TWR-5/3-12/300-D12-C

TWR-22W MURATA | Alldatasheet

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Technical content

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FEATURES

Figure 1. Simplified block diagram ded telephone modem or analytical instruments. at full load. Efficiencies range up to 87%. requirements in UL, EN60950-1 and CSA-C22.2 No.60950-1.

R/N (mvp-p) Regulation (Max.) Typ. Max. Line Load VIN Nom. (Volts) Range (Volts) Input Current Efficiency Min. Typ. Packag (Case/ Pinout) No Load (mA) Full Load (Amps) Please contact Murata Power Solutions for further information. C39/P61±12 0.3 TWR-3.3/4-12/300-D48N-C 3.3 4 C39/P61±12 0.3 TWR-3.3/4-15/250-D12-C 3.3 4 C39/P61±15 0.25 TWR-3.3/4-15/250-D24-C 3.3 4 80 100 ±1% ±1% 24 18-36 25 1.00 83% 86% C39/P61±15 0.25 100 150 ±5% ±5% TWR-3.3/4-15/250-D48N-C 3.3 4 80 100 ±1% ±1% 48 36-75 25 0.50 85% 87% C39/P61±15 0.25 100 150 ±5% ±5% TWR-5/3-12/300-D12-C 5 3 80 100 ±1% ±1% 12 9-18 120 2.20 81.5% 84% C39/P61±12 0.3 100 150 ±5% ±5% TWR-5/3-12/300-D24-C 5 3 80 100 ±1% ±1% 24 18-36 90 1.08 83% 86% C39/P61±12 0.3 100 150 ±5% ±5% TWR-5/3-12/300-D48N-C 5 3 80 100 ±1% ±1% 48 36-75 25 0.53 85% 87% C39/P61±12 0.3 100 150 ±5% ±5% Output Input MECHANICAL SPECIFICATIONS 1.800 (45.72) PLASTIC CASE STANDOFF 0.020 (0.5) 2.00 (50.8)

0.20 MIN

(5.1) 0.49 (12.5) 0.040 ±0.002 DIA. (1.016 ±0.051) 1.00 (25.4) 0.300 (7.62) 0.800 (20.32) BOTTOM VIEW 0.200 (5.08) 0.10 (2.5) 0.10 (2.5) 0.600 (15.24) Alternate pin length and/or other output voltages are available under special quantity order. I/O Connections Pin Function P61 1 +Input 2 –Input

3 On/Off Control

5 –12V/15V Output

6 Common

7 +3.3/5V Output Performance Specifications and Ordering Guide /onesans Output Configuration Nominal Auxiliary Output Voltage Wide Range Input Maximum Primary Output Current Maximum Auxiliary Output Current Nominal Primary Output Voltage 5T WR 12 300- / - / D48 -3 Input Voltage Range N On/Off Control Polarity See page 9 for complete Part Number Structure and Ordering Information C RoHS-6 Hazardous Substance Compliance Third Angle Projection Dimensions are in inches (mm shown for ref. only). Components are shown for reference only. Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) Angles ± 2˚ MDC_TWR22.B02 Page 2 of 9 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com Triple Output/TWR Models Isolated, High Reliability 1" x 2" DC/DC Converters

