Datasheet Texas Instruments UCC2895

Manufacturer	Texas Instruments
Series	UCC2895

Phase-shifted full-bridge controller with enhanced control logic,, -40°C to 85°C

Datasheets

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PDF, 1.7 Mb, Revision: P, File published: Jun 21, 2013

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Prices

Status

	UCC2895-W	UCC2895DW	UCC2895DWG4	UCC2895DWTR	UCC2895DWTRG4	UCC2895N	UCC2895NG4	UCC2895PW	UCC2895PWG4	UCC2895PWTR	UCC2895Q
Lifecycle Status	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)		Active (Recommended for new designs)	NRND (Not recommended for new designs)
Manufacture's Sample Availability	No	Yes	Yes	No	No	Yes	Yes	Yes	No	No

Packaging

	UCC2895-W	UCC2895DW	UCC2895DWG4	UCC2895DWTR	UCC2895DWTRG4	UCC2895N	UCC2895NG4	UCC2895PW	UCC2895PWG4	UCC2895PWTR	UCC2895Q
N	1	2	3	4	5	6	7	8	9	10	11
Package Type	YS	DW	DW	DW	DW	N	N	PW		PW	FN
Pin		20	20	20	20	20	20	20		20	20
Industry STD Term		SOIC	SOIC	SOIC	SOIC	PDIP	PDIP	TSSOP		TSSOP	PLCC
JEDEC Code		R-PDSO-G	R-PDSO-G	R-PDSO-G	R-PDSO-G	R-PDIP-T	R-PDIP-T	R-PDSO-G		R-PDSO-G	S-PQCC-J
Package QTY		25	25	2000	2000	18	20	70		2000	46
Carrier		TUBE	TUBE	LARGE T&R	LARGE T&R	TUBE	TUBE	TUBE		LARGE T&R	TUBE
Device Marking		UCC2895DW	UCC2895DW	UCC2895DW	UCC2895DW	UCC2895N	UCC2895N	UCC2895		UCC2895	UCC2895Q
Width (mm)		7.5	7.5	7.5	7.5	6.35	6.35	4.4		4.4	8.96
Length (mm)		12.8	12.8	12.8	12.8	24.33	24.33	6.5		6.5	8.96
Thickness (mm)		2.35	2.35	2.35	2.35	4.57	4.57	1		1	4.06
Pitch (mm)		1.27	1.27	1.27	1.27	2.54	2.54	0.65		0.65	1.27
Max Height (mm)		2.65	2.65	2.65	2.65	5.08	5.08	1.2		1.2	4.57
Mechanical Data		Download	Download	Download	Download	Download	Download	Download		Download	Download

Parametrics

Parameters / Models	UCC2895-W	UCC2895DW	UCC2895DWG4	UCC2895DWTR	UCC2895DWTRG4	UCC2895N	UCC2895NG4	UCC2895PW	UCC2895PWTR	UCC2895Q
Approx. Price (US$)	3.10 \| 1ku
Approx. price, US$		1.85 \| 1ku	1.85 \| 1ku	1.85 \| 1ku	1.85 \| 1ku	1.85 \| 1ku		1.85 \| 1ku	1.85 \| 1ku
Control Method	Current Feedforward Voltage						Current,Feedforward,Voltage			Current,Feedforward,Voltage
Control method		Current,Feedforward,Voltage	Current,Feedforward,Voltage	Current,Feedforward,Voltage	Current,Feedforward,Voltage	Current,Feedforward,Voltage		Current,Feedforward,Voltage	Current,Feedforward,Voltage
Duty Cycle(Max), %							100			100
Duty Cycle(Max)(%)	100
Duty cycle(Max), %		100	100	100	100	100		100	100
Features		Adjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin	Adjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin	Adjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin	Adjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin	Adjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin		Adjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin	Adjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin
Frequency(Max), kHz		1000	1000	1000	1000	1000	1000	1000	1000	1000
Frequency(Max)(kHz)	1000
Gate Drive(Typ), A							0.1			0.1
Gate Drive(Typ)(A)	0.1
Gate drive(Typ), A		0.1	0.1	0.1	0.1	0.1		0.1	0.1
Operating Temperature Range, C							-40 to 85			-40 to 85
Operating Temperature Range(C)	-40 to 85
Operating temperature range, C		-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85		-40 to 85	-40 to 85
Package Group	WAFERSALE	PDIP\|20,SOIC\|20,TSSOP\|20	PDIP\|20,SOIC\|20,TSSOP\|20	PDIP\|20,SOIC\|20,TSSOP\|20	PDIP\|20,SOIC\|20,TSSOP\|20	PDIP\|20,SOIC\|20,TSSOP\|20	PDIP	PDIP\|20,SOIC\|20,TSSOP\|20	PDIP\|20,SOIC\|20,TSSOP\|20	PDIP,SOIC,TSSOP
Package size: mm2:W x L, PKG		20PDIP: 229 mm2: 9.4 x 24.33 (PDIP\|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC\|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP\|20)	20PDIP: 229 mm2: 9.4 x 24.33 (PDIP\|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC\|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP\|20)	20PDIP: 229 mm2: 9.4 x 24.33 (PDIP\|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC\|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP\|20)	20PDIP: 229 mm2: 9.4 x 24.33 (PDIP\|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC\|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP\|20)	20PDIP: 229 mm2: 9.4 x 24.33 (PDIP\|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC\|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP\|20)		20PDIP: 229 mm2: 9.4 x 24.33 (PDIP\|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC\|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP\|20)	20PDIP: 229 mm2: 9.4 x 24.33 (PDIP\|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC\|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP\|20)
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Special Features	Error Amplifier Multi-topology Soft Start Soft Switching Synchronization Pin						Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin			Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin
Topology	Full-Bridge	Phase-Shifted Full-Bridge	Phase-Shifted Full-Bridge	Phase-Shifted Full-Bridge	Phase-Shifted Full-Bridge	Phase-Shifted Full-Bridge	Phase-Shifted Full-Bridge	Phase-Shifted Full-Bridge	Phase-Shifted Full-Bridge	Phase-Shifted Full-Bridge
UVLO Thresholds On/Off, V							11/9			11/9
UVLO Thresholds On/Off(V)	11/9
UVLO thresholds on/off, V		11/9	11/9	11/9	11/9	11/9		11/9	11/9
VCC(Max), V		16.5	16.5	16.5	16.5	16.5		16.5	16.5
VCC(Min), V		10	10	10	10	10		10	10
Vin(Max), V							17			17
Vin(Max)(V)	17
Vin(Min), V							9			9
Vin(Min)(V)	9

