UWQ-12/17-Q48T-C Series www.murata-ps.com Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense PRODUCT OVERVIEW Typical Typ ical units FEATURES S Fixed DC output, 12V @17A (204W) Industry standard quarter brick 2.3˝ x 1.45˝ x 0.46˝ (58.4 x 36.8 x 11.7mm) package without baseplate (0.5˝ [12.7mm] with baseplate) Wide range Vin 18 to 75 Vdc Trimmable 10.8Vout to 13.2Vout @ 210W max. 2250 Volt Basic isolation Remote ON/Off enable control Th UWQ-12/17-Q48T series offers high output The current (up to 17 Amps) in an industry standard cu “quarter brick” package requiring no heat sink “q for most applications. The UWQ-12/17-Q48T is fo trimmable from 10.8Vout to 13.2Vout and includes tri output sense pins to compensate for output voltage ou inaccuracy delivered at the load. The UWQ-12/17ina Q48T series delivers fixed DC output voltages up Q4 to 204 Watts (12V @17A) for printed circuit board mounting. Wide range inputs of 18 to 75 Volts DC m (48 Volts nominal) are ideal for wireless base stations, datacom, and telecom systems. Advanced automated surface mount assembly, thermal management technology, and planar magnetics deliver high reliability galvanic isolation rated at 2250 Vdc for basic insulation. To power digital systems, the output delivers fast settling to current steps and stable operation where higher capacitive loads are required. Excellent ripple and noise specifications deliver stable 12V BUS for IBC applications. For systems needing controlled startup/shutdown, an external remote On/Off control may use either positive or negative logic. Several self-protection features include input undervoltage lockout, output overvoltage protection, and overtemperature shutdown (using an on-board temperature sensor); overcurrent protection using the “hiccup” autorestart technique provides indefinite short-circuit protection. The synchronous rectifier topology along with advanced thermal management delivers high efficiency for minimal heat generation and “no heat sink” operation. The UWQ-12/17-Q48T series is certified to safety standards UL/EN/IEC/CSA 60950-1, 2nd edition. It meets Class B EMI conducted emission compliance to EN55022, CISPR22 with an external filter. DOSA-compatible pinouts, with trim and sense High efficiency synchronous rectifier topology Stable no-load operation Monotonic startup into pre-bias output condition Certified to UL/EN 60950-1, CSA-C22.2 No. 60950-1, 2nd edition safety approvals Extensive self-protection, OVP, input undervoltage, current limiting and thermal shutdown F1 APPLICATIONS Wireless base stations embedded systems, datacom and telecom installations Disk farms, data centers and cellular repeater sites Remote sensor systems Instrumentation systems, R&D platforms, automated test fixtures Data concentrators, voice forwarding and speech processing systems +Vin (1) +Vout (8) Barrier External DC Power Source On/Off Control (2) Controller and Power Open = On Reference and Error Amplifier Trim (6) logic) -Vin (3) -Vout (4) Figure 1. Connection Diagram Typical topology is shown. Murata Power Solutions recommends an external fuse. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 1 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense ORDERING GUIDE ➀ Output Input R/N (mV IOUT IIN full pk-pk) Regulation (Max.) ➁ VOUT (Amps, Power VIN Nom. Range IIN no load (Volts) max.) (Watts) Typ. Max. Line Load (Volts) (Volts) load (mA) (Amps) Root Model ➀ UWQ-12/17-Q48T-C ➁ 12 17 204 100 120 ±0.25% ±0.3% 48 ➀ Please refer to the part number structure for additional ordering information and options. ➁ All specifications are typical at nominal line voltage and full load, +25°C unless otherwise noted. See 18-75 80 4.62 Efficiency Dimensions Min. Typ. (inches) 90% 92% 2.30x1.45x0.46 max. 58.4x36.8x11.7 (mm) detailed specifications. Output capacitors are 1 μF || 10 μF with a 22μF input capacitor. These caps are necessary for our test equipment and may not be needed for your application. PART NUMBER STRUCTURE UWQ - 12 / 17 - Q48 N T B 9 Lx - C RoHS Hazardous Materials compliance C = RoHS-6 (does not claim EU RoHS exemption 7b–lead in solder), standard Family Series: Wide Input Quarter Brick Pin length option Blank = standard pin length 0.188 in. (4.78 mm) L1 = 0.110 in. (2.79 mm)* Nominal Output Voltage L2 = 0.145 in. (3.68 mm)* *Special quantity order is required; no sample quantities available. Maximum Rated Output : Current in Amps Baseplate Connect Pin 9 (special order)* Blank = No pin 9, standard 9 = Pin 9 installed, connects to baseplate Input Voltage Range: Q48 = 18-75 Volts (48V nominal) On/Off Control Logic N = Negative logic P = Positive logic Baseplate Option Blank = No baseplate, standard B = Baseplate installed, optional Trim & Sense T = Trim & Sense pins included** Note: Some model number combinations may not be available. Please contact Murata Power Solutions. **If Trim & Sense pins are not required, please click here for the UWQ http://www.murata-ps.com/data/power/uwq.pdf series (UWQ-12/17-Q48) data sheet, or contact Murata Power Solutions. UWQ Pin 9 Baseplate Connection The UWQ module has an additional pin 9 on special order that connects to the baseplate but is electrically isolated from the rest of