Performance/Functional Specifications Typical @ TA = +25°C under nominal line voltage, nominal output voltage, natural air convection, external caps and full-load conditions unless noted. /onesans /onesans All models are tested/specified with two external 0.047μF output capacitors. These capacitors are necessary to accommodate our test equipment and may not be required to achieve speci- fied performance in your applications. All models are stable and regulate within spec under no-load conditions. /twosans Input Reflected Ripple Current is tested/specified over a 20MHz bandwidth. Input filtering is C IN = 33μF , 100V tantalum; CBUS = 220μF , 100V electrolytic; LBUS = 12μH. See Technical Notes. /threesans For consistent operation, the instantaneous input voltage for full output load must not go below the low shutdown voltage A T ALL TIMES. Beware of excessive voltage drop from long input wiring. For reliable startup, be sure to apply input power promptly and fully as a step function. /foursans Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, ground fixed conditions, T CASE = +25°C, full load, natural air convection. /fivesans The On/Off Control may be driven with external logic or the application of appropriate voltages (referenced to Common). The On/Off Control input should use either an open collector/open drain transistor or logic gate which does not exceed +V IN. The On/Off Control may be supplied with with negative logic (LO = on, HI = off) using the "N" model suffix. /sixsans Maximum Power Derating curves indicate an average current at nominal input voltage. At higher temperatures and/or lower airflow, the DC/DC converter will tolerate brief full current outputs if the total RMS current over time does not exceed the derating curve. /sevensans All models are fully operational and meet published specifications, including cold start at –40°C. /eightsans Output noise may be further reduced by adding an external filter. See I/O Filtering and Noise Reduction. /ninesans The outputs share a common isolated return. The two output sections are not isolated from each other. /tensans Regulation specifications describe the deviation as the line input voltage or output load current is varied from a nominal midpoint value to either extreme. The outputs will not accept appreciable reverse current without possible damage. Input Input Voltage Range See Ordering Guide Start-Up Threshold: /threesans 12V Models 9V minimum, 9.5V typical 24V Models 16.5V minimum, 17V typical 48V Models 34V minimum, 35V typical Undervoltage Shutdown: /threesans 12V Models 8V minimum, 8.5V typical 24V Models 16V minimum, 16.5V typical 48V Models 32.5V minimum, 34.5V typical Overvoltage Shutdown: 12V Models 20V typical, 21V maximum 24V Models 38V typical, 40V maximum 48V Models 78.5V typical, 81V maximum Reflected (Back) Ripple Current /twosans 12mA typical, 20mAp-p maximum Input Current: Full Load Conditions See Ordering Guide No Load V IN = nominal 12V and 24V Models 25mA typical, 50mA maximum 48V Models 170mA typical, 200mA maximum Low-Line Voltage (V IN = VMIN, full load) TBD Remote On/Off Control /fivesans Positive Logic (no model suffix) Off = ground pin to +1.2V maximum On = open pin to +V IN maximum Current 2mA maximum Negative Logic (N model suffix) On = ground pin to +1.2V maximum Off = open pin to +V IN maximum Current 18mA maximum Output VOUT Range See Ordering Guide VOUT Accuracy: 3.3V or 5V Output ±1% of VNOM ±12V or ±15V Outputs ±10% of VNOM (See Technical Notes) Temperature Coefficient ±0.02% of VOUT range/°C Minimum Loading: See Technical Notes 3.3V or 5V Output No minimum load ±12V or ±15V Outputs 20% minimum of nominal output current, balanced load Ripple/Noise (20MHz BW) /onesans/twosans/foursans See Ordering Guide Line/Load Regulation /tensans See Ordering Guide & Technical Notes Efficiency See Ordering Guide Maximum Capacitive Loading: 3.3V or 5V Output TBD ±12V or ±15V Outputs TBD Isolation: Input to Output Voltage 1500Vdc minimum Resistance 100M 7 Capacitance 470pF Isolation Safety Rating Functional insulation Current Limit Inception: (98% of VOUT) 3.3V Output 5 Amps minimum, 6.2 Amps maximum 5V Output 4 Amps minimum, 5.2 Amps maximum ±12V Outputs 0.36 Amps minimum, 1 Amp maximum ±15V Outputs 0.5 Amps minimum, 1.2 Amps maximum Short-Circuit Detection: 3.3V or 5V Output Magnetic feedback ±12V or ±15V Outputs Magnetic feedback plus voltage clamp Short-Circuit Potection Method Current limiting with hiccup autorestore. Remove overload for recovery. Short-Circuit Current: 3.3V or 5V Output 2 Amps maximum ±12V or ±15V Outputs 1 Amp maximum Short Circuit Duration (no damage) Continuous, output shorted to ground Overvoltage Protection: 3.3V or 5V Output 3.8Vdc minimum, 4.2Vdc maximum ±12V or ±15V Outputs 30Vdc maximum Method: magnetic feedback Dynamic Characteristics Dynamic Load Response (50-100% loadstep) 3.3V or 5V Output 150μsec to ±1.5% of final value ±12V or ±15V Outputs 150μsec to ±10% of final value Start-Up Time VIN to VOUT regulated TBD msec for VOUT = nominal Switching Frequency 330kHz ±20kHz Environmental Calculated MTBF TBD Operating Temperature: (Ambient) /sevensans No Derating (Natural convection) –40 to +65°C With Derating See Derating Curves Operating Case Temperature –40 to +100°C maximum Storage Temperature –40 to +120°C Thermal Protection/Shutdown +110°C minimum to 120°C maximum Density Altitude 0 to 10,000 feet Relative Humidity 10% to 90%, non-condensing Physical Dimensions See Mechanical Specifications Case and Header Material Black Diallyl Phthalate plastic Pin Dimensions/Material 0.04" (1.016mm) dia. Gold-plated copper alloy with nickel underplate. Weight TBD Electromagnetic Interference TBD Safety UL/cUL 60950-1 CSA-C22.2 No.234 IEC/EN 60950-1 MDC_TWR22.B02 Page 3 of 9 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com Triple Output/TWR Models Isolated, High Reliability 1" x 2" DC/DC Converters

Performance/Functional Specifications Table is not implied. these fuses in the high side (ungrounded input) power lead to the converter.

12 Volts 4 Amps

24 Volts 2 Amps

48 Volts 1 Amp

while a parallel electrolytic capacitor offers improved energy storage. until the ramping-up input voltage exceeds the Start-Up Threshold Voltage. will not occur until the input is brought back up to the Start-Up Threshold. ity at the converter’s switching frequency and adequate bulk capacitance. to absorb the current pulses reflected back from the converter’s input. Figure 2. Measuring Input Ripple Current cause overheating even though current limiting is in place. increased noise, aborted start-up or other undefined operation.

