MKWI50_15 MINMAX | Alldatasheet
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DC/DC CONVERTER 50W, Highest Power Density E-mail:sales@minmax.com.tw Tel:886 -6-2923150 2016/06/17 REV:6 Page 1 of 10
FEATURES
►Smallest Encapsulated 50W Converter ►Ultra-compact 2" X 1" Package ►Ultra-wide 4:1 Input Voltage Range ►Fully Regulated Output Voltage ►Excellent Efficiency up to 92% ►I/O Isolation 1500 VDC ►Operating Ambient Temp. Range -40℃ to +80℃ ►No Min. Load Requirement ►Overload/Voltage/Temp. and Short Circuit Protection ►Remote On/Off Control, Output Voltage Trim ►Shielded Metal Case with Insulated Baseplate ►UL/cUL/IEC/EN 60950-1 Safety Approval PRODUCT OVERVIEW The MINMAX MKWI50 series is the latest generation of high performance dc-dc converter modules setting a new standard concerning power density. The product offers fully 50W 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. A very high efficiency up to 92% which allows an operating temperature range of -40°C to +80°C is achieved by advanced circuit topology . Further features include remote On/Off, trimmable output voltage, under-voltage shutdown 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 Number Input Voltage (Range) Output Voltage Output Current Input Current Reflected Ripple Current Over Voltage Protection Max. capacitive Load Efficiency (typ.) Max. @Max. Load @No Load @Max. Load VDC VDC mA mA(typ.) mA(typ.) mA(typ.) VDC μF % MKWI50-24S033 ( 9 ~ 36 ) 3.3 10000 1528 80 3.9 26000 90 MKWI50-24S05 5 10000 2290 60 6.2 17000 91 MKWI50-24S12 12 4170 2267 80 15 3000 92 MKWI50-24S15 15 3330 2263 80 18 2000 92 MKWI50-24S24 24 2080 2286 80 30 750 91 MKWI50-48S033 ( 18 ~ 75 ) 3.3 10000 764 40 3.9 26000 90 MKWI50-48S05 5 10000 1145 30 6.2 17000 91 MKWI50-48S12 12 4170 1134 60 15 3000 92 MKWI50-48S15 15 3330 1134 60 18 2000 92 MKWI50-48S24 24 2080 1143 50 30 750 91 Input Specifications Parameter Conditions / Model Min. Typ. Max. Unit Input Surge Voltage (100ms. max) 24V Input Models -0.7 --- 50 VDC 48V Input Models -0.7 --- 100 Start-Up Threshold Voltage 24V Input Models --- --- 9 48V Input Models --- --- 18 Under Voltage Lockout 24V Input Models --- 7.5 --- 48V Input Models --- 16 --- Input Polarity Protection None Start Up Time Power Up Nominal Vin and Constant Resistive Load --- --- 30 ms Remote On/Off --- --- 30 ms Input Filter All Models Internal LC Type
DC/DC CONVERTER 50W, Highest Power Density E-mail:sales@minmax.com.tw Tel:886 -6-2923150 2016/06/17 REV:6 Page 2 of 10 Remote On/Off Control Parameter Conditions Min. Typ. Max. Unit 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 Output Specifications Parameter Conditions / Model Min. Typ. Max. Unit Output Voltage Setting Accuracy --- --- ±1.0 %Vnom. Line Regulation Vin=Min. to Max. @Full Load --- --- ±0.5 % Load Regulation Min. Load to Full Load --- --- ±0.5 % Minimum Load No minimum Load Requirement Ripple & Noise 0-20 MHz Bandwidth 3.3V & 5V Models(3) --- --- 100 mV P-P 12V, 15V & 24V Models(3) --- --- 150 mV P-P