UCC3895 Status: ACTIVE

BiCMOS Advanced Phase Shift PWM Controller

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Datasheet

BiCMOS Advanced Phase Shift PWM Controller (Rev. N) (PDF 665 KB) 21903 views
07 May 2009

Functional Block Diagram

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	UCC1895	UCC2895	UCC3895
Topology	Full-Bridge	Full-Bridge	Boost, Buck, Full-Bridge
Control Method	Current Mode, Voltage	Current Mode, Voltage	Current Mode, Voltage
Duty Cycle(Max)(%)	100	100	100
PWM Outputs(#)	4	4	4
Frequency(Max)(kHz)	1000	1000	1000
UVLO Thresholds On/Off(V)	11/9	11/9	11/9
Pin/Package	20CDIP, 20LCCC	20PDIP, 20PLCC, 20SOIC, 20TSSOP	20PDIP, 20PLCC, 20SOIC, 20TSSOP
Regulated Outputs(#)	4	4	4
	Samples	Samples	Samples
	Inventory	Inventory	Inventory

Other qualified versions of UCC3895

Version	Part Number	Definition
Military	UCC1895	QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

UC3875: Phase Shift Resonant Controller
UC3825: High Speed PWM Controller
UCC2895: BiCMOS Advanced Phase Shift Resonant Controller
TPS2042B: Dual, Current-Limited, Power-Distribution Switches
UA78L05A: 3/8 Pin 100mA Fixed 5V Positive Voltage Regulator
TPS71501: Single Output LDO, 50mA, Adj(1.2 to 15V), High Input Voltage, Low Quiescent Current

Product Information

Features

Programmable Output Turn-on Delay
Adaptive Delay Set
Bidirectional Oscillator Synchronization
Voltage-Mode, Peak Current-Mode, or Average Current-Mode Control
Programmable Softstart/Softstop and Chip Disable via a Single Pin
0% to 100% Duty-Cycle Control
7-MHz Error Amplifier
Operation to 1 MHz
Typical 5-mA Operating Current at 500 kHz
Very Low 150-µA Current During UVLO
APPLICATIONS
- Phase-Shifted Full-Bridge Converters
- Off-Line, Telecom, Datacom and Servers
- Distributed Power Architecture
- High-Density Power Modules

Description

The UCC3895 is a phase-shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. It allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part can be used either as a voltage-mode or current-mode controller.

While the UCC3895 maintains the functionality of the UC3875/6/7/8 family and UC3879, it improves on that controller family with additional features such as enhanced control logic, adaptive delay set, and shutdown capability. Since it is built using the BCDMOS process, it operates with dramatically less supply current than it's bipolar counterparts. The UCC3895 can operate with a maximum clock frequency of 1 MHz.

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
UCC3895DW	ACTIVE	0 to 70	4.75 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE
UCC3895DWG4	ACTIVE	0 to 70	4.75 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE
UCC3895DWTR	ACTIVE	0 to 70	4.45 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Purchase Samples
UCC3895DWTRG4	ACTIVE	0 to 70	4.45 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Purchase Samples
UCC3895N	ACTIVE	0 to 70	4.75 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE
UCC3895NG4	ACTIVE	0 to 70	4.75 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE
UCC3895PW	ACTIVE	0 to 70	4.80 \| 1ku	TSSOP (PW) \| 20	View	70 \| TUBE
UCC3895PWG4	ACTIVE	0 to 70	4.80 \| 1ku	TSSOP (PW) \| 20	View	70 \| TUBE
UCC3895PWTR	ACTIVE	0 to 70	4.50 \| 1ku	TSSOP (PW) \| 20	View	2000 \| LARGE T&R	Purchase Samples
UCC3895PWTRG4	ACTIVE	0 to 70	4.50 \| 1ku	TSSOP (PW) \| 20	View	2000 \| LARGE T&R	Purchase Samples
UCC3895Q	ACTIVE	0 to 70	5.65 \| 1ku	PLCC (FN) \| 20	View	46 \| TUBE
UCC3895QG3	ACTIVE	0 to 70	5.65 \| 1ku	PLCC (FN) \| 20	View	46 \| 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

