TWR Series www.murata-ps.com 30W, Triple Output DC/DC Converters Typical unit This family of triple output DC/DC converters was developed for xDSL line card applications. Two independently regulated converters in a 2" x 2" x 0.5" plastic package offer 3.3V @ 4.25A and ± 12V @ ±625mA or ± 15V @ ±500mA. FEATURES PRODUCT OVERVIEW Independently regulated 3.3V and ±12V or ±15V outputs 3.3V @ 4.25A and ±12V @ ±625mA or ±15V @ ±500mA Unlike topologies that provide auxiliary bipolar secondary voltages, the TWR-3.3/4250-12/625 and TWR-3.3/4250-15/500 have fully regulated bipolar control loops that offer the same ±1% load regulation seen on the 3.3V primary output. 30 Watts output power 87% efficiency; 75mV ripple/noise Input ranges: 18-36V or 36-75V 2" x 2" plastic package Designed to meet UL 1950 and EN60950 safety approvals Fully isolated, 1500Vdc guaranteed Basic Insulation transformer construction Available with input ranges of 18 to 36V (-D24), or 36 to 75V (-D48), this TWR series offers 87% efficiency, ±1% line regulation, input overvoltage and undervoltage shutdown circuitry, output overvoltage and short circuit protection, as well as current limiting protection and thermal shutdown. TWR triple output converters will deliver full output power in ambient, still air environments ranging from –40 to +65°C. Designed using Basic Insulation transformer construction, this family of converters guarantees 1500Vdc of isolation voltage and meets IEC950, UL1950 and EN60950 safety standards. "D48" models are CE marked (meet LVD requirements). SIMPLIFIED SCHEMATIC 6/54054 6). Input under and overvoltage shutdown 37)4#( #/.42/, Independent OVP; Short circuit protection /54054 2%452. n6). Thermal shutdown ).054 5.$%26/,4!'% !.$/6%26/,4!'% #/-0!2!4/23 /./&& #/.42/, 07#/.42/,,%2 /04/ )3/,!4)/. 2%&%2%.#% %22/2!-0 07#/.42/,,%2 /04/ )3/,!4)/. 2%&%2%.#% %22/2!-0 6/54054 n6/54054 Typical topology is shown For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_TWR30.B05 Page 1 of 5 TWR Series 30W, Triple Output DC/DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output R/N (mVp-p) VOUT IOUT Model Family (V) (mA) Typ. Max. TWR-3.3/4250-12/625-D24 TWR-3.3/4250-12/625-D48 TWR-3.3/4250-15/500-D24 TWR-3.3/4250-15/500-D48 Input Regulation Line Load 3.3 4250 75 125 ±1.0% ±1.0% ±12 ±625 100 150 ±1.0% ±1.0% 3.3 4250 75 125 ±1.0% ±1.0% ±12 ±625 100 150 ±1.0% ±1.0% 3.3 4250 75 125 ±1.0% ±1.0% ±15 ±500 100 150 ±1.0% ±1.0% 3.3 4250 75 125 ±1.0% ±1.0% ±15 ±500 100 150 ±1.0% ±1.0% VIN Nom. (Volts) Range (Volts) IIN (mA) Min. Typ. Package (Case/ Pinout) 24 18-36 100/1420 83% 85% C22/P31 48 36-75 50/700 84% 86% C22/P31 24 18-36 100/1420 84% 85% C22/P31 48 36-75 50/700 84% 86% C22/P31 Efficiency Ripple/Noise (R/N) measured over a 20MHz bandwidth, specified with 0.2μF ceramic output capacitors. Tested from 10% load to 100% load, other outputs at maximum load. Nominal line voltage, no-load/full-load conditions. Typical at TA = +25°C under nominal line voltage and maximum ouput currents. Any combination of +3.3V and ±12V/±15V rated output current, not to exceed the published IOUT specification (30 Watts). PART NUMBER STRUCTURE MECHANICAL SPECIFICATIONS T WR - 3.3 / 4250 - 12 / 625 - D48 - C Output Configuration: T = Triple RoHS-6 hazardous substance compliant* 0,!34)##!3% Input Voltage Range: D24 = 18-36V (24V nominal) D48 = 36-75V (48V nominal) Wide Range Input Nominal Primary Output: Voltage (+3.3V) Maximum Primary Output Current in mA Case C22 -). Maximum Auxilliary Output: Currents in mA from each output Nominal Auxiliary Output: Voltages (±12 or ±15V) * Contact Murata Power Solutions Technologies for availability. 34!.$/&& Ò$)! Ò TEMPERATURE DERATING 30 28 26 24 22 Output Power (Watts) %130 "/44/-6)%7 20 $)-%.3)/.3!2%).).#(%3-- 18 16 INPUT/OUTPUT CONNECTIONS 14 12 Pin Function P31 1 +Input 10 2 -Input 8 3 No Pin 6 4 On/Off Control 4 5 +12V/15V Output 2 6 +3.3V Output 0 –40 0 40 45 50 55 60 65 70 75 80 85 90 95 100 7 Common 8 -12V/15V Output Dimensions are in inches (mm) shown for ref. only. Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. Ambient Temperature (oC) www.murata-ps.com/support MDC_TWR30.B05 Page 2 of 5 TWR Series 30W, Triple Output DC/DC Converters Performance/Functional Specifications Typical @ TA = +25°C under nominal line voltage, full-load conditions, unless noted. Output (continued) Input Short Circuit Current: 3.3V Output ±12V/±15V Output 2.5 Amps average, continuous 2.0 Amps average, continuous Overvoltage Protection: 3.3V Output ±12V Output ±15V Output Magnetic feedback, transorb 4.2Vdc 30Vdc (±15V differential) 36Vdc (±18V differential) 16-18 Volts (17V nominal) 34-36 Volts (35V nominal) Maximum Capacitive Loading: 3.3V Models 5V Models 1000μF 680μF 16-17.5 Volts (16.5V nominal) 32-35.5 Volts (34.5V nominal) Dynamic Characteristics Input Voltage Range: D24 Models D48 Models 18-36 Volts (24V nominal) 36-75 Volts (48V nominal) Overvoltage Shutdown: D24 Models D48 Models 37-40 Volts (38V nominal) 77-81 Volts (79V nominal) Start-Up Threshold: D24 Models D48 Models Undervoltage Shutdown: D24 Models D48 Models Input Current: Normal Operating Conditions Standby Mode: Off, OV, UV, Thermal Shutdown See Ordering Guide 10mA Input Reflected Ripple Current: Source Impedance: D24 Models D48 Models 200mAp-p max., 140mAp-p (typ.) 200mAp-p max., 140mAp-p (typ.) Internal Input Filter Type Pi (0.039μF - 2.2μH - 3.3μF) Reverse-Polarity Protection: D24 Models D48 Models 1 minute duration, 4A maximum 1 minute duration, 2A maximum On/Off Control (Pin 4) On = open or 13V to +VIN, IIN = 50μA @ 13V Off = 0-0.8V, IIN = 1mA @ 0V Output VOUT Accuracy: 3.3V Output ±12V/±15V Output ±1.5% ±2% Ripple/Noise (20MHz BW) See Ordering Guide Line/Load Regulation Efficiency Minimum Loading Per Specification: +3.3V Output ±12V/±15V Output 10% of IOUT maximum ±30mA Minimum Loading For Stability No load Start-Up Time: VIN to VOUT: 3.3V ±12V/±15V On/Off to VOUT 10msec 15msec 10msec Switching Frequency 350kHz (±30kHz) Environmental MTBF: D24 Models D48 Models TBC TBC Operating Temperature (Ambient): Without Derating: D24 Models D48 Models With Derating –40 to +55°C –40 to +55°C To +100°C (See Derating Curves) Case Temperature: Maximum Operational For Thermal Shutdown +100°C +110°C minimum, +118°C maximum See Ordering Guide Storage Temperature –40 to +120°C See Ordering Guide Physical Dimensions Isolation Voltage: Input-to-Output Input-to-Case Ouput-to-Case 1500Vdc minimum Plastic case Plastic case Isolation Capacitance 470pF Isolation Resistance 100M Current Limit Inception: 3.3V @ 97%VOUT (±12/±15V @ IOUT max.) 5.8-7.5 Amps (model dependent) ±12V @ 97%VOUT (+3.3V @ IOUT max.) 0.825-1.35 Amps ±15V @ 97%VOUT (+3.3V @ IOUT max.) 0.625-1.15 Amps Temperature Coefficient Dynamic Load Response: 3.3V (50-100% step to 2%VOUT) 300μsec maximum ±12V/±15V (50-100% step to 2%VOUT) 300μsec maximum ±0.02% per °C 2" x 2" x 0.5" (50.8 x 50.8 x 12.7mm) Case Material Diallyl phthalate, UL94V-0 rated Pin Material Gold plate over copper alloy Weight: 2.47 ounces (70g) Primary to Secondary Insulation Level Basic All models are specified with external 0.2µF ceramic output capacitors. See Technical Notes/Graphs for details. The On/Off control function can be replaced with a Sync function. See Part Number Suffixes and Technical Notes for details. Applying a voltage to On/Off Control (pin 4) when no input power is applied to the converter can cause permanent damage. Output noise may be further reduced with the installation of additional external output capacitors. See Technical Notes. On/Off control is designed to be driven with open collector or by appropriate voltage levels. Voltages must be referenced to the input return pin (–Input). Demonstrated MTBF available on request. For conditions with less than minimum loading, outputs remain stable. However, regulation performance will degrade. www.murata-ps.com/support MDC_TWR30.B05 Page 3 of 5 TWR Series 30W, Triple Output DC/DC Converters Start-Up Threshold and Undervoltage Shutdown Absolute Maximum Ratings Input Voltage: Continuous: D24A Models D48A Models Transient (100msec): D24A Models D48A Models Input Reverse-Polarity Protection D24A Models D48A Models Output Current 42 Volts 81 Volts 50 Volts 100 Volts Input Current must be limited. 1 minute duration. Fusing recommended. 4 Amps 2 Amps Current limited. Devices can withstand an indefinite output short circuit. On/Off Control (Pins 3 & 4) Max. Voltages Referenced to –Input (pin 2) No Suffix +VIN "S" Suffix +5.7 Volts Storage Temperature –40 to +120°C Lead Temperature See soldering guidelines These are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied, nor recommended. TECHNICAL NOTES Start-Up Time For all models in the TWR 30W Series, VIN to VOUT Start-Up Time is the interval between the time at which a rapidly ramping input voltage crosses the turn-on threshold point and the fully loaded output voltages enter and remain within their specified accuracy bands. Actual measured times will vary with output capacitance and load. The On/Off to VOUT Start-Up Time