® MTQZ50 SERIES DC/DC CONVERTER 50W, Railway Applications FEATURES ►Industrial Standard Quarter Brick Package ►Wide Input Range 43-101VDC & 66-160VDC ►Excellent Efficiency up to 92% ►I/O Isolation 3000VAC with Reinforced Insulation ►Operating Ambient Temp. Range -40°C to +85°C ►No Min. Load Requirement ►Overload/Voltage/Temp. and Short Circuit Protection ►Remote On/Off, Output Voltage Trim, Output Sensing ►Vibration and Shock meets EN61373 ►Cooling, Dry & Damp Heat Test meet IEC/EN60068-2-1,2,30 ►Fire Protection Test meets EN45545-2 ►Railway EMC Standard meets EN50121-3-2 ►Railway Approval meets EN50155 (IEC60571) ►UL/cUL/IEC/EN 60950-1 Safety Approval & CE Marking PRODUCT OVERVIEW The MINMAX MTQZ50 series is a new generation of high performance, convection-cooled 50W dc-dc converters designed specifically for railway applications.They are available for the popular railway input voltages of either 72(43-101)VDC or 110(66-160)VDC. The converters conform to railway industry transient standard EN50155 and complies also with EMC standard EN50121-3-2. Advanced circuit topology provides a very high efficiency up to 92% which allows operating temperatures range of -40°C to +85°C. For improved heat dissipation the modules can be supplied with a heatsink.Further product features include high, reinforced insulation,remote On/Off control, under-voltage shutdown as well as overload and over-temperature protection. Model Selection Guide Model Number Input Voltage (Range) Output Voltage Max. @Max. Load VDC VDC mA mA(typ.) 5 10000 771 50 12 4170 755 45 15 3330 754 45 MTQZ50-72S24 24 2080 762 MTQZ50-110S05 5 10000 12 15 24 MTQZ50-72S05 MTQZ50-72S12 MTQZ50-72S15 MTQZ50-110S12 MTQZ50-110S15 72 ( 43 ~ 101 ) 110 ( 66 ~ 160 ) MTQZ50-110S24 Output Current Input Current Over Voltage Protection Max. capacitive Load @No Load Reflected Ripple Current mA(typ.) mA(typ.) VDC μF % 6.2 17000 90 15 2950 92 18 1900 92 50 30 740 91 505 40 6.2 17000 90 4170 500 35 15 2950 91 3330 494 35 18 1900 92 2080 499 40 30 740 91 35 35 Efficiency (typ.) @Max. Load Input Specifications Parameter Model General Input Surge Voltage (100ms. max) Start-up Threshold Voltage Under Voltage Shutdown Start-up Time Typ. Max. 72V Input Models -0.7 --- 165 110V Input Models -0.7 --- 250 72V Input Models --- --- 43 110V Input Models --- --- 66 72V Input Models --- 40 --- 110V Input Models --- 63 --- --- 0.35 All Models Input Filter E-mail:[email protected] 2015/07/31 Min. Unit Input Specifications comply to REV:7 Tel:886-6-2923150 Page 1 of 7 Internal Pi Type --- VDC S ® MTQZ50 SERIES DC/DC CONVERTER 50W, Railway Applications Remote On/Off Control Parameter Converter On Converter Off Control Input Current (on) Control Input Current (off) Control Common Standby Input Current Conditions Vctrl = 5.0V Vctrl = 0V Nominal Vin Min. 3.5V ~ 12V or Open Circuit 0V ~ 1.2V or Short Circuit ----Referenced to Negative Input --- Typ. Max. Unit 0.5 -0.5 ----- mA mA 2.5 --- mA Max. ±1.0 ±0.2 ±0.3 Unit %Vnom. % % 150 100 --±5 ±0.02 ±10 --- mV P-P mV P-P μsec % %/℃ % % Max. ------3000 --- Unit VACrms VDC MΩ pF KHz Hours Output Specifications Parameter Output Voltage Setting Accuracy Line Regulation Load Regulation Minimum Load Conditions Min. Typ. ----Vin=Min. to Max. @ Full Load ----Io=0% to 100% ----No minimum Load Requirement 24V Output ----0-20 MHz Bandwidth Other Ooutput ------250 25% Load Step Change (2) --±3 ----% of Nominal Output Voltage ----Hiccup --150 Hiccup Mode 0.5 Hz typ., Automatic Recovery Ripple & Noise(3) Transient Recovery Time Transient Response Deviation Temperature Coefficient Trim Up / Down Range (See Page 5) Over Load Protection Short Circuit Protection General Specifications