® MJWI20 SERIES DC/DC CONVERTER 20W, Highest Power Density FEATURES ►Smallest Encapsulated 20W Converter ►Ultra-compact 1" X 1" Package ►Ultra-wide 4:1 Input Voltage Range ►Fully Regulated Output Voltage ►Excellent Efficiency up to 89% ►I/O Isolation 1500 VDC ►Operating Temp. Range -40℃ to +85℃ ►No Min. Load Requirement ►Overload/Voltage and Short Circuit Protection ►Remote On/Off Control, Output Voltage Trim ►Shielded Metal Case with Insulated Baseplate ►Conducted EMI meets EN55022 Class A & FCC Level A ►UL/cUL/IEC/EN 60950-1 Safety Approval PRODUCT OVERVIEW The MINMAX MJWI20 series is a new generation of high performance dc-dc converter modules setting a new standard concerning power density. The product offers fully 20W in a shielded metal package with dimensions of just 1.0"x1.0"x 0.4". All models provide ultra-wide 4:1 input voltage range and tight output voltage regulation. State-of the-art circuit topology provides a very high efficiency up to 89% which allows an operating temperature range of -40°C to +85°C. Further features include remote On/Off, trimmable output voltage as well as overload protection and over-temperature protection. Typical applications for these converters are battery operated equipment, instrumentation, distributed power architectures in communication and industrial electronics and other space critical applications. Model Selection Guide Model Number MJWI20-24S033 MJWI20-24S05 MJWI20-24S12 MJWI20-24S15 MJWI20-24S24 MJWI20-24D12 MJWI20-24D15 MJWI20-48S033 MJWI20-48S05 MJWI20-48S12 MJWI20-48S15 MJWI20-48S24 MJWI20-48D12 MJWI20-48D15 Input Voltage (Range) Output Voltage VDC VDC 3.3 5 12 15 24 ±12 ±15 3.3 5 12 15 24 ±12 ±15 24 (9 ~ 36) 48 (18 ~ 75) Output Current Input Current Max. Min. @Max. Load @No Load mA 4500 4000 1670 1340 835 ±835 ±670 4500 4000 1670 1340 835 ±835 ±670 mA 0 0 0 0 0 ±60 ±50 0 0 0 0 0 ±60 ±50 mA(typ.) 711 936 938 941 949 938 941 352 468 469 471 474 469 471 mA(typ.) 80 90 40 40 40 40 40 40 45 25 25 25 25 25 Reflected Ripple Current Over Voltage Protection Max. capacitive Load mA (typ.) VDC 3.9 6.2 15 18 30 ±15 ±18 3.9 6.2 15 18 30 ±15 ±18 μF 10300 6800 1200 750 300 680# 380# 10300 6800 1200 750 300 680# 380# 50 30 Efficiency (typ.) @Max. Load % 87 89 89 89 88 89 89 88 89 89 89 88 89 89 # For each output Input Specifications Parameter Model 24V Input Models 48V Input Models 24V Input Models 48V Input Models Input Surge Voltage (1 sec. max.) Start-Up Threshold Voltage Min. -0.7 -0.7 ----- Typ. --------- Max. 50 100 9 18 Unit VDC Input Polarity Protection Power Up Start Up Time Remote On/Off Conducted EMI Short Circuit Current None ----30 ms Nominal Vin and Constant Resistive Load ----30 ms Internal LC Filter (for EN55022,Class A and FCC level A compliance see page 8) All Models --- (Hiccup Mode, 1.5 Hz typ.) E-mail:[email protected] Tel:886-6-2923150 2015/02/13 REV:17 Page 1 of 9 ® MJWI20 SERIES DC/DC CONVERTER 20W, Highest Power Density Output Specifications Parameter Conditions Min. Typ. Max. Unit --- --- ±1.0 %Vnom. Dual Output, Balanced Loads --- --- ±2.0 % Single Output --- --- ±0.2 % Dual Output --- --- ±0.5 % 3.3V & 5V --- --- ±0.5 % 12V,15V & 24V --- --- ±0.2 % --- --- ±1.0 % Output Voltage Setting Accuracy Output Voltage Balance Line Regulation Vin=Min. to Max. @Full Load Load Regulation Min. Load to Full Load Single Output Dual Output Load Cross Regulation (Dual Output) Ripple & Noise Asymmetrical Load 25%/100% Full Load --- --- ±5.0 % 3.3V & 5V Models --- 75 --- mV P-P 