the converter. Please refer to the mechanical drawings. Pin 9 offers a positive method of controlling the electrical potential of the baseplate, independent of the converter. The baseplate may be ordered by adding a “B” to the model number tree and pin 9 will be preinstalled by adding a “9.” The two options are separate. Please refer to the Ordering Guide. Do not order pin 9 without the baseplate. Note that “pin 9” converters may be on limited forecast, requiring minimum order quantities and scheduled deliveries. Customer Configuration Part Number 1. UWQ-12/17-Q48NTBL2-C-CIS 2. UWQ-12/17-Q48NTL2-C-CIS UWQ-12/17-Q48NTBL1-C Complete Model Number Example: Negative On/Off logic, trim & sense included, baseplate installed, 0.110˝ pin length, RoHS-6 compliance www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 2 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense FUNCTIONAL SPECIFICATIONS Conditions/Comments ➀ ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Full power operation Operating or non-operating, 100 mS max. duration Input to output Power on or off, referred to -Vin Input Voltage, Transient Isolation Voltage On/Off Remote Control Output Power Minimum 18 Typical/Nominal 48 0 0 Maximum Units 80 Vdc 100 Vdc 2250 13.5 210.12 Vdc Vdc W Current-limited, no damage, 0 17 A short-circuit protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums 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 or recommended. Output Current Conditions/Comments ➀ ➂ INPUT Operating voltage range Recommended External Fuse Start-up threshold, measured at 50% load Undervoltage shutdown, measured at 50% load Overvoltage protection Internal Filter Type Input current Full Load Conditions Low Line Inrush Transient Short Circuit Input Current No Load input current Shut down mode input current Reflected (back) ripple current ➁ Back Ripple Current, No Filtering Back Ripple Current, with 22μf external input capacitor 18 Fast blow Rising input voltage Falling input voltage N/A L-C 16.5 15 Vin = nominal Vin = minimum Vin = 48V. Iout = minimum, unit=ON Measured at input with specified filter 48 20 17.5 16 75 17.9 17 Vdc A Vdc Vdc 4.52 12.06 0.05 50 80 5 15 500 4.76 12.69 0.1 100 150 6.5 25 525 A A A2-Sec. mA mA mA mA, RMS mA-p-p 300 400 mA-p-p GENERAL and SAFETY Efficiency Isolation Isolation Voltage, input to output Isolation Voltage, input to baseplate Isolation Voltage, output to baseplate Insulation Safety Rating Isolation Resistance Isolation Capacitance Safety (certified to the following requirements) Calculated MTBF Vin=48V, full load 90 With or without baseplate With baseplate With baseplate Basic 2250 1500 1500 92 % Vdc Vdc Vdc 100 1500 UL-60950-1, CSA-C22.2 No.60950-1, IEC/EN60950-1, 2nd edition Per Telcordia SR-332, issue 1, class 3, ground fixed, Tambient=+25°C MΩ pF Yes Hours x 103 TBC DYNAMIC CHARACTERISTICS Fixed Switching Frequency 250 Power On, to Vout regulation band, 100% resistive load Remote ON to Vout Regulated 50-75-50% load step to 3% of Vout same as above Startup Time Startup Time Dynamic Load Response Dynamic Load Peak Deviation 275 300 KHz 60 65 mS 60 220 ±500 65 275 ±700 mS μSec mV 1 Vdc 13.5 Vdc 2 mA 13.5 V FEATURES and OPTIONS Remote On/Off Control ➃ “N” suffix: Negative Logic, ON state Negative Logic, OFF state Control Current “P” suffix: Positive Logic, ON state Positive Logic, OFF state Control Current Base Plate ON = Pin connected to -Vin or to external source OFF = Pin open or connected to external voltage source Open collector/drain ON = Pin open or connected to external voltage source OFF = Pin connected to -Vin or to external voltage Open collector/drain "B" suffix 0 3.5 1 3.5 0 1 1 V 2 mA www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 3 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense FUNCTIONAL SPECIFICATIONS, (CONT.) Conditions/Comments ➀ OUTPUT Total Output Power Voltage Setting Accuracy, fixed output Output Voltage Range Overvoltage Protection Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation ➄ Line Regulation Load Regulation Ripple and Noise ➅ Temperature Coefficient Maximum Capacitive Loading Remote Sense Compliance At 50% load, not user adjustable User-adjustable Via magnetic feedback No minimum load 97% of Vnom., cold condition Minimum Maximum Units 204 210 W 11.64 -10 12 12.36 +10 15 Vdc % of Vnom. Vdc 0.0 17 17 A 17.5 19.5 21.5 A 5 6 A ±0.25 ±0.3 % of Vout % of Vout 120 mV pk-pk 10 % of Vout./°C μF % of Vout Hiccup technique, autorecovery within 1.25% of Vout Output shorted to -Vout, no damage. Continuous operation Hiccup technique-auto recovery Vin=min. to max., Vout=nom., full load Iout=min. to max., Vin=nom. 5 Hz- 20 MHz BW, Cout=1μF MLCC paralleled with 10μF tantalum At all outputs Low ESR caps Sense connected at load Typical/Nominal 0.0 100 0 0.02 5000 MECHANICAL (Through Hole Models) Outline Dimensions (open frame) Outline Dimensions (with baseplate) Weight With baseplate With baseplate Without baseplate Without baseplate Through Hole Pin Diameter Through Hole Pin Material TH Pin Plating Metal and Thickness Baseplate Material Copper alloy Nickel subplate Gold overplate Aluminum 2.3x1.45x0.46 58.4x36.8x11.7 2.3x1.45x0.5 58.4x36.8x12.7 2.12 60.19 1.6 45.36 0.04 & 