Parameter I/O Isolation Voltage Isolation Voltage Input/Output to case I/O Isolation Resistance I/O Isolation Capacitance Switching Frequency MTBF(calculated) Safety Standards Conditions Reinforced Insulation, Rated For 60 Seconds Min. 3000 1500 1000 ----- Typ. ----500 VDC --100KHz, 1V --320 MIL-HDBK-217F@25℃ Full Load, Ground Benign 314,900 cUL/UL 60950-1, IEC/EN 60950-1, EN50155,IEC60571 Environmental Specifications Parameter Conditions/Model Operating Ambient Temperature Range Natural Convection (9) Nominal Vin, Load 100% Inom. (for Power Derating see relative Derating Curves) MTQZ50-72S12 MTQZ50-72S15, MTQZ50-110S15 MTQZ50-72S24 MTQZ50-110S12, MTQZ50-110S24 MTQZ50-72S05, MTQZ50-110S05 Natural Convection without Heatsink Natural Convection with Heatsink 100LFM Convection without Heatsink 100LFM Convection with Heatsink 200LFM Convection without Heatsink 200LFM Convection with Heatsink 400LFM Convection without Heatsink 400LFM Convection with Heatsink Thermal Impedance Base-plate Temperature Range Over Temperature Protection (Base Plate) Storage Temperature Range Cooling Dry Heat Damp Heat Shock & Vibration Test Fire Protection Test Operating Humidity (non condensing) Lead Temperature (1.5mm from case for 10Sec.) E-mail:[email protected] 2015/07/31 REV:7 Tel:886-6-2923150 Page 2 of 7 Min. Max. without Heatsink with Heatsink -40 7.5 6.8 6.1 4.1 5.3 3.3 3.9 2.2 -40 ---50 Compliance to IEC/EN60068-2-1 Compliance to IEC/EN60068-2-2 Compliance to IEC/EN60068-2-30 Compliance to IEC/EN 61373 Compliance to EN45545-2 5 --- 72 75 68 71 63 Unit ℃ 67 ----------------+105 +110 +125 95 260 ℃/W ℃ ℃ ℃ % rel. H ℃ ® MTQZ50 SERIES DC/DC CONVERTER 50W, Railway Applications EMC Specifications Parameter Standards & Level General EMI Conduction and Radiation EN55024 ESD Radiated immunity Fast transient(7) Surge(7) Conducted immunity EMS Performance Compliance with EN 50121-3-2 Railway Applications EN55022, EN55011, FCC part 15 Class A EN61000-4-2 air ± 8KV , Contact ± 6KV EN61000-4-3 10V/m EN61000-4-4 ±2KV EN61000-4-5 ±2KV EN61000-4-6 10Vrms A A A A A External Filter meets Conducted and Radiated EMI EN55011&EN55022 class A; FCC part 15 level A C3 C4 L1 +Output +Input C1 MTQZ50 Module -Input -Output C5 Model MTQZ50-72SXX MTQZ50-110SXX L1 C1 C3 C4 C5 C6 450μH/450μH CHEMI-CON KXG Series 68μF/200V 2200pF 3KV 2200pF 3KV 2200pF 3KV 2200pF 3KV E-mail:[email protected] 2015/07/31 REV:7 C6 Tel:886-6-2923150 Page 3 of 7 ® MTQZ50 SERIES DC/DC CONVERTER 50W, Railway Applications Power Derating Curve 100 100 Natural Convection 20LFM Output Power (%) 100LFM 60 200LFM 400LFM 40 100LFM 60 200LFM 400LFM 40 20 20 0 40 0 ~ 0 20 40 60 80 100 ~ -40 110 0 Ambient Temperature C 40 100 110 Natural Convection 20LFM Output Power (%) 80 100LFM 60 200LFM 400LFM 40 20 100LFM 60 200LFM 400LFM 40 20 0 0 ~ -40 0 20 40 60 80 100 110 ~ -40 0 Ambient Temperature C 20 40 60 80 100 110 Ambient Temperature C MTQZ50-72S24,MTQZ50-110S12,MTQZ50-110S24 Derating Curve without Heatsink MTQZ50-72S24,MTQZ50-110S12,MTQZ50-110S24 Derating Curve with Heatsink 100 100 Natural Convection 20LFM 100LFM 60 Natural Convection 20LFM 80 Output Power (%) 80 200LFM 400LFM 40 20 100LFM 60 200LFM 400LFM 40 20 0 0 ~ -40 0 20 40 60 80 100 110 Ambient Temperature C MTQZ50-72S05,MTQZ50-110S05 Derating Curve without Heatsink ~ -40 0 20 40 REV:7 Tel:886-6-2923150 Page 4 of 7 80 100 110 MTQZ50-72S05,MTQZ50-110S05 Derating Curve with Heatsink Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%. Ripple & Noise measurement with a 1μF MLCC and a 10μF Tantalum Capacitor. Other input and output voltage may be available, please contact factory. Part number for heat sink only MT-HS1. To meet EN61000-4-4 & EN61000-4-5 by adding a capacitor across the input pins. Suggested capacitor:470μF/200V. Please parallel a capacitor across the input pins under specification testing. Suggested capacitor: 68μF/200V. That “natural convection” is about 20LFM but is not equal to still air (0 LFM). Specifications are subject to change without notice. E-mail:[email protected] 60 Ambient Temperature C Notes 2015/07/31 80 100 Natural Convection 20LFM 80 1 2 3 4 6 7 8 9 10 60 MTQZ50-72S12,MTQZ50-72S15,MTQZ50-110S15 Derating Curve with Heatsink 100 Output Power (%) 20 Ambient Temperature C MTQZ50-72S12,MTQZ50-72S15,MTQZ50-110S15 Derating Curve without Heatsink Output Power (%) Natural Convection 20LFM 80 Output Power (%) 80 ® MTQZ50 SERIES DC/DC CONVERTER 50W, Railway Applications Package Specifications Mechanical Dimensions Pin Connections Pin 57.9 [2.28] Mounting Inserts M3x0.5 Through 4pl. 15.24 [0.60] 4 3 5 2 6 7 1 8 7.62 [0.30] 15.24 [0.60] 36.8 [1.45] 26.20 [1.03] 50.80 [2.00] BOTTOM VIEW 4.10 [0.16] min 47.20 [1.86] Function 1 +Vin 2 Remote On/Off 3 -Vin 4 -Vout 5 * -Sense 6 Trim 7 * +Sense 8 +Vout * If remote sense not used the +sense should be connected to +output and –sense should be connected to –output Maximum output deviation is 10% inclusive of trim 1.00 [0.04] DIA 6PLACES 1.50 [0.06] DIA 2PLACES 12.7 [0.50] ►All dimensions in mm (inches) ►Tolerance: X.X±0.5 (X.XX±0.02) X.XX±0.25 ( X.XXX±0.01) ►Pin diameter 1.0 ±0.05 (0.04±0.002) ►Pin diameter 1.5 ±0.05 (0.06±0.002) Physical Characteristics Case Size : 57.9x36.8x12.7 mm (2.28x1.45x0.50 inches) Case Material : Aluminum Frame with Black Anodized Coating Top Side Base Material : Aluminum Plate Bottom Side Base Material : Non-conductive Black Plastic Base Plate Potting Material : Epoxy (UL94-V0) Weight : 61g Heatsink (Option –HS) Physical Characteristics Heatsink Material : Aluminum Finish : Black Anodized Coating Weight : 13g 20.0 [0.78] Max Heat-sink Thermal pad Converter ►The advantages of adding a heatsink are: 1. To improve heat dissipation and increase the stability and reliability of the DC/DC converters at high operating temperatures. 2. To increase operating temperature of the DC/DC converter, please refer to Derating Curve. E-mail:[email protected] 2015/07/31 REV:7 Tel:886-6-2923150 Page 5 of 7 ® MTQZ50 SERIES DC/DC CONVERTER 50W, Railway Applications External Output Trimming Output can be externally trimmed by using the method shown below MTQZ50-XXS05 Trim Table Trim down 1 Vout= Vox0.99 Rd= 138.88 2 Vox0.98 62.41 3 Vox0.97 36.92 4 Vox0.96 24.18 5 Vox0.95 16.53 6 Vox0.94 11.44 7 Vox0.93 7.79 8 Vox0.92 5.06 9 Vox0.91 2.94 10 Vox0.90 1.24 % Volts KOhms 2 Vox1.02 47.76 3 Vox1.03 28.06 4 Vox1.04 18.21 5 Vox1.05 12.30 6 Vox1.06 8.36 7 Vox1.07 5.55 8 Vox1.08 3.44 9 Vox1.09 1.79 10 Vox1.10 0.48 % Volts KOhms 2 Vox0.98 184.55 3 Vox0.97 108.22 4 Vox0.96 70.05 5 Vox0.95 47.15 6 Vox0.94 31.88 7 Vox0.93 20.98 8 Vox0.92 12.80 9 Vox0.91 6.44 10 Vox0.90 1.35 % Volts KOhms 2 Vox1.02 157.50 3 Vox1.03 93.00 4 Vox1.04 60.75 5 Vox1.05 41.40 6 Vox1.06 28.50 7 Vox1.07 19.29 8 Vox1.08 12.37 9 Vox1.09 7.00 10 Vox1.10 2.70 % Volts KOhms 2 Vox0.98 238.61 3 Vox0.97 141.24 4 Vox0.96 92.56 5 Vox0.95 63.35 6 Vox0.94 43.87 7 Vox0.93 29.96 8 Vox0.92 19.53 9 Vox0.91 11.41 10 Vox0.90 4.92 % Volts KOhms 2 Vox1.02 189.89 3 Vox1.03 112.26 4 Vox1.04 73.44 5 Vox1.05 50.15 6 Vox1.06 34.63 7 Vox1.07 23.54 8 Vox1.08 15.22 9 Vox1.09 8.75 10 Vox1.10 3.58 % Volts KOhms MTQZ50-XXS024 Trim Table Trim down 1 2 Vout= Vox0.99 Vox0.98 Rd= 598.66 267.78 3 Vox0.97 157.49 4 Vox0.96 102.34 5 Vox0.95 69.25 6 Vox0.94 47.19 7 Vox0.93 31.44 8 Vox0.92 19.62 9 Vox0.91 10.43 10 Vox0.90 3.08 % Volts KOhms 3 Vox1.03 128.31 4 Vox1.04 83.46 5 