12V & 15V Models --- 100 --- mV P-P 24V Models --- 150 --- mV P-P Dual Output Models --- 100 --- mV P-P ----- 300 ±3 --±5 μsec % --- --- ±0.02 %/℃ 0-20 MHz Bandwidth Transient Recovery Time Transient Response Deviation 25% Load Step Change Temperature Coefficient Over Current Protection Current Limitation at 150% typ. of Iout max., Hiccup Short Circuit Protection Hiccup Automatic Recovery Over Voltage Protection For Shutdown Voltage see Model Selection Guide General Specifications Parameter Conditions Min. Typ. Max. Unit 60 Seconds 1500 --- --- VDC I/O Isolation Resistance 500 VDC 1000 --- --- MΩ I/O Isolation Capacitance 100KHz, 1V --- --- 1500 pF --- 330 --- KHz I/O Isolation Voltage Switching Frequency MTBF(calculated) Safety Approvals MIL-HDBK-217F@25℃, Ground Benign 451,600 Hours UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-report) Remote On/Off Control Parameter Conditions Converter On Min. 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 Control Common Referenced to Negative Input Standby Input Current Supply Off & Nominal Vin --- 10 --- mA Conditions Min. Typ. Max. Unit % of nominal output voltage ±10 --- --- % Output Voltage Trim Parameter Trim Up / Down Range E-mail:[email protected] 2015/02/13 REV:17 Tel:886-6-2923150 Page 2 of 9 ® MJWI20 SERIES DC/DC CONVERTER 20W, Highest Power Density Environmental Specifications Parameter Conditions/Model Operating Temperature Range Natural Convection Nominal Vin, Load 100% Inom. (for Power Derating see relative Derating Curves) Min. Max. without Heatsink with Heatsink MJWI20-48S033 +68 +74 MJWI20-24S033 +64 +71 +60 +67 MJWI20-XXS05, MJWI20-XXS12 MJWI20-XXS15, MJWI20-XXD12 -40 Unit ℃ MJWI20-XXD15 MJWI20-XXS24 +55 +63 50LFM Convection without Heatsink 18.2 --- ℃/W 50LFM Convection with Heatsink 15.3 --- ℃/W 100LFM Convection without Heatsink 13.9 --- ℃/W 100LFM Convection with Heatsink 8.8 --- ℃/W 12.1 --- ℃/W 200LFM Convection with Heatsink 6.8 --- ℃/W 400LFM Convection without Heatsink 9.1 --- ℃/W 400LFM Convection with Heatsink 4.6 --- ℃/W Case Temperature --- +105 ℃ Storage Temperature Range -50 +125 ℃ Humidity (non condensing) --- 95 % rel. H 260 ℃ Thermal Impedance 200LFM Convection without Heatsink Cooling Free-Air convection RFI Six-Sided Shielded, Metal Case Lead Temperature (1.5mm from case for 10Sec.) E-mail:[email protected] 2015/02/13 REV:17 Tel:886-6-2923150 Page 3 of 9 --- ® MJWI20 SERIES DC/DC CONVERTER 20W, Highest Power Density Power Derating Curve 100 100 80 50LFM Output Power (%) Output Power (%) 80 100LFM 60 200LFM 400LFM 40 20 50LFM 100LFM 60 200LFM 400LFM 40 20 0 0 ~ -40 0 20 40 60 80 ~ 100 110 -40 0 20 Ambient Temperature C MJWI20-48S033 Derating Curve without Heatsink 80 50LFM Output Power (%) Output Power (%) 80 100 110 100 80 100LFM 60 200LFM 400LFM 40 50LFM 100LFM 60 200LFM 400LFM 40 20 20 0 0 ~ -40 0 20 40 60 80 ~ 100 110 -40 0 20 40 60 80 100 110 Ambient Temperature C Ambient Temperature C MJWI20-24S033 Derating Curve without Heatsink MJWI20-24S033 Derating Curve with Heatsink 100 100 80 50LFM 80 Output Power (%) Output Power (%) 60 MJWI20-48S033 Derating Curve with Heatsink 100 100LFM 60 200LFM 400LFM 40 50LFM 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 MJWI20-XXS05, MJWI20-XXS12, MJWI20-XXS15, MJWI20-XXD12, MJWI20-XXD15 Derating Curve without Heatsink MJWI20-XXS05, MJWI20-XXS12, MJWI20-XXS15, MJWI20-XXD12, MJWI20-XXD15 Derating Curve with Heatsink 100 100 80 50LFM 80 Output Power (%) Output Power (%) 40 Ambient Temperature