0.06 1.016 & 1.52 Inches mm Inches mm Ounces Grams Ounces Grams Inches mm 50 5 μ-inches μ-inches ENVIRONMENTAL Operating Ambient Temperature Range Operating Case Temperature Storage Temperature Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 RoHS rating Notes See derating curves With baseplate, no derating Vin = Zero (no power) Measured in center External filter is required Class B with external filter RoHS-6 ➀ Unless otherwise noted, all specifications apply at Vin = nominal, nominal output voltage and full output load. General conditions are near sea level altitude, no base plate installed and natural convection airflow unless otherwise specified. All models are tested and specified with external parallel 1 μF and 10 μF multi-layer output capacitors and a 22μf external input capacitor (see Technical Notes). All capacitors are low-ESR types wired close to the converter. These capacitors are necessary for our test equipment and may not be needed in the user’s application. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cin = 33 μF/100V, Cbus = 220μF/100V and Lbus = 12 μH. -40 -40 -55 115 125 85 110 125 130 °C °C °C °C ➂ All models are stable and regulate to specification under no load. ➃ The Remote On/Off Control is referred to -Vin. ➄ Regulation specifications describe the output voltage changes as the line voltage or load current is varied from its nominal or midpoint value to either extreme. The load step is ±25% of full load current. ➅ Output Ripple and Noise is measured with Cout = 1μF paralleled with 10μF, 20 MHz oscilloscope bandwidth and full resistive load. www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 4 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense TYPICAL PERFORMANCE DATA Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation @ 25°C 30 95 20 VIN = 18V VIN = 24V VIN = 36V VIN = 48V VIN = 60V VIN = 75V 85 80 75 Watts Efficiency (%) VIN = 18V VIN = 24V VIN = 36V VIN = 48V VIN = 60V VIN = 75V 25 90 15 10 5 0 70 1 2 3 4 5 6 7 8 65 1 2 3 4 5 6 7 8 9 9 10 11 12 13 14 15 16 17 Amps 10 11 12 13 14 15 16 17 Load Current (Amps) 18 17 16 15 14 13 12 11 10 9 8 7 6 5 Maximum Current Temperature Derating at Sea Level (Vin= 36V, airflow from pin 1 to pin 3, with baseplate) Output Current (Amps) Output Current (Amps) Maximum Current Temperature Derating at Sea Level (Vin= 24V, airflow from pin 1 to pin 3, with baseplate) Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 30 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 80 85 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 30 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 30 Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 80 85 80 85 Maximum Current Temperature Derating at Sea Level (Vin= 60V, airflow from pin 1 to pin 3, with baseplate) Output Current (Amps) Output Current (Amps) Maximum Current Temperature Derating at Sea Level (Vin= 48V, airflow from pin 1 to pin 3, with baseplate) Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 80 85 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 30 Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 5 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense TYPICAL PERFORMANCE DATA 18 17 16 15 14 13 12 11 10 9 8 7 6 5 Maximum Current Temperature Derating at Sea Level (Vin= 36V, airflow from pin 1 to pin 3, without baseplate) Output Current (Amps) Output Current (Amps) Maximum Current Temperature Derating at Sea Level (Vin= 24V, airflow from pin 1 to pin 3, without baseplate) Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 30 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 80 85 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 30 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 30 Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 80 85 80 85 Maximum Current Temperature Derating at Sea Level (Vin= 60V, airflow from pin 1 to pin 3, without baseplate) Output Current (Amps) Output Current (Amps) Maximum Current Temperature Derating at Sea Level (Vin= 48V, airflow from pin 1 to pin 3, without baseplate) Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 80 85 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 30 Natural Convection 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 35 40 45 50 55 60 65 Ambient Temperature (°C) 70 75 www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 6 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense TYPICAL PERFORMANCE DATA Start-up Delay (Vin=48V, Iout=17A, Ta=+25°C) Ch1=Vin, Ch2=Vout Start-up Delay (Vin=48V, Iout=0A, Cload=5000μF, Ta=+25°C) Ch1=Vin, Ch2=Vout Start-up Delay (Vin=48V, Iout=17A, Cload=5000μF, Ta=+25°C) Ch1=Vin, Ch2=Vout On/Off Enable delay (Vin=48V, Vout=nom, Iout=17A, Ta=+25°C) Ch1=Enable, Ch2= Vout On/Off Enable delay (Vin=48V, Vout=nom, Iout=0A, Cload=6000μF, Ta=+25°C) Ch1=Enable, Ch2= Vout On/Off Enable delay (Vin=48V, Vout=nom, Iout=17A, Cload=6000μF, Ta=+25°C) Ch1=Enable, Ch2= Vout www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 7 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense TYPICAL PERFORMANCE DATA Stepload Transient Response (Vin=48V, Iout=50-75-50% of Imax, Cload=1μF || 10μF, Io=5A/div, Ta=+25°C) Ch2=Vout, Ch4=Iout Stepload Transient Response (Vin=48V, Iout=50-75-50% of Imax, Cload=6000μF, Io=5A/div, Ta=+25°C) Ch2=Vout, Ch4=Iout Output Ripple & Noise (Vin=48V, Iout=0A, Cload=1μF || 10μF, Ta=+25°C, BW=20MHz) Output Ripple & Noise (Vin=48V, Iout=17A, Cload=1μF || 10μF, Ta=+25°C, BW=20MHz) Pre-biased Output Voltage Startup Operation (Vin=48Vdc, Iout=0A, Cout=5000uF, Ta=+25°C) Ch1=Vin, Ch2=Vout. Thermal image with hot spot at 9.22A with 25°C ambient temperature. Natural convection is used with no forced airflow. Identifiable and recommended maximum value to be verified in application. www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 8 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense MECHANICAL SPECIFICATIONS – OPEN FRAME TOP VIEW 4.78 .188 (NOTE 1) END VIEW 58.4 2.30 END VIEW 11.7 .46 36.8 1.45 1° MAX (ALL PINS) 0.25 .010 MIN BOTTOM CLEARANCE Mtg Plane SIDE VIEW .062 SHOULDER (AT 40 MIL PINS) MATERIAL: .040 PINS: COPPER ALLOY .062 PINS: COPPER ALLOY 1.57±0.05 .062±.002 @PINS 4 & 8 1.02±0.05 .040±.002 @PINS 1-3, 9 FINISH: (ALL PINS) GOLD (5u"MIN) OVER NICKEL (50u" MIN) 2.000 REF 50.80 2.000 3.8 .15 3.81 .150 7.62 .300 1. ALTERNATE PIN LENGTHS AVAILABLE (SEE PART NUMBER STRUCTURE) 2. COMPONENTS SHOWN ARE FOR REF ONLY 3. DIMENSIONS ARE IN INCHES [mm] 4. PIN LOCATION DIMENSIONS APPLY AT CIRCUIT BOARD LEVEL 5. THESE CONVERTERS MEET THE MECHANICAL SPECIFICATIONS OF A QUARTER BRICK DC-DC CONVERTER 3 4 5 6 2 7 1 8 BOTTOM VIEW (PIN SIDE) INPUT/OUTPUT CONNECTIONS Pin Function 1 +Vin 2 Remote On/Off * 3 -Vin 4 -Vout 5 -Sense 6 Trim 7 +Sense 8 +Vout 9 No pin *The Remote On/Off can be provided with either positive (P suffix) or negative (N suffix) logic. 7.62 .300 CL 3.81 .150 3.81 .150 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 and may vary between units. www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 9 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense MECHANICAL SPECIFICATIONS – WITH BASEPLATE TOP VIEW END VIEW 12.2 0.48 47.24 1.860 4.78 0.188 36.8 1.45 1° MAX (ALL PINS) END VIEW 58.4 2.30 26.16 1.030 M3x0.5 x 0.10 MAX PENETRATION (x4) 0.25 0.010 MIN BOTTOM CLEARANCE Mtg Plane SIDE VIEW 0.062 SHOULDER (AT 40 MIL PINS) MATERIAL: 0.040 PINS: COPPER ALLOY 0.062 PINS: COPPER ALLOY 1.02±0.05 0.040±0.002 @PINS 1-3, 9 FINISH: (ALL PINS) GOLD (5u"MIN) OVER NICKEL (50u" MIN) OPTIONAL PIN #9 CONNECTS TO BASEPLATE AND IS ELECTRICALLY ISOLATED FROM CONVERTER. 1.57±0.05 0.062±0.002 @PINS 4 & 8 2.000 REF 50.80 2.000 3.8 0.15 3.81 0.150 7.62 0.300 1. ALTERNATE PIN LENGTHS AVAILABLE (SEE PART NUMBER STRUCTURE) 2. COMPONENTS SHOWN ARE FOR REF ONLY 3. DIMENSIONS ARE IN INCHES [mm] 4. PIN LOCATION DIMENSIONS APPLY AT CIRCUIT BOARD LEVEL 5. THESE CONVERTERS MEET THE MECHANICAL SPECIFICATIONS OF A QUARTER BRICK DC-DC CONVERTER 3 9 4 5 6 2 7 8 1 BOTTOM VIEW (PIN SIDE) INPUT/OUTPUT CONNECTIONS Pin Function 1 +Vin 2 Remote On/Off * 3 -Vin 4 -Vout 5 -Sense 6 Trim 7 +Sense 8 +Vout 9 Baseplate (Optional) *The Remote On/Off can be provided with either positive (P suffix) or negative (N suffix) logic. 7.62 0.300 CL 3.81 0.150 3.81 0.150 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 and may vary between units. www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 10 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense MECHANICAL SPECIFICATIONS RECOMMENDED FOOTPRINT (VIEW THROUGH CONVERTER) REF: DOSA STANDARD SPECIFICATION FOR QUARTER BRICK DC/DC CONVERTERS FINISHED HOLE SIZES @ 1-3, 5-7, 9 TOP VIEW (PER IPC-D-275, LEVEL C) 0.048-0.062 CL (PRI) (SEC) 1 2 CL 37.3 1.47 8 7 6 5 4 9 (When Applicable) 3.81 0.150 3 0.100 MIN @ 1-3, 5-7, 9 FOR PIN SHOULDERS 3.81 0.150 7.62 0.300 CL 7.62 0.300 FINISHED HOLE SIZES @ PINS 4 & 8 25.4 1.00 (PER IPC-D-275, LEVEL C) 50.80 2.000 0.070-0.084 58.9 2.32 IT IS RECOMMENDED THAT NO PARTS BE PLACED BENEATH CONVERTER (HATCHED AREA) 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 and may vary between units. www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 11 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense STANDARD PACKAGING 9.92 (251.97) REF 9.92 (251.97) REF Each static dissipative polyethylene foam tray accommodates 15 converters in a 3 x 5 array. 0.88 (22.35) REF 2.75 (69.85) ±.25 closed height 11.00 (279.4) ±.25 10.50 (266.7) ±.25 Carton accommodates two (2) trays yielding 30 converters per carton 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˚ www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 12 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense TECHNICAL NOTES Input Fusing Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Fuses should also be used when there is the possibility of sustained input voltage reversal which is not current-limited. For greatest safety, we recommend a fast blow fuse installed in the +Vin supply line. The installer must observe all relevant safety standards and regulations. For safety agency approvals, install the converter in compliance with the end-user safety standard. Input Under-Voltage Shutdown and Start-Up Threshold Under normal start-up conditions, converters will not begin to regulate properly until the rising input voltage exceeds and remains above the Start-Up Threshold Voltage (see Specifications). Once operating, converters will not turn