/UTPUT0OWER7ATTS !MBIENT4EMPERATUREo# 47273ERIES/UTPUT0OWERVS!MBIENT4EMPERATURE n 3. Any series inductance considerably complicates the added capacitance therefore try to reduce the inductance seen at the converter’s output. You may need to add BOTH a cap at the converter end and at the load (effec- tively creating a Pi filter) for the express purpose of reducing the phase angle which is seen by the converter’s output loop controller. This tends to hide (decouple) the inductance from the controller. Make sure your power conductors are adequate for the current and reduce the distance to the load as much as possible. Very low noise applications may require more than one series inductor plus parallel caps. 4. Oscillation or instabilility can occur at several frequencies. For this reason, you may need both a large electrolytic or tantalum cap (car- rying most of the capacitance) and a small wideband parallel ceramic cap (with low internal series inductance). Always remember that inside real world capacitors are distributed trace inductance (ESL) and series resistance (ESR). Make sure the input AC impedance is very low before trying to improve the output. 5. It is challenging to offer a complete set of simple equations in reason- able closed form for the added output capacitance. Part of the difficulty is accurately modeling your load environment. Therefore your best success may be a combination of previous experience and empirical approxima- tion. Maximum Current and Temperature Derating Curves The curves shown below indicate the maximum average output current available versus the ambient temperature and airflow. All curves are done approximately at sea level and you should leave an additional margin for higher altitude operation and possible fan failure. (Remember that fans are less efficient at higher altitudes). These curves are an average – current may be greater than these values for brief periods as long as the average value is not exceeded. The “natural convection” area of the curve is that portion where self- heating causes a small induced convective airflow around the converter without further mechanical forced airflow from a fan. Natural convection assumes that the converter is mounted with some spacing to adjacent com- ponents and there are no nearby high temperature parts. Note that such self-heating will produce an airflow of typically 25 Linear Feet per Minute (LFM) without a fan. Heat is removed both through the mounting pins and the surface of the converter. Many systems include fans however it is not always easy to measure the airflow adjacent to the DC/DC converter. Simply using the cubic feet per minute (CFM) rating of the fan is not always helpful since it must be matched to the volume of the enclosure, the outside ambient temperature, board spacing, the intake area and total internal power dissipation. Most PWM controllers, including those on the TWR’s, will tolerate opera- tion up to about +100 degrees Celsius. If in doubt, attach a thermal sensor to the package near the output components and measure the surface temperature after allowing a proper warm-up period. Remember that the temperature inside the output transistors at full power will be higher than the surface temperature therefore do not exceed operation past approxi- mately +100 deg. C on the surface. As a rough indication, any circuit which you cannot touch briefly with your finger warrants further investigation. It is probably more important in your system that all heat is periodically removed rather than having very high airflow. Consider having the total enclosure completely recycled at least several times a minute. Failure to remove the heat causes heat buildup inside your system and even a small fan (relative to the heat load) is quite effective. A very rough guide for typi- cal enclosures is one cubic foot per minute of exhausted airflow per 100 Watts of internal heat dissipation. Efficiency Curves These curves indicate the ratio of output power divided by input power at various input voltages and output currents times 100%. All curves are measured at +25°C ambient temperature and adequate airflow. Typical Performance Curves for TWR Series MDC_TWR22.B02 Page 6 of 9 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com Triple Output/TWR Models Isolated, High Reliability 1" x 2" DC/DC Converters

%FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 6). 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 6). Typical Performance Curves for TWR Series MDC_TWR22.B02 Page 7 of 9 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com Triple Output/TWR Models Isolated, High Reliability 1" x 2" DC/DC Converters

%FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). Typical Performance Curves for TWR Series 472 %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT —# ,OAD#URRENT!MPS %FFICIENCY 6). 6). 6). 6). MDC_TWR22.B02 Page 8 of 9 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com Triple Output/TWR Models Isolated, High Reliability 1" x 2" DC/DC Converters

Output Configuration: T = Triple Nominal Auxiliary Output Voltages (±12 or ±15 Volts) Wide Range Input Maximum Primary Output Current in Amps Maximum Auxiliary Output Currents in mA from each output Nominal Primary Output Voltage (+3.3 or +5 Volts) 5T WR 12 300- / - / D48-3 Input Voltage Range: D12 = 10-18 Volts (12V nominal) D24 = 18-36 Volts (24V nominal) D48 = 36-75 Volts (48V nominal) N On/Off Control Polarity Blank = Positive Logic N = Negative Logic PART NUMBER STRUCTURE Note: Some model number combinations may not be available. Contact Murata Power Solutions. RoHS-6 Hazardous Substance Compliance MDC_TWR22.B02 Page 9 of 9 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com Triple Output/TWR Models Isolated, High Reliability 1" x 2" DC/DC Converters Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2008 Murata Power Solutions, Inc. USA: Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Germany: München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Website: www.murata-ps.jp China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 REGISTERED