C 100LFM 60 200LFM 400LFM 40 50LFM 100LFM 60 200LFM 400LFM 40 20 20 0 0 ~ -40 0 20 40 60 80 100 110 Ambient Temperature C MJWI20-XXS24 Derating Curve without Heatsink E-mail:[email protected] 2015/02/13 REV:17 Tel:886-6-2923150 Page 4 of 9 ~ -40 0 20 40 60 80 100 110 Ambient Temperature C MJWI20-XXS24 Derating Curve with Heatsink ® MJWI20 SERIES DC/DC CONVERTER 20W, Highest Power Density 100 100 90 90 80 80 Efficiency(%) Efficiency(%) Efficiency Curve @25℃ 70 60 50 24V 10 20 30 40 50 60 70 80 90 9V 24V 40 36V 30 60 50 9V 40 70 36V 30 100 10 20 30 % of Full Load 50 60 70 80 90 100 % of Full Load MJWI20-24S033 Efficiency vs Load Current MJWI20-24S05 Efficiency vs Load Current 100 100 90 90 80 80 Efficiency(%) Efficiency(%) 40 70 60 70 60 50 9V 50 40 24V 40 9V 24V 36V 30 36V 30 10 20 30 40 50 60 70 80 90 100 10 20 30 % of Full Load 90 80 80 Efficiency(%) Efficiency(%) 100 90 70 60 50 24V 30 50 60 70 80 90 9V 24V 36V 30 100 10 20 30 90 80 80 Efficiency(%) Efficiency(%) 90 70 60 50 18V 48V 40 75V 30 50 60 70 80 90 100 % of Full Load MJWI20-48S033 Efficiency vs Load Current E-mail:[email protected] 2015/02/13 REV:17 Tel:886-6-2923150 Page 5 of 9 50 60 70 80 90 100 MJWI20-24D15 Efficiency vs Load Current 100 40 40 % of Full Load 100 30 100 60 MJWI20-24D12 Efficiency vs Load Current 20 90 70 % of Full Load 10 80 40 36V 40 70 50 9V 40 30 60 MJWI20-24S15 Efficiency vs Load Current 100 20 50 % of Full Load MJWI20-24S12 Efficiency vs Load Current 10 40 70 60 50 18V 48V 40 75V 30 10 20 30 40 50 60 70 80 90 100 % of Full Load MJWI20-48S05 Efficiency vs Load Current ® MJWI20 SERIES DC/DC CONVERTER 20W, Highest Power Density 100 100 90 90 80 80 Efficiency(%) Efficiency(%) Efficiency Curve @25℃ 70 60 50 48V 10 20 30 40 50 60 70 80 90 18V 48V 40 75V 30 60 50 18V 40 70 75V 30 100 10 20 30 % of Full Load 90 80 80 Efficiency(%) Efficiency(%) 100 90 70 60 50 18V 48V 40 75V 30 30 40 50 60 60 70 80 90 100 MJWI20-48S15 Efficiency vs Load Current 100 20 50 % of Full Load MJWI20-48S12 Efficiency vs Load Current 10 40 70 80 90 100 % of Full Load MJWI20-48D12 Efficiency vs Load Current 70 60 50 18V 48V 40 75V 30 10 20 30 40 50 60 70 80 90 100 % of Full Load MJWI20-48D15 Efficiency vs Load Current Notes 1 2 3 4 5 6 7 8 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 Capatitor. We recommend to protect the converter by a slow blow fuse in the input supply line. Other input and output voltage may be available, please contact factory. The MJWI20 series can meet EN55022 Class A with parallel an external LC Filter to the input pins. Please refer to Test Configurations on the last page. To order the converter with heatsink, please add a suffix -HS (e.g. MJWI20-24S05-HS) to order code. Specifications are subject to change without notice. E-mail:[email protected] 2015/02/13 REV:17 Tel:886-6-2923150 Page 6 of 9 ® MJWI20 SERIES DC/DC CONVERTER 20W, Highest Power Density Package Specifications Mechanical Dimensions Pin Connections 2.54 [0.10] 25.4 [1.00] 10.16 [0.40] 10.16 [0.40] 4 Bottom View 1 2 5.08 [0.20] 6 7.62 [0.30] 1.00 [0.04] 20.3 [0.80] 5 25.4 [1.00] 3 6.0 10.16 0.5 [0.24] [0.40 0.02] Pin Single Output Dual Output 1 +Vin +Vin 2 -Vin -Vin 3 +Vout +Vout 4 Trim Common 5 -Vout -Vout 6 Remote On/Off Remote On/Off ►All dimensions in mm ►Tolerance: X.X±0.25 (inches) (X.XX±0.01) X.XX±0.13 ( X.XXX±0.005) 2.54 [0.10] ►Pin diameter 1.0 ±0.05 (0.04±0.002) Physical Characteristics Case Size : 25.4x25.4x10.16mm (1.0x1.0x0.4 inches) Case Material : Aluminium