UCC28C43 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

	UCC28C43	UCC38C43
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)	8.4/7.6	8.4/7.6
Pin/Package	8MSOP, 8PDIP, 8SOIC	8MSOP, 8PDIP, 8SOIC
Regulated Outputs(#)	1	1
Thermal Shutdown	No	No
	Samples	Samples
	Inventory	Inventory

Other qualified versions of UCC28C43

Version	Part Number	Definition
Enhanced Product	UCC28C43-EP	Supports Defense, Aerospace and Medical Applications

Customers Who Evaluated This Product Also Evaluated

UC2846: Current Mode PWM Controller
TPS51116: DDR1, DDR2, DDR3 Switcher and LDO
TPS51220: Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller
TPS2375: IEEE 802.3af PoE Powered Device Controllers

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
UCC28C43D	ACTIVE	-40 to 105	0.85 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
UCC28C43DG4	ACTIVE	-40 to 105	0.85 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
UCC28C43DGK	ACTIVE	-40 to 105	0.85 \| 1ku	MSOP (DGK) \| 8	View	80 \| TUBE
UCC28C43DGKG4	ACTIVE	-40 to 105	0.85 \| 1ku	MSOP (DGK) \| 8	View	80 \| TUBE
UCC28C43DGKR	ACTIVE	-40 to 105	0.75 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC28C43DGKRG4	ACTIVE	-40 to 105	0.75 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC28C43DR	ACTIVE	-40 to 105	0.75 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC28C43DRG4	ACTIVE	-40 to 105	0.75 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
UCC28C43P	ACTIVE	-40 to 105	0.85 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
UCC28C43PG4	ACTIVE	-40 to 105	0.85 \| 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, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksUCC28C43D
Americas	Arrow	887
	Avnet	>1k
	Newark	>1k
	Rochester Electronics	46
Asia	Farnell Asia	694
Europe	Abacus Polar	150
	Arrow Northern Europe	15
	Farnell	354
TI Lead Time*: 20 WeeksUCC28C43DG4
Americas	Avnet	25
Worldwide	Mouser Electronics	583
TI Lead Time*: 14 WeeksUCC28C43DGK
Americas	Rochester Electronics	>1k
Asia	WPI	68
Europe	Abacus Polar	630
	Arrow Southern Europe	160
	Avnet-SILICA	379
	EBV Elektronik	38
Worldwide	DigiKey	157
Worldwide	Mouser Electronics	164
TI Lead Time*: 14 WeeksUCC28C43DGKG4
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksUCC28C43DGKR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksUCC28C43DGKRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksUCC28C43DR
Americas	Arrow	>1k
	Newark	844
	Rochester Electronics	>1k
Asia	Farnell Asia	844
TI Lead Time*: 20 WeeksUCC28C43DRG4
None Reported View Distributors
TI Lead Time*: 14 WeeksUCC28C43P
Asia	WPI	65
Europe	EBV Elektronik	25
Worldwide	DigiKey	137
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 14 WeeksUCC28C43PG4
Europe	EBV Elektronik	25
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
UCC28C43D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC28C43DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC28C43DGK	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC28C43DGKG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC28C43DGKR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC28C43DGKRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC28C43DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC28C43DRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
UCC28C43P	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UCC28C43PG4	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 UCC28C43

Simulation Models

PSpice Model
- UCC28C43 PSpice Transient Model (ZIP, 101 KB) 195 views
  09 Dec 2008

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
UC2846	Current Mode PWM Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
TPS51116	DDR1, DDR2, DDR3 Switcher and LDO	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS51220	Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS2375	IEEE 802.3af PoE Powered Device Controllers	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS2420	3-20V Integrated FET 0-5A Dual Fault Threshold Hot Swap with Load Current Monitoring	HOT SWAP POWER MANAGEMENT-HOT-SWAP SWITCHES (INTEGRATED FET)	TI customers also evaluated this product.
BQ24085	750mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC with Thermal Regulation	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
TPS65053	5-Channel Power Mgmt IC with two step down converters and 3 low-input voltage LDOs	POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER	TI customers also evaluated this product.
TPS23754	High Power/High Efficiency PoE Interface and DC/DC Controller	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	TI customers also evaluated this product.
TPS65150	5V/2A(I/O), 4-CH Multi-Converter w/ VCOM Op-Amp & GPM for LCD Bias, 24 QFN/TSSOP	LIGHTING AND DISPLAY SOLUTIONS-LCD/OLED DISPLAY BIAS SOLUTIONS	TI customers also evaluated this product.
TLV431B	Low-Voltage Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.
TPS51124	Dual, Synchronous Step Down Controller for Low Voltage System Power	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	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

UCC28C43 Status: ACTIVE

BiCMOS Low-Power Current Mode PWM Controller

Most Popular Links