Vox1.05 56.55 6 Vox1.06 38.61 7 Vox1.07 25.79 8 Vox1.08 16.18 9 Vox1.09 8.70 10 Vox1.10 2.72 % Volts KOhms Trim up Vout= Ru= 1 Vox1.01 106.87 MTQZ50-XXS12 Trim Table Trim down 1 Vout= Vox0.99 Rd= 413.55 Trim up Vout= Ru= 1 Vox1.01 351.00 MTQZ50-XXS15 Trim Table Trim down 1 Vout= Vox0.99 Rd= 530.73 Trim up Vout= Ru= Trim up Vout= Ru= 1 Vox1.01 422.77 1 Vox1.01 487.14 2 Vox1.02 218.02 Order Code Table Standard With heatsink MTQZ50-72S05 MTQZ50-72S05-HS MTQZ50-72S12 MTQZ50-72S12-HS MTQZ50-72S15 MTQZ50-72S15-HS MTQZ50-72S24 MTQZ50-72S24-HS MTQZ50-110S05 MTQZ50-110S05-HS MTQZ50-110S12 MTQZ50-110S12-HS MTQZ50-110S15 MTQZ50-110S15-HS MTQZ50-110S24 MTQZ50-110S24-HS E-mail:[email protected] 2015/07/31 REV:7 Tel:886-6-2923150 Page 6 of 7 ® MTQZ50 SERIES DC/DC CONVERTER 50W, Railway Applications Test Setup Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with a inductor Lin (4.7μH) and Cin (220μF, ESR < 1.0Ω at 100 KHz) to simulate source impedance. Capacitor Cin, offsets possible battery impedance. Current ripple is measured at the input terminals of the module, measurement bandwidth is 0-500 KHz. To Oscilloscope + + Battery +Vin Lin Current Probe Cin +Out DC / DC Converter -Vin Load -Out Peak-to-Peak Output Noise Measurement Test Use a 1μF ceramic capacitor and a 10μF tantalum capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 0-20 MHz. Position the load between 50 mm and 75 mm from the DC/DC Converter. +Vin +Out Copper Strip Single Output DC / DC Converter -Vin Cout -Out Scope Resistive Load Copper Strip Technical Notes Remote On/Off Positive logic remote on/off turns the module on during a logic high voltage on the remote on/off pin, and off during a logic low. To turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the -Vin terminal. The switch can be an open collector or equivalent. A logic low is 0V to 1.2V. A logic high is 3.5V to 12V. The maximum sink current at the on/off terminal (Pin 2) during a logic low is -500μA. Overload Protection To provide hiccup mode protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can endure overload for an unlimited duration. Overvoltage Protection The output overvoltage clamp consists of control circuitry, which is independent of the primary regulation loop, that monitors the voltage on the output terminals. The control loop of the clamp has a higher voltage set point than the primary loop. This provides a redundant voltage control that reduces the risk of output overvoltage. The OVP level can be found in the output data. Output Ripple Reduction A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance. To reduce output ripple, it is recommended to use 4.7μF capacitors at the output. + +Vin - +Out Single Output DC / DC Converter DC Power Source -Vin Cout Load -Out Maximum Capacitive Load The MTQZ50 series has limitation of maximum connected capacitance at the output. The power module may be operated in current limiting mode during start-up, affecting the ramp-up and the startup time. The maximum capacitance can be found in the data sheet. Thermal Considerations Many conditions affect the thermal performance of the power module, such as orientation, airflow over the module and board spacing. To avoid exceeding the maximum temperature rating of the components inside the power module, the case temperature must be kept below 105℃. The derating curves are determined from measurements obtained in a test setup. Position of air velocity probe and thermocouple 15mm / 0.6in 50mm / 2in Air Flow DUT 18, Sin Sin Road, An-Ping Industrial District, Tainan 702, Taiwan Tel: 886-6-2923150 Fax: 886-6-2923149 E-mail: [email protected] Minmax Technology Co., Ltd. 2015/07/31 REV:7 Page 7 of 7