Alloy, Black Anodized Coating Base Material : FR4 PCB (flammability to UL 94V-0 rated) Pin Material : Copper Alloy with Gold Plate Over Nickel Subplate Weight : 15g Heatsink (Option –HS) Mechanical Dimensions Heatsink Material: Aluminum Finish: Anodic treatment (black) 16.3 [0.64] Weight: 2g 17.46 Max. [0.69] Max. 19.5 Max. [0.77] Max. 31.0 [1.22] Max. Heat-Sink Thermal Pad Clamp Converter E-mail:[email protected] 2015/02/13 REV:17 Tel:886-6-2923150 Page 7 of 9 ►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. ® MJWI20 SERIES DC/DC CONVERTER 20W, Highest Power Density EMI Filter meets Conducted EMI EN55022 class A; FCC part 15 level A C2 L1 +Vo Vout +Vin +Vin Model Component Value MJWI20-24XXX C1 3.3μF/50V 1210 X7R MLCC C2(24S24 only) 220pF/2KV 1808 MLCC L1 6.8μH C1 2.2μF/100V 1210 X7R MLCC C2(48S24 only) 220pF/2KV 1808 MLCC L1 12μH Load C1 MJWI20-48XXX -Vin -Vin -Vo -Vout External Output Trimming Output can be externally trimmed by using the method shown below Rd Ru 3 4 5 2 4 1 6 2 6 Trim Down Trim Up MJWI20-XXS033 Trim Table Trim down 1 2 Vout= Vox0.99 Vox0.98 Rd= 72.61 32.55 5 MJWI20 Module Bottom View MJWI20 Module Bottom View 1 3 3 Vox0.97 19.20 4 Vox0.96 12.52 5 Vox0.95 8.51 6 Vox0.94 5.84 7 Vox0.93 3.94 8 Vox0.92 2.51 9 Vox0.91 1.39 10 Vox0.90 0.50 % Volts KOhms Trim up 1 Vout= Vox1.01 Ru= 60.84 MJWI20-XXS05 Trim Table Trim down 1 Vout= Vox0.99 Rd= 138.88 2 Vox1.02 27.40 3 Vox1.03 16.25 4 Vox1.04 10.68 5 Vox1.05 7.34 6 Vox1.06 5.11 7 Vox1.07 3.51 8 Vox1.08 2.32 9 Vox1.09 1.39 10 Vox1.10 0.65 % Volts KOhms 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 Trim up 1 Vout= Vox1.01 Ru= 106.87 MJWI20-XXS12 Trim Table Trim down 1 Vout= Vox0.99 Rd= 413.55 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 Trim up 1 Vout= Vox1.01 Ru= 351.00 MJWI20-XXS15 Trim Table Trim down 1 Vout= Vox0.99 Rd= 530.73 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 Trim up 1 Vout= Vox1.01 Ru= 422.77 MJWI20-XXS24 Trim Table Trim down 1 Vout= Vox0.99 Rd= 598.66 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 2 Vox0.98 267.78 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 2 Vox1.02 218.02 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 Vox1.01 487.14 E-mail:[email protected] 2015/02/13 REV:17 Tel:886-6-2923150 Page 8 of 9 ® MJWI20 SERIES DC/DC CONVERTER 20W, Highest Power Density 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 +Out Dual Output DC / DC Converter Com. -Vin Copper Strip Copper Strip +Vin Scope Cout Resistive Load Copper Strip Cout -Out Scope 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 6) during a logic low is -500μA. The maximum allowable leakage current of a switch connected to the on/off terminal (Pin 6) at logic high (3.5V to 12V) is 10mA. 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. Input Source Impedance The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module. In applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at the input to ensure startup. Capacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use a good quality low Equivalent Series Resistance (ESR < 1.0 Ω at 100 KHz) capacitor of a 10μF for the 24V and 48V devices. + DC Power Source +Vin + +Out DC / DC Converter Load Cin - -Vin -Out 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 +Vin DC Power Source - +Out Dual Output DC / DC Com. Converter -Vin -Out Cout Load Load Cout Maximum Capacitive Load The MJWI20 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. 2015/02/13 REV:17 Page 9 of 9