® MKWI40 SERIES DC/DC CONVERTER 40W, Highest Power Density FEATURES ► Smallest Encapsulated 40W Converter! ► Package Size 2.0”x 1.0”x 0.4” ► Ultra-wide 4:1 lnput Range ► Excellent Efficiency up to 90% ► Operating Temp. Range -40°C to +80°C ► Over-temperature Protection ► I/O-isolation Voltage 1500VDC ► Remote On/Off Control ► Shielded Metal Case with Isolated Baseplate ► 3 Years Product Warranty PRODUCT OVERVIEW The MINMAX MKWI40 series is the latest generation of high performance DC-DC converter modules setting a new standard concerning power density. The product offers fully 40W in an encapsulated, shielded metal package with dimensions of just 2.0”x1.0”x0.4”. All models provide ultra-wide 4:1 input voltage range and precisely regulated output voltages. Advanced circuit topology provides a very high efficiency up to 90% which allows an operating temperature range of -40°C to +80°C. Further features include remote On/Off, trimmable output voltage, under-voltage lockout as well as overload and over-temperature protection. Typical applications for these converters are battery operated equipment, instrumentation, distributed power architectures in communication and industrial electronics and many other space critical applications. Model Selection Guide Model Input Output Number Voltage Voltage (Range) VDC MKWI40-24S033 MKWI40-24S05 MKWI40-24S12 MKWI40-24S15 MKWI40-24S24 MKWI40-24D12 MKWI40-24D15 MKWI40-48S033 MKWI40-48S05 MKWI40-48S12 MKWI40-48S15 MKWI40-48S24 MKWI40-48D12 MKWI40-48D15 24 (9 ~ 36) 48 (18 ~ 75) VDC 3.3 5 12 15 24 ±12 ±15 3.3 5 12 15 24 ±12 ±15 Output Current Input Current Max. Min. @Max. Load mA 8000 8000 3330 2670 1670 ±1670 ±1330 8000 8000 3330 2670 1670 ±1670 ±1330 mA 0 0 0 0 0 ±145 ±110 0 0 0 0 0 ±145 ±110 mA(typ.) 1240 1850 1870 1870 1870 1890 1890 620 930 930 930 940 950 950 Reflected Over Max. capacitive Efficiency Ripple Voltage Load (typ.) @No Load Current Protection mA(typ.) 90 90 95 105 115 65 65 55 55 60 65 75 45 45 mA (typ.) VDC 3.9 6.2 15 18 30 ±15 ±18 3.9 6.2 15 18 30 ±15 ±18 30 20 @Max. Load μF 21000 13600 2400 1500 600 1200# 750# 21000 13600 2400 1500 600 1200# 750# % 89 90 89 89 89 88 88 89 90 90 90 89 88 88 # For each output Input Specifications Parameter Model 24V Input Models 48V Input Models 24V Input Models 48V Input Models 24V Input Models 48V Input Models Input Surge Voltage (100ms. max.) Start-Up Threshold Voltage Under Voltage Lockout Input Polarity Protection Start Up Time Power Up Remote On/Off Internal Filter Type Short Circuit Current E-mail:[email protected] 2012/04/20 REV:4 Min. Typ. Max. Unit -0.7 --50 -0.7 --100 ----9 VDC ----18 --8.3 ----16.5 --None ----30 ms Nominal Vin and Constant Resistive Load ----30 ms All Models LC Filter (for EN55022,Class A compliance see page 7) --- (Hiccup Mode 1.5 Hz typ.) Tel:886-6-2923150 Page 1 of 8 ® MKWI40 SERIES DC/DC CONVERTER 40W, Highest Power Density Output Specifications Parameter Output Voltage Setting Accuracy Output Voltage Balance Line Regulation Conditions Min. Typ. Max. Unit At 50% Load and Nominal Vin ----±1.0 %Vnom. Dual Output, Balanced Loads ----±2.0 % Vin=Min. to Max. ----±0.5 % Single Output ----±0.5 % Min. Load to Full Load Dual Output ----±1.0 % Asymmetrical Load 25%/100% Full Load ----±5.0 % No Minimum Load Requirement for Single Output Models, for dual Output Models