Datasheet

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BIAS

Power

Stage

OUT

Divide-by-2

Reset

800kHz

Oscillator

Watchdog/

Start Up

PSU

Thermal

Shutdown

SYNC

OUT

SYNC

Power Controller IC

DCV01 Series

www.ti.com

SBVS014A –AUGUST 2000–REVISED DECEMBER 2013

Miniature, 1-W, 1500-Vrms Isolated

Unregulated DC-DC Converters

FEATURES

DESCRIPTION

The DCV01 series is a family of 1-W, 1500-Vrms

• Up To 85% Efficiency

isolated, unregulated dc-dc converters. Requiring a

• Thermal Protection

minimum of external components and including on-

• Device-to-Device Synchronization

chip device protection, the DCV01 series provides

extra features such as output disable and

• Short-Circuit Protection

synchronization of switching frequencies.

• EN55022 Class B EMC Performance

The use of a highly integrated package design results

• UL1950 Recognized Component

in highly reliable products with a power density of

• JEDEC PDIP-14 and Gull-Wing Packages

40 W/in

(2.4 W/cm

). This combination of features,

high isolation, and small size makes the DCV01

APPLICATIONS

suitable for a wide range of applications.

• Industrial Control and Instrumentation

• Point-of-Use Power Conversion

• Ground Loop Elimination

• Data Acquisition

• Test Equipment

• Secondary Isolation Circuits

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2Underwriters Laboratories, UL are trademarks of UL LLC.

3All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (18 pages)

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DCV01 Series www.ti.com SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 Miniature, 1-W, 1500-Vrms Isolated Unregulated DC-DC Converters FEATURES DESCRIPTION • • • • • • • The DCV01 series is a family of 1-W, 1500-Vrms isolated, unregulated dc-dc converters. Requiring a minimum of external components and including onchip device protection, the DCV01 series provides extra features such as output disable and synchronization of switching frequencies.
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DCV01 Series SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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DCV01 Series www.ti.com SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 ELECTRICAL CHARACTERISTICS At TA = +25°C, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OUTPUT Power 100% full load Ripple O/P capacitor = 1-μF, 50% load Voltage vs temperature 0.97 W 20 mVPP Room to cold 0.046 %/°C Room to hot 0.016 %/°C INPUT Voltage range on VS –10% 10% ISOLATION Voltage 1-s flash test 1.5 kVrms UL1950 (1) 1.
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DCV01 Series SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 www.ti.com PIN CONFIGURATION: SINGLE OUTPUT NVA AND DUA PACKAGES PDIP-14 AND SOP-14 (TOP VIEW) VS 1 0V 2 14 SYNCIN DCV01 0V 5 +VOUT 6 NC 7 8 SYNCOUT Table 1. Pin Descriptions (Single Output) PIN NAME PIN NO.
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DCV01 Series www.ti.com SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 TYPICAL CHARACTERISTICS At TA = +25°C, unless otherwise noted. 14.5 50 1-mF Ceramic 4.7-mF Ceramic 10-mF Ceramic 45 14.0 13.5 35 13.0 30 VOUT (V) Ripple (mVPP) 40 25 20 12.5 12.0 11.5 15 10 11.0 5 10.5 0 +VOUT -VOUT 10.00 10 20 30 40 50 60 70 80 90 10 100 20 30 40 50 60 70 80 90 100 Load (%) Load (%) Figure 1. DCV010505 OUTPUT RIPPLE vs LOAD (20-MHz BW) Figure 2.
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DCV01 Series SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, unless otherwise noted. 60 80 50 Emission Level, Peak (dBmA) 90 Efficiency (%) 70 60 50 40 30 20 10 40 30 20 10 0 -10 0 10 20 30 40 50 60 70 80 90 -20 0.15 100 1 10 30 Load (%) Frequency (MHz) Figure 7. DCV012405 EFFICIENCY vs LOAD Figure 8. DCV010505 CONDUCTED EMISSIONS (125% Load) Emission Level, Peak (dBmA) 60 50 40 30 20 10 0 -10 -20 0.
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DCV01 Series www.ti.com SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 FUNCTIONAL DESCRIPTION OVERVIEW The DCV01 offers up to 1 W of unregulated output power with a typical efficiency of up to 85%. This is achieved through highly integrated packaging technology and the implementation of a custom power stage and control IC. The circuit design uses an advanced BiCMOS/DMOS process. Separate primary and secondary transformer windings give good isolation and low barrier capacitance.
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DCV01 Series SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 www.ti.com ADDITIONAL FUNCTIONS DISABLE/ENABLE The DCV01 can be disabled or enabled by driving the SYNC pin using an open drain CMOS gate. If the SYNCIN pin is pulled low, the DCV01 will be disabled. The disable time depends upon the external loading; the internal disable function is implemented in 2 μs. Removal of the pull down will cause the DCV01 to be enabled.
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DCV01 Series www.ti.com SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 Connecting the DCV01 in Parallel If the output power from one DCV01 is not sufficient, it is possible to parallel the outputs of multiple DCV01s, as shown in Figure 12. Again, the SYNCIN feature allows easy synchronization to prevent power-rail beat frequencies at no additional filtering cost. VSUPPLY VOUT VS SYNCIN DCV 01 0V 0V 2 x Power Out VS SYNCIN 0V VOUT DCV 01 0V COM Figure 12.
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DCV01 Series SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 www.ti.com PCB LAYOUT RIPPLE AND NOISE Careful consideration should be given to the layout of the PCB in order that the best results can be obtained. The DCV01 is a switching power supply, and as such, can place high peak-current demands on the input supply. In order to avoid the supply falling momentarily during the fast switching pulses, ground and power planes should be used to track the power to the input of the DCV01.
PAGE 11
DCV01 Series www.ti.com SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 Isolation Voltage Hipot test, flash-tested, withstand voltage, proof voltage, dielectric withstand voltage, and isolation test voltage are all terms that relate to the same thing: a test voltage applied for a specified time across a component designed to provide electrical isolation to verify the integrity of that isolation. TI’s DCx series of dc-dc converters are all 100% production tested at their stated isolation voltage.
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DCV01 Series SBVS014A – AUGUST 2000 – REVISED DECEMBER 2013 www.ti.com REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (August 2000) to Revision A Page • Changed data sheet format to latest standard look .............................................................................................................. 1 • Added note to Sync Input parameters in the Electrical Characteristics ..............................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.