® MTQZ75 SERIES DC/DC CONVERTER 75W, Railway Applications FEATURES ►Small 57.9 x 36.8 x12.7 mm Package ►Input Ranges 43-101VDC or 66-160VDC ►Meets Railway Standard EN50155 (IEC60571) and EN45545-2 ►Compliance to Railway EMC Standard EN50121-3-2 ►High Efficiency up to 92% ►No Minimum Load Requirement ►Operating Temp. Range -40°C to +70°C. ►Reinforced Insulation 3000 VACrms ►Under-Voltage Shutdown ►Remote On/Off ►UL/cUL/IEC/EN 60950-1 Safety Approval ►Metal Case with isolated Baseplate ►3 Years Product Warranty PRODUCT OVERVIEW The MINMAX MTQZ75 series is a new generation of high performance, convection-cooled 75W 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 +70°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 15000 1170 50 12 6250 1132 45 MTQZ75-72S05 MTQZ75-72S12 MTQZ75-72S15 72 ( 43 ~ 101 ) Output Current Input Current Over Voltage Protection Max. capacitive Load @No Load Reflected Ripple Current mA(typ.) mA(typ.) VDC μF % 6.2 25500 89 15 4400 92 35 Efficiency (typ.) @Max. Load 15 5000 1132 45 18 2800 92 MTQZ75-72S24 24 3125 1145 55 30 1100 91 MTQZ75-110S05 5 15000 766 40 6.2 25500 89 12 6250 749 35 15 4400 91 15 5000 749 35 18 2800 91 24 3125 758 50 30 1100 90 MTQZ75-110S12 MTQZ75-110S15 110 ( 66 ~ 160 ) MTQZ75-110S24 35 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] 2014/12/24 REV:6 Min. Unit Input Specifications comply to Tel:886-6-2923150 Page 1 of 7 Internal Pi Network VDC S ® MTQZ75 SERIES DC/DC CONVERTER 75W, Railway Applications Output Specifications Parameter Conditions Min. Typ. Max. Unit Full Load and Nominal Vin --- --- ±1.0 % Line Regulation Vin=Min. to Max. @ Full Load --- --- ±0.2 % Load Regulation Min. Load to Full Load --- --- ±0.3 % Output Voltage Setting Accuracy Min.Load No minimum Load Requirement Ripple & Noise(3) 0-20 MHz Bandwidth Transient Recovery Time 24V Output --- --- 150 mV P-P Other Output --- --- 100 mV P-P ----- 250 ±3 --±5 μsec % --- --- ±0.02 %/℃ 25% Load Step Change (2) Transient Response Deviation Temperature Coefficient Over Current Protection Current Limitation at 150% typ. of Iout max., Hiccup Short Circuit Protection Hiccup Mode 0.3Hz typ. General Specifications Parameter I/O Isolation Voltage (60 sec.) Conditions Min. Typ. Max. Unit reinforced insulation 3000 --- --- VACrms Isolation Voltage Input/Output to case 1500 --- --- VDC I/O Isolation Resistance 500 VDC 1000 --- --- MΩ I/O Isolation Capacitance 100KHz, 1V --- --- 3000 pF --- 320 --- KHz 143,800 --- --- Hours Typ. Max. Unit Switching Frequency MIL-HDBK-217F@25℃ Full Load, Ground Benign MTBF(calculated) Safety Standards cUL/UL 60950-1, IEC/EN 60950-1,EN50155,IEC60571 Remote On/Off Control Parameter Conditions Min. Converter On 3.5V ~ 12V or Open Circuit Converter Off 0V ~ 1.2V or Short Circuit Control Input Current (on) Vctrl = 5.0V --- 0.5 --- mA Control Input Current (off) Vctrl = 0V --- -0.5 --- mA Control Common Referenced to Negative Input Standby Input Current Nominal Vin --- 2.5 --- mA Conditions Min. Typ. Max. Unit % of Nominal Output Voltage ±10 --- --- % Output Voltage Trim Parameter Trim Up / Down Range (See Page 6) E-mail:[email protected] 2014/12/24 REV:6 Tel:886-6-2923150 Page 2 of 7 ® MTQZ75 SERIES DC/DC CONVERTER 75W, Railway Applications Environmental Specifications Parameter Conditions/Model Min. Operating Temperature Range Natural Convection (8) Nominal Vin, Load 100% Inom. (for Power Derating see relative Derating Curves) MTQZ75-72S12, MTQZ75-72S15 Max. without Heatsink with Heatsink 56 61 49 55 43 48 MTQZ75-72S24 MTQZ75-110S12, MTQZ75-110S15 -40 MTQZ75-110S24 MTQZ75-72S05, MTQZ75-110S05 Thermal Impedance 36 Unit ℃ 42 Natural Convection without Heatsink 7.5 --- Natural Convection with Heatsink 6.8 --- 100LFM Convection without Heatsink 6.1 --- 100LFM Convection with Heatsink 4.1 --- 200LFM Convection without Heatsink 5.3 --- ℃/W 200LFM Convection with Heatsink 3.3 --- 400LFM Convection without Heatsink 3.9 --- 400LFM Convection with Heatsink 2.2 --- Base-plate Temperature Range -40 +105 ℃ Over Temperature Protection (Base Plate) --- +110 ℃ Storage Temperature Range -50 +125 ℃ Cooling Test Compliance to IEC/EN60068-2-1 Dry Heat Compliance to IEC/EN60068-2-2 Damp Heat Compliance to IEC/EN60068-2-30 Shock & Vibration Test Compliance to IEC/EN 61373 Fire Protection Test Compliance to EN45545-2 Operating Humidity (non condensing) 5 95 % rel. H