off until the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent restart will not occur until the input voltage rises again above the Start-Up Threshold. This built-in hysteresis prevents any unstable on/off operation at a single input voltage. Threshold under all load conditions. Be sure to use adequate trace sizes and mount components close to the converter. I/O Filtering, Input Ripple Current and Output Noise All models in this converter series are tested and specified for input reflected ripple current and output noise using designated external input/output components, circuits and layout as shown in the figures below. External input capacitors (CIN in the figure) serve primarily as energy storage elements, minimizing line voltage variations caused by transient IR drops in the input conductors. Users should select input capacitors for bulk capacitance (at appropriate frequencies), low ESR and high RMS ripple current ratings. In the figure below, the CBUS and LBUS components simulate a typical DC voltage bus. Specific system configurations may require additional considerations. Please note that the values of CIN, LBUS and CBUS may vary according to the specific converter model. TO OSCILLOSCOPE +VIN VIN Users should be aware however of input sources near the Under-Voltage Shutdown whose voltage decays as input current is consumed (such as capacitor inputs), the converter shuts off and then restarts as the external capacitor recharges. Such situations could oscillate. To prevent this, make sure the operating input voltage is well above the UV Shutdown voltage AT ALL TIMES. Start-Up Delay Assuming that the output current is set at the rated maximum, the Vin to Vout StartUp Delay (see Specifications) is the time interval between the point when the rising input voltage crosses the Start-Up Threshold and the fully loaded regulated output voltage enters and remains within its specified regulation band. Actual measured times will vary with input source impedance, external input capacitance, input voltage slew rate and final value of the input voltage as it appears at the converter. These converters include a soft start circuit to moderate the duty cycle of the PWM controller at power up, thereby limiting the input and output inrush current. The On/Off Remote Control interval from inception to VOUT regulated assumes that the converter already has its input voltage stabilized above the Start-Up Threshold before the On command. The interval is measured from the On command until the output enters and remains within its specified regulation band. The specification assumes that the output is fully loaded at maximum rated current. Input Source Impedance These converters will operate to specifications without external components, assuming that the source voltage has very low impedance. Since real-world voltage sources have finite minimum impedance, performance is improved by adding external filter components. Sometimes only a small ceramic input capacitor is sufficient. Since it is difficult to totally characterize all applications, some experimentation may be needed. Note that external input capacitors must accept high speed switching currents. Performance will degrade with increasing input inductance. Excessive input inductance may inhibit operation. The DC input regulation specifies that the input voltage, once operating, must never degrade below the Shut-Down CURRENT PROBE + – + – LBUS CBUS CIN −VIN CIN = 33μF, ESR < 200mΩ @ 100kHz CBUS = 220μF, 100V LBUS = 12μH Figure 2. Measuring Input Ripple Current In critical applications, output ripple and noise (also referred to as periodic and random deviations or PARD) may be reduced by adding filter elements such as multiple external capacitors. Be sure to calculate component temperature rise from reflected AC current dissipated inside capacitor ESR. In order to minimize circuit errors and standardize tests between units, scope measurements should be made using BNC connectors or the probe ground should not exceed one half inch and soldered directly to the fixture. +VOUT C1 C2 SCOPE RLOAD −VOUT C1 = 1μF C2 = 10μF LOAD 2-3 INCHES (51-76mm) FROM MODULE Figure 3. Measuring Output Ripple and Noise (PARD) www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 13 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense Floating Outputs Since these are isolated DC-DC converters, their outputs are “floating” with respect to their input. The essential feature of such isolation is ideal ZERO CURRENT FLOW between input and output. Real-world converters however do exhibit tiny leakage currents between input and output. These leakages consist of both an AC stray capacitance coupling component and a DC leakage resistance. When using the isolation feature, do not allow the isolation voltage to exceed specifications. Otherwise the converter may be damaged. Designers will normally use the negative output (-Output) as the ground return of the load circuit. You can however use the positive output (+Output) as the ground return to effectively reverse the output polarity. Minimum Output Loading Requirements These converters employ a synchronous rectifier design topology. All models regulate within specification