AC/DC and DC/DC Power Supplies - PWM Power Supply Controllers - UCC1803

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Datasheet

Low-Power BiCMOS Current-Mode PWM (Rev. C) (PDF 600 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 UCC1803

Version	Part Number	Definition
Catalog	UCC3803	TI's standard catalog product

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.

View All Description in Datasheet

Pricing / Packaging / CAD Design Tools / Samples

				Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	DSCC #	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
5962-9451303MPA	ACTIVE	-55 to 125		9.30 \| 100u	CDIP (JG) \| 8	View	1 \| TUBE	Contact TI Distributor or Sales Office
UCC1803J	ACTIVE	-55 to 125		7.43 \| 100u	CDIP (JG) \| 8	View	1 \| TUBE	Contact TI Distributor or Sales Office
UCC1803J883B	ACTIVE	-55 to 125	5962-9451303MPA	9.30 \| 100u	CDIP (JG) \| 8	View	1 \| TUBE	Contact TI Distributor or Sales Office

* 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 9:52 AM GMT, 25 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 8 Weeks5962-9451303MPA
Americas	Rochester Electronics	10
TI Lead Time*: 8 WeeksUCC1803J
Americas	Arrow	14
	Avnet	29
TI Lead Time*: 8 WeeksUCC1803J883B
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
5962-9451303MPA	TBD	A42	N/A for Pkg Type	View	View
UCC1803J	TBD	A42	N/A for Pkg Type	View	View
UCC1803J883B	TBD	A42	N/A for Pkg Type	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 UCC1803

Datasheet

Low-Power BiCMOS Current-Mode PWM (Rev. C) (PDF, 600 KB)
12 Jan 2005

Application Notes

Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (HTM, 8 KB) 6755 views
23 Mar 2000 Read Abstract
Understanding Buck-Boost Power Stages in Switchmode Power Supplies (Rev. A) (HTM, 8 KB) 23322 views
28 May 2002 Read Abstract
UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers (HTM, 8 KB) 11133 views
07 Feb 2002 Read Abstract
DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422 (HTM, 9 KB) 3324 views
05 Sep 1999 Read Abstract
DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply (HTM, 8 KB) 2231 views
05 Sep 1999 Read Abstract
U-111, Practical Considerations in Current Mode Power Supplies (HTM, 8 KB) 11997 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) 1482 views
05 Sep 1999 Read Abstract
DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex (HTM, 8 KB) 2411 views
05 Sep 1999 Read Abstract
DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range (HTM, 8 KB) 3273 views
05 Sep 1999 Read Abstract
U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's (HTM, 9 KB) 5431 views
05 Sep 1999 Read Abstract
DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 (HTM, 8 KB) 5767 views
05 Sep 1999 Read Abstract
DN-65 Considerations in Powering BiCMOS ICs (HTM, 8 KB) 3373 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) 152 views
  07 Jan 2009
TINA-TI Reference Design
- UCC3803 TINA-TI Transient Steady-State Ref Design (TSC, 32 KB) 61 views
  07 Jan 2009
- UCC3803 TINA-TI Transient Start-Up Reference Design (TSC, 40 KB) 87 views
  07 Jan 2009

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UCC1803 Status: ACTIVE

Low-Power BiCMOS Current-Mode PWM

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Datasheet

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