Lead Temperature (1.5mm from case for 10Sec.) --- 260 ℃ EMC Specifications Parameter Standards & Level Compliance with EN 50121-3-2 Railway Applications EN55022, EN55011, FCC part 15 General EMI Performance Class A (see Page 6) EN55024 EMS ESD Radiated immunity Fast transient(7) Surge(7) Conducted immunity E-mail:[email protected] 2014/12/24 REV:6 EN61000-4-2 air ± 8KV , Contact ± 6KV EN61000-4-3 10V/m EN61000-4-4 ±2KV EN61000-4-5 ±2KV EN61000-4-6 10Vrms Tel:886-6-2923150 Page 3 of 7 A A A A A ® MTQZ75 SERIES DC/DC CONVERTER 75W, Railway Applications Power Derating Curve 100 100 Natural Convection 20LFM 100LFM 60 Natural Convection 20LFM 80 Output Power (%) Output Power (%) 80 200LFM 400LFM 40 100LFM 60 200LFM 400LFM 40 20 20 0 0 ~ -40 0 20 40 60 80 ~ -40 100 110 0 MTQZ75-72S12, MTQZ75-72S15 Derating Curve without Heatsink 80 100LFM 200LFM 60 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 MTQZ75-110S12,MTQZ75-110S15, MTQZ75-72S24 Derating Curve with Heatsink 100 100 Natural Convection 20LFM 100LFM 60 Natural Convection 20LFM 80 Output Power (%) 80 200LFM 400LFM 40 100LFM 60 200LFM 400LFM 40 20 20 0 0 ~ -40 0 20 40 60 80 ~ -40 100 110 0 20 40 60 80 100 110 Ambient Temperature C Ambient Temperature C MTQZ75-110S24 Derating Curve without Heatsink MTQZ75-110S24 Derating Curve with Heatsink 100 100 Natural Convection 20LFM 100LFM 60 200LFM 400LFM 40 Natural Convection 20LFM 80 Output Power (%) 80 60 100LFM 40 400LFM 200LFM 20 20 0 0 ~ -40 0 20 40 60 80 100 110 Ambient Temperature C MTQZ75-72S05, MTQZ75-110S05 Derating Curve without Heatsink ~ -40 0 20 40 60 80 MTQZ75-72S05, MTQZ75-110S05 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. To order the converter with heatsink, please add a suffix -HS (e.g. MTQZ75-72S05-HS) to order code. Part number for heat sink MT-HS1. To meet EN61000-4-4 & EN61000-4-5 by adding a capacitor across the input pins.Suggested capacitor: CHEMI-CON KXG 470μF/200V. Please parallel a capacitor across the input pins under specification testing.Suggested capacitor: CHEMI-CON KXJ 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] REV:6 Tel:886-6-2923150 Page 4 of 7 100 110 Ambient Temperature C Notes 2014/12/24 100 110 Ambient Temperature C MTQZ75-110S12,MTQZ75-110S15, MTQZ75-72S24 Derating Curve without Heatsink 1 2 3 4 5 6 7 8 9 10 100 110 Natural Convection 20LFM 80 Output Power (%) Output Power (%) 60 100 Natural Convection 20LFM 80 Output Power (%) 40 MTQZ75-72S12, MTQZ75-72S15 Derating Curve with Heatsink 100 Output Power (%) 20 Ambient Temperature C Ambient Temperature C ® MTQZ75 SERIES DC/DC CONVERTER 75W, 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] 26.20 [1.03] 15.24 [0.60] 36.8 [1.45] 50.80 [2.00] 47.20 [1.86] 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 ►All dimensions in mm (inches) ►Tolerance: X.X±0.5 (X.XX±0.02) 12.7 [0.50] 4.10 [0.16] min BOTTOM VIEW Function 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 (2.28x1.45x0.5 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 Weight : : Epoxy (UL94-V0) 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] 2014/12/24 REV:6 Tel:886-6-2923150 Page 5 of 7 ® MTQZ75 SERIES DC/DC CONVERTER 75W, Railway Applications Recommended Filter for EN 55011&55022, class A ; FCC part 15 ,level A Compliance C3 C4 L1 +Output +Input C1 MTQZ75 Module -Input -Output C5 Model Type MTQZ75-72SXX MTQZ75-110SXX C6 L1 C1 C3 C4 C5 C6 450μH/450μH CHEMI-CON KXG Series 68μF/200V 2200pF 3KV 2200pF 3KV 2200pF 3KV 2200pF 3KV External Output Trimming Output can be externally trimmed by using the method shown below MTQZ75-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 MTQZ75-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 MTQZ75-XXS12 Trim Table Trim down 1 Vout= Vox0.99 Rd= 413.55 Trim up Vout= Ru= 1 Vox1.01 351.00 MTQZ75-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 E-mail:[email protected] 2014/12/24 REV:6 Tel:886-6-2923150 Page 6 of 7 ® MTQZ75 SERIES DC/DC CONVERTER 75W, 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 DC / DC Converter Current Probe Cin +Out -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. Overcurrent 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 DC Power Source - +Out Single Output DC / DC Converter -Vin Cout Load -Out Maximum Capacitive Load The MTQZ75 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. 2014/12/24 REV:6 Page 7 of 7