and are stable under no load to full load conditions. Operation under no load might however slightly increase output ripple and noise. Thermal Shutdown To protect against thermal over-stress, these converters include thermal shutdown circuitry. If environmental or application conditions cause the temperature of the DC-DC’s to rise above the Operating Temperature Range up to the shutdown temperature, an on-board electronic temperature sensor will power down the unit. When the temperature decreases below the turn-on threshold, the converter will automatically restart. There is a small amount of hysteresis to prevent rapid on/off cycling. CAUTION: If the product is operated too close to the thermal limits, it may shut down suddenly without warning. Be sure to thoroughly test your application to avoid unplanned thermal shutdown. Temperature Derating Curves The graphs in this data sheet illustrate typical operation under a variety of conditions. The Derating curves show the maximum continuous ambient air temperature and decreasing maximum output current which is acceptable under increasing forced airflow measured in Linear Feet per Minute (“LFM”) or meters per second (M/S). Note that these are AVERAGE, steady state measurements. The converter will accept brief increases in temperature and/or current or reduced airflow as long as the average is not exceeded. Note that the temperatures are of the ambient airflow, not the converter itself which is obviously running at higher temperature than the outside air. Also note that “natural convection” is defined as very low flow rates which are not using fan-forced airflow. Depending on the application, “natural convection” is usually about 30-65 LFM but is not equal to still air (0 LFM). Murata Power Solutions makes Characterization measurements in a closed cycle wind tunnel with calibrated airflow. Both thermocouples and an infrared camera system are used to observe thermal performance. CAUTION: If these Derating guidelines are exceeded, the converter may have an unplanned Over Temperature shut down. Also, these graphs are all collected near Sea Level altitude. Be sure to reduce the derating for higher altitude. Output Overvoltage Protection (OVP) This converter monitors its output voltage for an over-voltage condition using magnetic feedback circuitry. If the output exceeds OVP limits, the sensing circuit will power down the unit, and the output voltage will decrease. After a time-out period, the PWM will automatically attempt to restart, causing the output voltage to ramp up to its rated value. It is not necessary to power down and reset the converter for this automatic OVP-recovery restart. If the fault condition persists and the output voltage climbs to excessive levels, the OVP circuitry will initiate another shutdown cycle. This on/off cycling is referred to as “hiccup” mode. Output Fusing The converter is extensively protected against current, voltage and temperature extremes. However, your application circuit may need additional protection. In the extremely unlikely event of output circuit failure, excessive voltage could be applied to the application circuit. Consider using an appropriate external protection. Current Limiting As power demand increases on the output and enters the specified “limit inception range” limiting circuitry activates in the DC-DC converter to limit/ restrict the maximum current or total power available. Once the current reaches a certain range the output voltage will start to decrease while the output current continues to increase, thereby maintaining constant power, until a maximum peak current is reached and the converter enters a “hiccup” (on off cycling) mode of operation until the load is reduced below the threshold level, whereupon it will return to a normal mode of operation. Current limit inception is defined as the point where the output voltage has decreased by a pre-specified percentage (usually a 2% decrease from nominal). Short Circuit Condition The short circuit condition is an extension of the “Current Limiting” condition. When the monitored peak current signal reaches a certain range, the PWM controller’s outputs are shut off thereby turning the converter “off.” This is followed by an extended time out period. This period can vary depending on other conditions such as the input voltage level. Following this time out period, the PWM controller will attempt to re-start the converter by initiating a “normal start cycle” which includes softstart. If the “fault condition” persists, another “hiccup” cycle is initiated. This “cycle” can and will continue indefinitely until such time as the “fault condition” is removed, at which time the converter will resume “normal operation.” Operating in the “hiccup” mode during a fault condition is advantageous in that average input and output power levels are held low preventing excessive internal increases in temperature. Trimming Output Voltage UWQ converters have a trim capability (pin 6) that enables users to adjust the output voltage from +10% to –10% (refer to the trim equations in the table below). Adjustments to the output voltage can be accomplished with a single fixed resistor as shown in Figures 