of 8:47 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	4175 \| 4 Dec	4 Weeks	None Reported View Distributors
	0*	>10k \| 5 Jan	4 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
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

Datasheets

Low-Power BiCMOS Current-Mode PWM (Rev. C) (ucc2803.pdf, 575 KB)
12 Jan 2005 Download

Application Notes

Understanding Buck-Boost Power Stages in Switchmode Power Supplies (Rev. A) (slva059a.htm, 8 KB)
28 May 2002 Abstract
UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers (slua257.htm, 8 KB)
07 Feb 2002 Abstract
Differences Between the UCC3813 and the UCC3800 PWM Families (slua247.htm, 8 KB)
02 Jun 2000 Abstract
Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (sloa044.htm, 8 KB)
23 Mar 2000 Abstract
DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 (slua084.htm, 8 KB)
05 Sep 1999 Abstract
DN-65 Considerations in Powering BiCMOS ICs (slua081.htm, 8 KB)
05 Sep 1999 Abstract
DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422 (slua046.htm, 9 KB)
05 Sep 1999 Abstract
DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply (slua042.htm, 8 KB)
05 Sep 1999 Abstract
DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range (slua158.htm, 8 KB)
05 Sep 1999 Abstract
U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's (slua149.htm, 9 KB)
05 Sep 1999 Abstract
U-111, Practical Considerations in Current Mode Power Supplies (slua110.htm, 8 KB)
05 Sep 1999 Abstract
DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex (slua185.htm, 8 KB)
05 Sep 1999 Abstract
DN-46 Highly Efficient Low Power DC to DC Inverter Converts +5V Input to -3V Out (slua179.htm, 8 KB)
05 Sep 1999 Abstract

View Application Notes for PWM Power Supply Controllers

User Guides

View User Guides for PWM Power Supply Controllers

Complementary Products - Can be used with UCC2803
Customers Who Evaluated This Product Also Evaluated...
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TPS54383	Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 300 kHz	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS54286	Dual 2A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
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UCC2803 Status: ACTIVE

Low-Power BiCMOS Current-Mode PWM

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