see Table 3.3V & 5V Output Models --100 --mV P-P 12V, 15V & 24V Models --150 --mV P-P Dual Output Models --150 --mV P-P 25% Load Step Change --250 --μsec ----±0.02 %/℃ Current Limitation at 150% typ. of Iout max., Hiccup Hiccup Automatic Recovery For Shutdown Voltage see Model Selection Guide Load Regulation Load Cross Regulation (Dual Output) Minimum Load Ripple & Noise (20MHz) Ripple & Noise (20MHz) Ripple & Noise (20MHz) Transient Recovery Time Temperature Coefficient Over Load Protection Short Circuit Protection Over Voltage Protection General Specifications Parameter I/O Isolation Voltage (rated) I/O Isolation Resistance I/O Isolation Capacitance Switching Frequency MTBF(calculated) Safety Approvals(pending) Input Fuse Conditions 60 Seconds 500 VDC 100KHz, 1V Min. Typ. Max. 1500 ----1000 --------1500 --320 --MIL-HDBK-217F@25℃, Ground Benign 328,000 ----UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-scheme) 24V Input Models 8000mA Slow-Blow Type Unit VDC MΩ pF KHz Hours 48V Input Models 4000mA Slow-Blow Type 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. Typ. 4.7V ~ 12V or Open Circuit 0V ~ 1.2V or Short Circuit --0.5 ---0.5 Referenced to Negative Input --2.5 Max. Unit ----- mA mA --- mA Max. --- Unit % Output Voltage Trim Parameter Trim Up / Down Range Conditions % of nominal output voltage Min. ±10 Typ. --- Environmental Specifications Parameter Model MKWI40-XXS033 MKWI40-24S05, MKWI40-48S05 MKWI40-48S12, MKWI40-48S15 MKWI40-24S12, MKWI40-24S15 MKWI40-24D12, MKWI40-24D15 MKWI40-48D12, MKWI40-48D15 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 Operating Ambient Temperature Range (Natural Convection, see Derating) Thermal Impedance Case Temperature Thermal Protection Storage Temperature Range Humidity (non condensing) RFI Lead Temperature (1.5mm from case for 10Sec.) E-mail:[email protected] 2012/04/20 REV:4 Shutdown Temperature Tel:886-6-2923150 Page 2 of 8 Min. -40 Max. without Heatsink with Heatsink 66 73 51 61 45 57 40 52 ----------------+105 110℃ typ. -50 +125 --95 Six-Sided Shielded, Metal Case --260 12.0 10.0 9.0 5.4 8.0 4.5 6.0 3.0 --- Unit ℃ ℃/W ℃/W ℃/W ℃/W ℃/W ℃/W ℃/W ℃/W ℃ ℃ % rel. H ℃ ® MKWI40 SERIES DC/DC CONVERTER 40W, Highest Power Density Power Derating Curve 100 Natural convection Output Power (%) 80 100LFM 60 200LFM 400LFM 40 20 0 ~ -40 0 20 40 60 80 100 110 Ambient Temperature C MKWI40-24S033,MKWI40-48S033 Derating Curve without Heatsink MKWI40-24S033,MKWI40-48S033 Derating Curve with Heatsink 100 Natural convection Output Power (%) Output Power (%) 80 100LFM 60 200LFM 400LFM 40 20 0 ~ -40 0 20 40 60 80 100 110 Ambient Temperature C MKWI40-24S05,MKWI40-48S05, MKWI40-48S12, MKWI40-48S15 MKWI40-24S05,MKWI40-48S05, MKWI40-48S12, MKWI40-48S15 Derating Curve without Heatsink Derating Curve with Heatsink 100 100 Natural convection 80 Output Power (%) Output Power (%) 80 100LFM 60 200LFM 400LFM 40 20 Natural convection 100LFM 60 200LFM 400LFM 40 20 0 0 ~ -40 0 20 40 60 80 100 110 ~ -40 0 20 MKWI40-24S12,MKWI40-24S15 Derating Curve without Heatsink 40 60 80 100 110 Ambient Temperature C Ambient Temperature C MKWI40-24S12,MKWI40-24S15 Derating Curve with Heatsink 100 Natural convection Output Power (%) Output Power (%) 80 100LFM 60 200LFM 400LFM 40 20 0 ~ -40 0 20 40 60 80 100 110 Ambient Temperature C