® MTQZ75 SERIES DC/DC CONVERTER 75W, 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 +80°C ►No Min. Load Requirement ►Overload /Voltage/Temp. and Short Circuit Protection ►Remote On/Off, Output Voltage Trim, Output Sensing ►Vibration and Thermal Shock Test to EN61373 ►Cooling, Dry & Damp Heat Test meet IEC/EN60068-2-1,2,30 ►Fire Protection Test meets EN45545-2 ►Railway EMC Standard to EN50121-3-2 ►Railway Approval meets EN50155 (IEC60571) ►UL/cUL/IEC/EN 60950-1 Safety Approval & CE Marking 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 Input Output Number Voltage Voltage (Range) VDC MTQZ75-72S05 Output Current Input Current Reflected Over Max. capacitive Ripple Voltage Load Efficiency (typ.) Max. @Max. Load @No Load Current Protection VDC mA mA(typ.) mA(typ.) mA(typ.) VDC μF % 5 15000 1170 50 6.2 25500 89 15 4400 92 18 2800 92 91 @Max. Load MTQZ75-72S12 72 12 6250 1132 45 MTQZ75-72S15 ( 43 ~ 101 ) 15 5000 1132 45 MTQZ75-72S24 24 3125 1145 55 30 1100 MTQZ75-110S05 5 15000 766 40 6.2 25500 89 15 4400 91 18 2800 91 30 1100 90 MTQZ75-110S12 110 12 6250 749 35 MTQZ75-110S15 ( 66 ~ 160 ) 15 5000 749 35 24 3125 758 50 MTQZ75-110S24 35 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] 2015/07/31 REV:7 Min. Unit Input Specifications comply to Tel:886-6-2923150 Page 1 of 7 Internal Pi Type --- VDC S ® MTQZ75 SERIES DC/DC CONVERTER 75W, Railway Applications Remote On/Off Control Parameter Conditions Min. Converter On Typ. Max. Unit 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 mA Control Common Referenced to Negative Input Standby Input Current Nominal Vin --- 2.5 --- Conditions Min. Typ. Max. Unit Full Load and Nominal Vin --- --- ±1.0 %Vnom. Output Specifications Parameter Output Voltage Setting Accuracy Line Regulation Vin=Min. to Max. @ Full Load --- --- ±0.2 % Load Regulation Min. Load to Full Load --- --- ±0.3 % Minimum Load No minimum Load Requirement Ripple & Noise(3) 24V Output --- --- 150 mV P-P Other Output --- --- 100 mV P-P 25% Load Step Change (2) ----- 250 ±3 --±5 μsec % --- --- ±0.02 %/℃ % of nominal output voltage --- --- ±10 % 0-20 MHz Bandwidth Transient Recovery Time Transient Response Deviation Temperature Coefficient Trim Up / Down Range (See Page 6) Over Current Protection Current Limitation at 150% typ. of Iout max., Hiccup Short Circuit Protection Hiccup Mode 0.3 Hz typ, Automatic Recovery 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 Switching Frequency MIL-HDBK-217F@25℃ Full Load, Ground Benign MTBF(calculated) Safety Standards E-mail:[email protected] 2015/07/31 REV:7 143,800 UL/cUL 60950-1 recognition(UL certificate), IEC/EN 60950-1(CB-report),EN50155,IEC60571 Tel:886-6-2923150 Page 2 of 7 Hours ® MTQZ75 SERIES DC/DC CONVERTER 75W, Railway Applications Environmental Specifications Parameter Conditions/Model Operating Temperature Range Max. Min. without Heatsink with Heatsink 56 61 49 55 43 48 MTQZ75-72S12, MTQZ75-72S15 Natural Convection (8) MTQZ75-72S24 Nominal Vin, Load 100% Inom. MTQZ75-110S12, MTQZ75-110S15 (for Power Derating see relative Derating Curves) -40 MTQZ75-110S24 MTQZ75-72S05, MTQZ75-110S05 36 Natural Convection without Heatsink Thermal Impedance ℃ 42 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 --- 200LFM Convection with Heatsink 3.3 --- 400LFM Convection without Heatsink 3.9 --- 400LFM Convection with Heatsink Unit ℃/W 2.2 --- Base-plate Temperature Range -40 +105 ℃ Over Temperature Protection (Base Plate) --- +110 ℃ Storage Temperature Range -50 +125 ℃ Cooling 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 Performance Compliance with EN 50121-3-2 Railway Applications Conduction and Radiation EN55022, EN55011, FCC part 15 EN55024 ESD EN61000-4-2 air ± 8KV , Contact ± 6KV EN61000-4-3 10V/m Radiated immunity EN61000-4-4 ±2KV Fast transient(7) EN61000-4-5 ±2KV Surge(7) EN61000-4-6 10Vrms Conducted immunity General EMI EMS Class A A A A A A 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 L1 450μH/450μH E-mail:[email protected] 2015/07/31 REV:7 C1 C3 C4 C5 C6 CHEMI-CON KXG Series 2200pF 2200pF 2200pF 2200pF 68μF/200V 3KV 3KV 3KV 3KV Tel:886-6-2923150 Page 3 of 7 C6 ® MTQZ75 SERIES DC/DC CONVERTER 75W, Railway Applications Power Derating Curve MTQZ75-72S12, MTQZ75-72S15 Derating Curve without Heatsink MTQZ75-72S12, MTQZ75-72S15 Derating Curve with Heatsink MTQZ75-110S12,MTQZ75-110S15, MTQZ75-72S24 Derating Curve without Heatsink MTQZ75-110S12,MTQZ75-110S15, MTQZ75-72S24 Derating Curve with Heatsink MTQZ75-110S24 Derating Curve without Heatsink MTQZ75-110S24 Derating Curve with Heatsink MTQZ75-72S05, MTQZ75-110S05 Derating Curve without Heatsink MTQZ75-72S05, MTQZ75-110S05 Derating Curve with Heatsink Notes 1 Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted. 2 Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%. 3 Ripple & Noise measurement with a 1μF MLCC and a 10μF Tantalum Capacitor. 4 Other input and output voltage may be available, please contact factory. 5 Part number for heat sink only MT-HS1. 6 To meet EN61000-4-4 & EN61000-4-5 by adding a capacitor across the input pins.Suggested capacitor : 470μF/200V. 7 Please parallel a capacitor across the input pins under specification testing.Suggested capacitor : 68μF/200V. 8 That “natural convection” is about 20LFM but is not equal to still air (0 LFM). 9 Specifications are subject to change without notice. E-mail:[email protected] 2015/07/31 REV:7 Tel:886-6-2923150 Page 4 of 7 ® 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 6 2 7 1 8 7.62 [0.30] 15.24 [0.60] 26.20 [1.03] 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 : Case Material : 57.9x36.8x12.7 mm (2.28x1.45x0.5 inches) 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 ►The Heat-sink Thermal pad Converter 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 ® MTQZ75 SERIES DC/DC CONVERTER 75W, Railway Applications 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 Order Code Table Standard With heatsink MTQZ75-72S05 MTQZ75-72S05-HS MTQZ75-72S12 MTQZ75-72S12-HS MTQZ75-72S15 MTQZ75-72S15-HS MTQZ75-72S24 MTQZ75-72S24-HS MTQZ75-110S05 MTQZ75-110S05-HS MTQZ75-110S12 MTQZ75-110S12-HS MTQZ75-110S15 MTQZ75-110S15-HS MTQZ75-110S24 MTQZ75-110S24-HS E-mail:[email protected] 2015/07/31 REV:7 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 + + +Vin Lin DC / DC Converter Current Probe Cin Battery +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. 2015/07/31 REV:7 Page 7 of 7