UCC28C40 Status: ACTIVE

BiCMOS Low-Power Current Mode PWM Controller

Alert me about changes<br/>to this product

Alert me about changes
to this product

Datasheet

BiCMOS Current Mode PWM Controller (Rev. D) (PDF 622 KB)
13 Dec 2006

	UCC28C40	UCC38C40
Topology	Boost, Flyback, Forward	Boost, Buck, Flyback, Forward
Control Method	Current Mode	Current Mode
Duty Cycle(Max)(%)	100	100
PWM Outputs(#)	1	1
Frequency(Max)(kHz)	1000	1000
UVLO Thresholds On/Off(V)	7/6.6	7/6.6
Pin/Package	8MSOP, 8PDIP, 8SOIC	8MSOP, 8PDIP, 8SOIC
Regulated Outputs(#)	1	1
Thermal Shutdown	No	No
	Samples	Samples
	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

UCC2889: Off-line Power Supply Controller
UCC2895: BiCMOS Advanced Phase Shift Resonant Controller
UCC25600: 8-Pin High-Performance Resonant Mode Controller
TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
TPS54231: 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™
UCD7100: Digital Control Compatible Single Low-Side +/- 4Amp MOSFET Driver with Current Sense

Product Information

Features

Enhanced Replacement for UC3842A Family With Pin-to-Pin Compatibility
1-MHz Operation
50-µA Start-Up Current, 100-µA Maximum
Low Operating Current of 2.3 mA at 52 kHz
Fast 35-ns Cycle-by-Cycle Overcurrent Limiting
±1-A Peak Output Current
Rail-to-Rail Output Swings with 25-ns Rise and 20-ns Fall Times
±1% Initial Trimmed 2.5-V Error Amplifier Reference
Trimmed Oscillator Discharge Current
New Under Voltage Lockout Versions
MSOP-8 Package Minimizes Board Space
APPLICATIONS
- Switch-Mode Power Supplies
- dc-to-dc Converters
- Board Mount Power Modules

Description

UCC38C4x family is a high-performance current-mode PWM controller. It is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UC384xA family and UC384x family of PWM controllers. In addition, lower startup voltage versions of 7 V are offered as UCC38C40 and UCC38C41.

Providing necessary features to control fixed frequency, peak current-mode power supplies, this family offers the following performance advantages. The device offers high-frequency operation up to 1 MHz with low start-up and operating currents, thus minimizing start-up loss and low operating power consumption for improved efficiency. The device also features a very fast current-sense-to-output delay time of 35 ns and a ±1 A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.

View All Description in Datasheet

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
UCC28C40D	ACTIVE	-40 to 105	0.85 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
UCC28C40DG4	ACTIVE	-40 to 105	0.85 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
UCC28C40DGK	ACTIVE	-40 to 105	0.85 \| 1ku	MSOP (DGK) \| 8	View	80 \| TUBE
UCC28C40DGKG4	ACTIVE	-40 to 105	0.85 \| 1ku	MSOP (DGK) \| 8	View	80 \| TUBE
UCC28C40DGKR	ACTIVE	-40 to 85	0.75 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC28C40DGKRG4	ACTIVE	-40 to 85	0.75 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC28C40DR	ACTIVE	-40 to 105	0.75 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC28C40DRG4	ACTIVE	-40 to 105	0.75 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC28C40P	ACTIVE	-40 to 105	1.00 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
UCC28C40PG4	ACTIVE	-40 to 105	1.00 \| 1ku	PDIP (P) \| 8	View	50 \| 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 9:50 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksUCC28C40D
Americas	Avnet	380
Americas	Rochester Electronics	>1k
Asia	WPI	96
Europe	Compel	4
Worldwide	Mouser Electronics	590
TI Lead Time*: 20 WeeksUCC28C40DG4
None Reported View Distributors
TI Lead Time*: 14 WeeksUCC28C40DGK
Americas	Rochester Electronics	>1k
Asia	WPI	132
Worldwide	DigiKey	98
TI Lead Time*: 14 WeeksUCC28C40DGKG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksUCC28C40DGKR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksUCC28C40DGKRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksUCC28C40DR
None Reported View Distributors
TI Lead Time*: 20 WeeksUCC28C40DRG4
None Reported View Distributors
TI Lead Time*: 14 WeeksUCC28C40P
Worldwide	DigiKey	119
Worldwide	Mouser Electronics	320
TI Lead Time*: 14 WeeksUCC28C40PG4
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
UCC28C40D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC28C40DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC28C40DGK	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC28C40DGKG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC28C40DGKR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC28C40DGKRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC28C40DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC28C40DRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC28C40P	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UCC28C40PG4	Green (RoHS & no Sb/Br)	CU NIPDAU	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 UCC28C40

Simulation Models

PSpice Model
- UCC28C40 PSpice Transient Model (ZIP, 101 KB) 98 views
  09 Dec 2008

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
UCC2889	Off-line Power Supply Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
UCC2895	BiCMOS Advanced Phase Shift Resonant Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
UCC25600	8-Pin High-Performance Resonant Mode Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
TPS54620	4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS54231	2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
UCD7100	Digital Control Compatible Single Low-Side +/- 4Amp MOSFET Driver with Current Sense	FUSION DIGITAL POWER(TM) CONTROL SOLUTIONS-FUSION DIGITAL POWER(TM) CONTROL DRIVERS	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.
LP2985A-50	Single Output LDO, 150mA, Fixed(5.0V), 1.0% Tolerance, Low Quiescent Current, Low Noise	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS3801K33	Processor Supervisory Circuits	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
TPS76301	Single Output LDO, 150mA, Adj.(1.5 to 6.0V), Low Quiescent Current, Thermal Protection	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.

Optical Line Card

All End-Equipment

Support and Community

Customer Tags

No Tags are Available for this Part Number

UCC28C40 Status: ACTIVE

BiCMOS Low-Power Current Mode PWM Controller

Most Popular Links

Datasheet

Customers Who Evaluated This Product Also Evaluated