MKWI40-24D12,MKWI40-24D15, MKWI40-48D12, MKWI40-48D15 MKWI40-24D12,MKWI40-24D15, MKWI40-48D12, MKWI40-48D15 Derating Curve without Heatsink Derating Curve with Heatsink E-mail:[email protected] 2012/04/20 REV:4 Tel:886-6-2923150 Page 3 of 8 ® MKWI40 SERIES DC/DC CONVERTER 40W, Highest Power Density 100 100 90 90 Efficiency(%) Efficiency(%) Efficiency Curve @25℃ 80 70 60 80 70 60 9V 50 9V 50 24V 36V 40 10 20 30 40 50 60 70 80 90 24V 36V 40 100 10 20 30 % of Full Load 50 60 70 80 90 100 % of Full Load MKWI40-24S033 Efficiency vs Load Current MKWI40-24S05 Efficiency vs Load Current 100 100 90 90 Efficiency(%) Efficiency(%) 40 80 70 60 80 70 60 9V 50 9V 50 24V 36V 40 10 20 30 40 50 60 70 80 90 24V 36V 40 100 10 20 30 % of Full Load 50 60 70 80 90 100 % of Full Load MKWI40-24S12 Efficiency vs Load Current MKWI40-24S15 Efficiency vs Load Current 100 100 90 90 Efficiency(%) Efficiency(%) 40 80 70 60 80 70 60 9V 50 24V 36V 40 10 20 30 40 50 60 70 80 90 100 % of Full Load MKWI40-24D12 Efficiency vs Load Current E-mail:[email protected] 2012/04/20 REV:4 Tel:886-6-2923150 Page 4 of 8 9V 50 24V 36V 40 10 20 30 40 50 60 70 80 90 100 % of Full Load MKWI40-24D15 Efficiency vs Load Current ® MKWI40 SERIES DC/DC CONVERTER 40W, Highest Power Density 100 100 90 90 Efficiency(%) Efficiency(%) Efficiency Curve @25℃ 80 70 60 80 70 60 18V 18V 50 50 48V 75V 40 10 20 30 40 50 60 70 80 90 48V 75V 40 10 100 20 30 50 60 70 80 90 100 % of Full Load % of Full Load MKWI40-48S033 Efficiency vs Load Current MKWI40-48S05 Efficiency vs Load Current 100 100 90 90 Efficiency(%) Efficiency(%) 40 80 70 60 80 70 60 18V 50 18V 50 48V 75V 40 10 20 30 40 50 60 70 80 90 48V 75V 40 100 10 20 30 % of Full Load 50 60 70 80 90 100 % of Full Load MKWI40-48S12 Efficiency vs Load Current MKWI40-48S15 Efficiency vs Load Current 100 100 90 90 Efficiency(%) Efficiency(%) 40 80 70 60 80 70 60 18V 50 48V 75V 40 10 20 30 40 50 60 70 80 90 100 % of Full Load MKWI40-48D12 Efficiency vs Load Current E-mail:[email protected] 2012/04/20 REV:4 Tel:886-6-2923150 Page 5 of 8 18V 50 48V 75V 40 10 20 30 40 50 60 70 80 90 100 % of Full Load MKWI40-48D15 Efficiency vs Load Current ® MKWI40 SERIES DC/DC CONVERTER 40W, Highest Power Density 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 bandwidth is 20 MHz, measured with a 1μF M/C and a 10μF T/C. 4 All DC/DC converters should be externally fused at the front end for protection. 5 Other input and output voltage may be available, please contact factory. 6 To order the converter with heatsink, please add a suffix –HS (e.g.MKWI40-12S05-HS) to order code. 7 To order the converter without Remote On/Off function, please add a suffix -N (e.g.MKWI40-12S05-N) to order code. 8 That “natural convection” is about 20LFM but is not equal to still air (0 LFM). 9 Specifications subject to change without notice. Package Specifications Mechanical Dimensions Pin Connections 1 1.00 [ 0.04] 2 3.6 [0.14] Bottom View 50.8 [2.00] 3 5.08 [0.20] 45.72 [1.80] 10.16 [0.40] 1.1 [0.04] 5 6 Pin Single Output Dual Output 1 +Vin +Vin 2 -Vin -Vin 3 Remote On/Off Remote On/Off 4 +Vout +Vout 5 -Vout Common 6 Trim -Vout ►All 4 dimensions in mm (inches) ►Tolerance: X.X±0.25 10.16 [0.40] 10.16 [0.40] 2.54 [0.10] 5.5 [0.22] 25.4 [1.00] 11.0 [0.43] (X.XX±0.01) X.XX±0.13 ( X.XXX±0.005) ► Pin diameter 1.0 ±0.05 (0.04±0.002) Physical Characteristics