4 and 5. A single fixed resistor can increase or decrease the output voltage depending on its connection. Resistors should be located close to the converter and have TCR’s less than 100ppm/°C to minimize sensitivity to changes in temperature. If the trim function is not used, leave the trim pin open. Standard UWQs have a “positive trim” where a single resistor connected from the Trim pin (pin 6) to the +Sense (pin 7) will increase the output voltage. A resistor connected from the Trim Pin (pin 6) to the –Sense (pin 5) will decrease the output voltage. Trim adjustments greater than the specified +10%/–10% can have an adverse affect on the converter’s performance and are not recommended. Excessive voltage differences between VOUT and Sense, in conjunction with trim adjustment of the output voltage, can cause the overvoltage protection circuitry to activate (see Performance Specifications for overvoltage limits). www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 14 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense Temperature/power derating is based on maximum output current and voltage at the converter’s output pins. Use of the trim and sense functions can cause output voltages to increase, thereby increasing output power beyond the UWQ’s specified rating, or cause output voltages to climb into the output overvoltage region. Therefore: Contact and PCB resistance losses due to IR drops +VOUT +VIN I OUT +SENSE (VOUT at pins) x (IOUT) rated output power Sense Current The Trim pin (pin 6) is a relatively high impedance node that can be susceptible to noise pickup when connected to long conductors in noisy environments. Trim Up* RT UP (kΩ) = ON/OFF CONTROL Trim Down* 49.6(VO – 1.226) –10.2 VO – 12 RT DOWN (kΩ) = 60.45 TRIM LOAD Sense Return −SENSE I OUT Return –10.2 12 – VO –VIN -VOUT Contact and PCB resistance losses due to IR drops *Vo = Desirable output voltage in Volts Figure 6. Remote Sense Circuit Configuration +VIN function is not used for remote regulation, the user should connect +Sense to +Vout and –Sense to –Vout at the converter pins. +VOUT +SENSE ON/OFF CONTROL TRIM LOAD RTRIM UP –SENSE –VIN –VOUT Figure 4. Trim Connections To Increase Output Voltages Using Fixed Resistors +VIN +VOUT The remote Sense lines carry very little current. They are also capacitively coupled to the output lines and therefore are in the feedback control loop to regulate and stabilize the output. As such, they are not low impedance inputs and must be treated with care in PC board layouts. Sense lines on the PCB should run adjacent to DC signals, preferably Ground. In cables and discrete wiring, use twisted pair, shielded tubing or similar techniques. Any long, distributed wiring and/or significant inductance introduced into the Sense control loop can adversely affect overall system stability. If in doubt, test your applications by observing the converter’s output transient response during step loads. There should not be any appreciable ringing or oscillation. You may also adjust the output trim slightly to compensate for voltage loss in any external filter elements. Do not exceed maximum power ratings. +SENSE ON/OFF CONTROL TRIM LOAD RTRIM DOWN –SENSE –VIN –VOUT Figure 5. Trim Connections To Decrease Output Voltages Using Fixed Resistors Remote Sense Input Use the Sense inputs with caution. Sense is normally connected at the load. Sense inputs compensate for output voltage inaccuracy delivered at the load. This is done by correcting IR voltage drops along the output wiring and the current carrying capacity of PC board etch. This output drop (the difference between Sense and Vout when measured at the converter) should not exceed 0.5V. Consider using heavier wire if this drop is excessive. Sense inputs also improve the stability of the converter and load system by optimizing the control loop phase margin. Note: The Sense input and power Vout lines are internally connected through low value resistors to their respective polarities so that the converter can operate without external connection to the Sense. Nevertheless, if the Sense Remote On/Off Control On the input side, a remote On/Off Control can be specified with either positive or negative logic as follows: Models are on (enabled) when the On/Off is grounded or brought to within a low voltage (see Specifications) with respect to –VIN. The device is off (disabled) when the On/Off is left open or is pulled high to +13.5VDC Max. with respect to –VIN. Dynamic control of the On/Off function should be able to sink the specified signal current when brought low and withstand specified voltage when brought high. Be aware too that there is a finite time in milliseconds (see Specifications) between the time of On/Off Control activation and stable, regulated output. This time will vary slightly with output load type and current and input conditions. There are two CAUTIONs for the On/Off Control: CAUTION: While it is possible to control the On/Off with external logic if you carefully observe the voltage levels, the preferred circuit is either an open drain/open collector transistor or a relay (which can thereupon be controlled by logic). The On/Off prefers to be set at approx. +13.5V (open