	TI Inventory Status	Reported Distributor Inventory
UCC3895DW	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	Arrow	>1k
			DigiKey	737
			Mouser Electronics	188
			Newark	7
		Asia	WPI	54
		Europe	Arrow Southern Europe	397
			Compel	636
			EBV Elektronik	16
UCC3895DWG4	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
			Mouser Electronics	8
			Rochester Electronics	5
		Europe	EBV Elektronik	175
UCC3895DWTR	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	14 Weeks	Americas	DigiKey	Available
UCC3895DWTRG4	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	14 Weeks	Americas	Avnet	>1k
		Americas	DigiKey	Available
		Asia	WPI	>1k
UCC3895N	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	Arrow	96
			DigiKey	>1k
			Mouser Electronics	88
			Newark	58
			Rochester Electronics	>1k
		Asia	WPI	55
		Europe	Avnet-SILICA	17
		Europe	Spoerle	60
UCC3895NG4	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
UCC3895PW	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	1 Week	Americas	DigiKey	106
			Mouser Electronics	4
			Rochester Electronics	>1k
		Asia	WPI	110
		Europe	Avnet-SILICA	90
		Europe	Spoerle	70
UCC3895PWG4	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	1 Week	Americas	DigiKey	Available
UCC3895PWTR	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	14 Weeks	Americas	DigiKey	Available
UCC3895PWTRG4	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	14 Weeks	Americas	DigiKey	Available
UCC3895Q	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	8 Weeks	Americas	DigiKey	132
	8 Weeks	Americas	Mouser Electronics	30
UCC3895QG3	As of 8:02 AM GMT, 03 Jul 2009	As of 8:02 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	8 Weeks	Americas	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
UCC3895DW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC3895DWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC3895DWTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC3895DWTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC3895N	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UCC3895NG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
UCC3895PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC3895PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC3895PWTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC3895PWTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
UCC3895Q	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
UCC3895QG3	Green (RoHS & no Sb/Br)	CU SN	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 UCC3895

Simulation Models

PSpice Model
- UCCx895 Family Average PSpice Model (ZIP 105 KB) 9 views
  18 Jun 2009
- UCCx895 and UCCx7324 Families Transient PSpice Model (ZIP 90 KB) 379 views
  10 Feb 2009

Tools & Software

Name	Part #	Company	Tool / Software Type
UCC3895 Evaluation Module	UCC3895EVM-001	Texas Instruments	Development Boards/EVMs

Part #	Name	Product Family	Comments
UCC27200	120V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver	AC/DC AND DC/DC POWER SUPPLIES - MOSFET DRIVERS	The UCC27200 has a boot voltage capability of 120V and when combined with the UCC3895 becomes an ideal solution for intermediate bus architecture converters.
Customers Who Evaluated This Product Also Evaluated...
UC3875	Phase Shift Resonant Controller		TI customers also evaluated this product.
UC3825	High Speed PWM Controller		TI customers also evaluated this product.
UCC2895	BiCMOS Advanced Phase Shift Resonant Controller		TI customers also evaluated this product.
TPS2042B	Dual, Current-Limited, Power-Distribution Switches	PCMCIA AND USB-USB POWER SWITCHES	TI customers also evaluated this product.
UA78L05A	3/8 Pin 100mA Fixed 5V Positive Voltage Regulator	LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS	TI customers also evaluated this product.
TPS71501	Single Output LDO, 50mA, Adj(1.2 to 15V), High Input Voltage, Low Quiescent Current	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS61070	Adjustable, 600-mA Switch, 90% Efficient PFM/PWM Boost Converter in ThinSOT-23	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS	TI customers also evaluated this product.
UCC3818A	BiCMOS Power Factor Preregulator	AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS	TI customers also evaluated this product.
UCC28060	Natural Interleaved Dual-Phase Transition-Mode PFC Controller	AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS	TI customers also evaluated this product.
TPS61200	0.3V Input Voltage Boost Converter with 1.3A Switches and 'Down Mode' in a 3x3 QFN	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS	TI customers also evaluated this product.
LM337	3 Pin 1.5A Adjustable Negative Voltage Regulator	LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS	TI customers also evaluated this product.
TPS40200	Wide Input Non-Synchronous Buck DC/DC Controller	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS71550	Single Output LDO, 50mA, Fixed(5.0V), High Input Voltage, Low Quiescent Current	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.

UCC3895 Status: ACTIVE

BiCMOS Advanced Phase Shift PWM Controller

Most Popular Links

Datasheet

Functional Block Diagram

Other qualified versions of UCC3895

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Simulation Models

Tools & Software

Related End Equipments

Support and Community

Customer Tags

Other Support

UCC3895 Status: ACTIVE

BiCMOS Advanced Phase Shift PWM Controller

Most Popular Links

Datasheet

Functional Block Diagram

Other qualified versions of UCC3895

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Simulation Models

Tools & Software

Related Products

Related End Equipments

Support and Community

Customer Tags

Other Support