assumes the converter is turned off via the On/Off Control with the nominal input voltage already applied to the converter. The specification defines the interval between the time at which the converter is turned on and the fully loaded output voltages enter and remain within their specified accuracy bands. On/Off Control I/O Filtering and Noise Reduction All TWR 30W Series models achieve their rated ripple and noise specifications without the use of external input/output capacitors. In critical applications, input/output ripple/noise may be further reduced by installing additional external I/O caps. Input capacitors, which function primarily as energystorage elements, should be selected for bulk capacitance, low ESR and high rms-ripple-current ratings. Output capacitors, which function more as true filter elements, should be selected for bulk capacitance, low ESR, and appropriate frequency response. All caps should have appropriate voltage ratings and be mounted as close to the converters as possible. Temperature variations for all parameters should obviously be taken into consideration. Input Fusing Certain applications and/or safety agencies may require the installation of fuses at the inputs of power conversion components. Fuses should also be used if the possibility of sustained, non-current-limited, input-voltage polarity reversals exists. For DATEL TWR 30W DC/DC Converters, you should use slow-blow type fuses with values no greater than the following. Model Number TWR-3.3/4250-12/625-D24 TWR-3.3/4250-12/625-D48 TWR-3.3/4250-15/500-D24 TWR-3.3/4250-15/500-D48 Under normal start-up conditions, TWR 30W triples will not begin to regulate until the ramping input voltage exceeds the Start-Up Threshold Voltage (typically 17V for "D24" models and 35V for "D48" models). Once operating, devices will not turn off until the input voltage drops below the Undervoltage Shutdown/Lockout limit (typically 16.5V for "D24" models and 34.5V for "D48" models). Subsequent re-start will not occur until the input is brought back up to the Start-Up Threshold. This built-in hysteresis obviously avoids any indeterminate on/off conditions at a single voltage. The On/Off Control pin (pin 4) is provided for remote on/off operation. TWR 30W Series converters are designed so that they are enabled when the control pin is pulled high or left open (normal mode) and disabled when the control pin is pulled low (to less than +0.8V relative to –Input, pin 2). Dynamic control of the on/off function is best accomplished with a mechanical relay or an open-collector/open-drain drive circuit (optically isolated if appropriate). The drive circuit should be able to sink appropriate current (see Performance/Functional Specifications) when activated.. Applying an external voltage to pin 4 when no input power is applied to the converter can cause permanent damage to the converter. The on/off control function, however, is designed such that the converter can be disabled (pin 4 pulled low) while input power is ramping up and then "released" once the input has stabilized. The time duration between the point at which the converter is released and its fully loaded output voltage settles to within specified accuracy can be found in the Performance/Functional Specifications. Fuse Value 4 Amps 2 Amps 4 Amps 2 Amps www.murata-ps.com/support MDC_TWR30.B05 Page 4 of 5 TWR Series 30W, Triple Output DC/DC Converters Typical Performance Curves 472$ %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT # 472$ %FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT # 6).6 6).6 %FFICIENCY %FFICIENCY 6).6 6).6 6).6 6).6 6).6 6).6 ,OAD#URRENT!MPS ,OAD#URRENT!MPS Soldering Guidelines Murata Power Solutions recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. Be cautious when there is high atmospheric humidity. We strongly recommend a mild pre-bake (100° C. for 30 minutes). Your production environment may differ; therefore please thoroughly review these guidelines with your process engineers. Wave Solder Operations for through-hole mounted products (THMT) For Sn/Ag/Cu based solders: For Sn/Pb based solders: Maximum Preheat Temperature 115° C. Maximum Preheat Temperature 105° C. Maximum Pot Temperature 270° C. Maximum Pot Temperature 250° C. Maximum Solder Dwell Time 7 seconds Maximum Solder Dwell Time 6 seconds Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ 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. © 2013 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_TWR30.B05 Page 5 of 5