Case Size : 50.8x25.4x11mm (2.0x1.0x0.43 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 Underplate Weight : 30g Heatsink (Option –HS) 23.0 [0.91] Physical Characteristics 18.0 [0.71]Max Heatsink Material : Aluminum Finish : Black Anodized Coating Weight : 9g ►The advantages of adding a heatsink are: 1. To help heat dissipation and increase the stability 31.0 [1.22]Max Heat-sink and reliability of DC/DC converters at high Thermal pad operating temperature atmosphere. Clamp Converter 2. To upgrade the operating temperature of DC/DC converters, please refer to Derating Curve. E-mail:[email protected] 2012/04/20 REV:4 Tel:886-6-2923150 Page 6 of 8 ® MKWI40 SERIES DC/DC CONVERTER 40W, Highest Power Density EMI-Filter to meet EN 55022, class A; FCC part 15 ,level A Conducted and radiated emissions EN55022 Class A Part No. C1 C2&C3 MKWI40-24SXX 4.7μF/50V 1812 MLCC 1000pF/2KV 1808 MLCC MKWI40-48SXX 2.2μF/100V 1812 MLCC 1000pF/2KV 1808 MLCC Part No. C1 C2&C4 MKWI40-24DXX 4.7μF/50V 1812 MLCC 1000pF/2KV 1808 MLCC MKWI40-48DXX 2.2μF/100V 1812 MLCC 1000pF/2KV 1808 MLCC External Output Trimming Output can be externally trimmed by using the method shown below MKWI40-XXS033 Trim Table Trim down 1 2 Vout= Vox0.99 Vox0.98 Rd= 63.59 30.28 3 Vox0.97 18.19 4 Vox0.96 11.95 5 Vox0.95 8.13 6 Vox0.94 5.56 7 Vox0.93 3.70 8 Vox0.92 2.31 9 Vox0.91 1.21 10 Vox0.90 0.34 % Volts KOhms Trim up 1 Vout= Vox1.01 Ru= 70.50 MKWI40-XXS05 Trim Table Trim down 1 Vout= Vox0.99 Rd= 45.53 2 Vox1.02 29.28 3 Vox1.03 16.87 4 Vox1.04 10.90 5 Vox1.05 7.38 6 Vox1.06 5.06 7 Vox1.07 3.42 8 Vox1.08 2.20 9 Vox1.09 1.25 10 Vox1.10 0.49 % Volts KOhms 2 Vox0.98 20.61 3 Vox0.97 12.31 4 Vox0.96 8.15 5 Vox0.95 5.66 6 Vox0.94 4.00 7 Vox0.93 2.81 8 Vox0.92 1.92 9 Vox0.91 1.23 10 Vox0.90 0.68 % Volts KOhms Trim up 1 Vout= Vox1.01 Ru= 36.57 MKWI40-XXS12 Trim Table Trim down 1 Vout= Vox0.99 Rd= 394.50 2 Vox1.02 16.58 3 Vox1.03 9.92 4 Vox1.04 6.59 5 Vox1.05 4.59 6 Vox1.06 3.25 7 Vox1.07 2.30 8 Vox1.08 1.59 9 Vox1.09 1.03 10 Vox1.10 0.59 % Volts KOhms 2 Vox0.98 179.74 3 Vox0.97 106.08 4 Vox0.96 68.86 5 Vox0.95 46.39 6 Vox0.94 31.36 7 Vox0.93 20.60 8 Vox0.92 12.51 9 Vox0.91 6.21 10 Vox0.90 1.17 % Volts KOhms Trim up 1 Vout= Vox1.01 Ru= 368.92 MKWI40-XXS15 Trim Table Trim down 1 Vout= Vox0.99 Rd= 572.67 2 Vox1.02 161.92 3 Vox1.03 94.97 4 Vox1.04 61.86 5 Vox1.05 42.12 6 Vox1.06 29.00 7 Vox1.07 19.66 8 Vox1.08 12.66 9 Vox1.09 7.23 10 Vox1.10 2.89 % Volts KOhms 2 Vox0.98 248.63 3 Vox0.97 145.60 4 Vox0.96 94.97 5 Vox0.95 64.87 6 Vox0.94 44.92 7 Vox0.93 30.72 8 Vox0.92 20.10 9 Vox0.91 11.86 10 Vox0.90 5.28 % Volts KOhms 2 Vox1.02 182.12 3 Vox1.03 108.73 4 Vox1.04 71.43 5 Vox1.05 48.85 6 Vox1.06 33.71 7 Vox1.07 22.86 8 Vox1.08 14.69 9 Vox1.09 8.33 10 Vox1.10 3.23 % Volts KOhms Trim up Vout= Ru= 1 Vox1.01 392.98 E-mail:[email protected] 2012/04/20 REV:4 Tel:886-6-2923150 Page 7 of 8 ® MKWI40 SERIES DC/DC CONVERTER 40W, 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 4.7V to 12V. The maximum sink current at the on/off terminal (Pin 3) during a logic low is -100μA. The maximum allowable leakage current of a switch connected to the on/off terminal (Pin 3) at logic high (2.5V to 100V) is 5μA. 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 MKWI40 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. 2012/04/20 REV:4 Page 8 of 8