pin) for the ON state, assuming positive logic. www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 15 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense CAUTION: Do not apply voltages to the On/Off pin when there is no input power voltage. Otherwise the converter may be permanently damaged. Please observe Sense inputs tolerance to avoid improper operation: [Vout(+) −Vout(-)] − [Sense(+) −Sense(-)] ≤ 10% of Vout Output overvoltage protection is monitored at the output voltage pin, not the Sense pin. Therefore excessive voltage differences between Vout and Sense together with trim adjustment of the output can cause the overvoltage protection circuit to activate and shut down the output. Power derating of the converter is based on the combination of maximum output current and the highest output voltage. Therefore the designer must ensure: Emissions Performance Murata Power Solutions measures its products for radio frequency emissions against the EN 55022 and CISPR 22 standards. Passive resistance loads are employed and the output is set to the maximum voltage. If you set up your own emissions testing, make sure the output load is rated at continuous power while doing the tests. The recommended external input and output capacitors (if required) are included. Please refer to the fundamental switching frequency. All of this information is listed in the Product Specifications. An external discrete filter is installed and the circuit diagram is shown below. (Vout at pins) x (Iout) ≤ (Max. rated output power) UWQ EMI 200W Test Card 48Vdc in, 12Vout, 17Amps Resistive Load UUT +VCC V+ Black C16 C8 C17 ON/OFF CONTROL C8 C8 C8 L3 C8 C8 C7 Vin + Vout + Vin - Vout - Resistive Load inside a metal container L1 V- -VIN Figure 7. Driving the On/Off Control Pin (suggested circuit) Figure 8. Conducted Emissions Test Circuit [1] Conducted Emissions Parts List Reference Part Number L1 L3 C8 PE-62913 500uH,10A, MPS C7 VZ Series Description 1mH, 6A 500uH,10A 2.2ufd Qty 2 - Electrolytic Capacitor 22ufd, 100V .22ufd C16, C17 Vendor Pulse Murata Murata Panasonic Unknown [2] Conducted Emissions Test Equipment Used Rohde & Schwarz EMI Test Receiver (9KHz – 1000MHz) ESPC Rohde & Schwarz Software ESPC-1 Ver. 2.20 HP11947A Transient Limiter (Agilent) OHMITE 25W – Resistor combinations DC Source Programmable DC Power Supply Model 62012P-100-50 [3] Layout Recommendations Most applications can use the filtering which is already installed inside the converter or with the addition of the recommended external capacitors. For greater emissions suppression, consider additional filter components and/or shielding. Emissions performance will depend on the user’s PC board layout, the chassis shielding environment and choice of external components. Please refer to Application Note GEAN02 for further discussion. Since many factors affect both the amplitude and spectra of emissions, we recommend using an engineer who is experienced at emissions suppression. www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 16 of 17 UWQ-12/17-Q48T-C Series Wide Input, Isolated DOSA Quarter Brick DC-DC Converters with Trim and Sense Vertical Wind Tunnel IR Transparent optical window Variable speed fan Unit under test (UUT) Murata Power Solutions employs a computer controlled custom-designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate airflow and heat dissipation analysis of power products. The system includes a precision low flow-rate anemometer, variable speed fan, power supply input and load controls, temperature gauges, and adjustable heating element. The IR camera monitors the thermal performance of the Unit Under Test (UUT) under static steady-state conditions. A special optical port is used which is transparent to infrared wavelengths. IR Video Camera Heating element Precision low-rate anemometer 3” below UUT Both through-hole and surface mount converters are soldered down to a 10" by 10" host carrier board for realistic heat absorption and spreading. Both longitudinal and transverse airflow studies are possible by rotation of this carrier board since there are often significant differences in the heat dissipation in the two airflow directions. The combination of adjustable airflow, adjustable ambient heat, and adjustable Input/Output currents and voltages mean that a very wide range of measurement conditions can be studied. The collimator reduces the amount of turbulence adjacent to the UUT by minimizing airflow turbulence. Such turbulence influences the effective heat transfer characteristics and gives false readings. Excess turbulence removes more heat from some surfaces and less heat from others, possibly causing uneven overheating. Ambient temperature sensor Airflow collimator Both sides of the UUT are studied since there are different thermal gradients on each side. The adjustable heating element and fan, built-in temperature gauges, and no-contact IR camera mean that power supplies are tested in real-world conditions. Figure 9. Vertical Wind Tunnel 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. 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. © 2014 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_UWQ-12-17-Q48T-C.A02 Page 17 of 17