Eco Plan

	UCC2895-W	UCC2895DW	UCC2895DWG4	UCC2895DWTR	UCC2895DWTRG4	UCC2895N	UCC2895NG4	UCC2895PW	UCC2895PWG4	UCC2895PWTR	UCC2895Q
RoHS	Not Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant		Compliant	Compliant
Pb Free	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes

Application Notes

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Computing power going вЂњPlatinumвЂќ
PDF, 412 Kb, File published: Aug 11, 2010
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UCC3895 CD Output Asymmetric Duty Cycle Operation
PDF, 70 Kb, File published: Aug 21, 2002
A small number of current-mode applications using non?synchronous output stages have experienced asymmetric pulse widths on the OUTC and OUTD outputs of the UCC3895. Applications using synchronous rectification and/or voltage mode control typically do not experience this anomaly. For the cost of a single resistor, a simple fix allows reliable and stable operation of the UCC3895.
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UCC2895 Layout and Grounding Recommendations
PDF, 393 Kb, File published: Apr 9, 2009
The UCC2895 family of Phase Shifted Full Bridge Power Converters Control Circuits are designed to provide efficient power conversion with minimal noise generation. This is accomplished by the resonant switching of the primary side voltages, which minimizes the switching losses and the voltage/current transients that would be present in a hard switched conventional full bridge power supply.
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A Power Management Solution for Efficient, Multiple Output Applications
PDF, 293 Kb, File published: Oct 4, 2001
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A Comparison Between the BiCMOS UCC3895 Phase Shift Controller and the UC3875
PDF, 21 Kb, File published: Feb 22, 2001
This application report compares the BiCMOS UCC3895 to its bipolar predecessors, the UC3875/6/7/8 family and the UC3879 controller. All of these integrated circuits provide the control and drive signals needed to implement a full-bridge converter using phase-shifted control. The UCC3895 represents the latest offering in the Texas Instruments line of phase-shift controllers, incorporating a feature
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DN-63 The Current-Doubler Rectifier: An Alternative Rectification Technique
PDF, 81 Kb, File published: Jan 12, 2001
The UC3875, UC3879, and UC3895 families of ICs control a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other. This method allows constant-frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance. These ICs can be configured to provide control in either voltage mode or current mode operation, wi
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Phase Shifted Full Bridge, Zero Voltage Transition Design Considerations (Rev. A)
PDF, 393 Kb, Revision: A, File published: Jan 22, 2011
This Application Note will highlight the design considerations incurred in a high frequency power supply using the Phase Shifted Resonant PWM control technique. An overview of this switching technique including comparisons to existing fixed frequency non-resonant and variable frequency Zero Voltage Switching is included. Numerous design equations and associated voltage, current and timing waveform
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3Q 2010 Issue Analog Applications Journal
PDF, 1.5 Mb, File published: Aug 11, 2010
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Synchronous Rectifiers of a Current Doubler
PDF, 207 Kb, File published: Feb 27, 2003
Driving a current doubler synchronous rectification output stage can be a very complex task, especially for a phase shifted full bridge topology. However, using the A and B outputs of the UCC3895 along with the UCC37324 dual 4-A MOSFET driver, direct PWM control of a synchronous rectifier current doubler output stage achieves. This technique provides the proper gating and timing signals necessary
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Current Doubler Rectifier Offers Ripple Current Cancellation
PDF, 116 Kb, File published: Sep 21, 2004

Model Line

Series: UCC2895 (11)

UCC2895-W UCC2895DW UCC2895DWG4 UCC2895DWTR UCC2895DWTRG4 UCC2895N UCC2895NG4 UCC2895PW UCC2895PWG4 UCC2895PWTR UCC2895Q

Manufacturer's Classification

Semiconductors > Analog and Mixed-Signal > Power management > Offline & isolated DC/DC controllers & converters > PWM controllers & resonant controllers