Transient Recovery Time 25% Load Step Change(2) --- 250 --- μsec Transient Response Deviation --- ±3 ±5 % Temperature Coefficient --- --- ±0.02 %/℃ Trim Up / Down Range (See Page 8 ) % of nominal output voltage (24Vo Models) --- --- +20 / -10 % % of nominal output voltage (Other Models) --- --- ±10 % Over Load Protection Hiccup --- 150 --- % Short Circuit Protection Hiccup Mode 0.3 Hz typ., Automatic Recovery General Specifications Parameter Conditions Min. Typ. Max. Unit I/O Isolation Voltage 60 Seconds 1500 --- --- VDC
1 Seconds 1800 --- --- VDC
I/O Isolation Resistance 500 VDC 1000 --- --- MΩ I/O Isolation Capacitance 100KHz, 1V --- --- 2200 pF Switching Frequency --- 285 --- KHz MTBF(calculated) MIL-HDBK-217F@25℃, Ground Benign 230,900 Hours Safety Approvals UL/cUL 60950-1 recognition (CSA certificate), IEC/EN 60950-1 (CB-report) Environmental Specifications Parameter Conditions / Model Min. Max. Unit without Heatsink with Heatsink Operating Ambient Temperature Range Natural Convection (8) Nominal Vin, Load 100% Inom. (for Power Derating see relative Derating Curves) MKWI50-24S033, MKWI50-48S033 -40 61 69 MKWI50-24S12, MKWI50-24S15 53 62 MKWI50-48S12, MKWI50-48S15 MKWI50-24S05, MKWI50-24S24 46 57 MKWI50-48S05, MKWI50-48S24 Thermal Impedance Natural Convection without Heatsink 12.1 --- ℃/W Natural Convection with Heatsink 9.8 --- ℃/W 100LFM Convection without Heatsink 9.2 --- ℃/W 100LFM Convection with Heatsink 5.4 --- ℃/W 200LFM Convection without Heatsink 7.8 --- ℃/W 200LFM Convection with Heatsink 4.5 --- ℃/W 400LFM Convection without Heatsink 5.2 --- ℃/W 400LFM Convection with Heatsink 3.0 --- ℃/W Case Temperature --- +105 ℃ Thermal Protection Shutdown Temperature 110℃ typ. Storage Temperature Range -50 +125 ℃ Humidity (non condensing) --- 95 % rel. H Cooling Natural convection RFI Six-Sided Shielded, Metal Case Lead Temperature (1.5mm from case for 10Sec.) --- 260 ℃
DC/DC CONVERTER 50W, Highest Power Density E-mail:sales@minmax.com.tw Tel:886 -6-2923150 2016/06/17 REV:6 Page 3 of 10 EMC Specifications Parameter Standards & Level Performance EMI Conduction EN55022, FCC part 15 Class A EMS EN55024 ESD EN61000-4-2 air ± 8kV , Contact ± 6kV A Radiated immunity EN61000-4-3 10V/m A Fast transient (7) EN61000-4-4 ±2kV A Surge (7) EN61000-4-5 ±1kV A Conducted immunity EN61000-4-6 10Vrms A External Filter meets Conducted EMI EN55022 class A; FCC part 15 level A Model C1 C2 L1 MKWI50-24SXX 10μF/50V 1210 X7S MLCC 1000pF/2KV 1206 MLCC 1.5μH MKWI50-48SXX 3.3μF/100V 1210 X7S MLCC 1000pF/2KV 1206 MLCC 6.8μH
DC/DC CONVERTER 50W, Highest Power Density E-mail:sales@minmax.com.tw Tel:886 -6-2923150 2016/06/17 REV:6 Page 4 of 10 Power Derating Curve Ambient Temperature Output Power (%) 100 -40 0 20 60 100 1108040 400LFM 200LFM 100LFM Natural Convection 20LFM C Ambient Temperature Output Power (%) 100 -40 0 20 60 100 1108040 400LFM 200LFM 100LFM Natural Convection 20LFM C MKWI50-24S033,MKWI50-48S033 Derating Curve without Heatsink MKWI50-24S033,MKWI50-48S033 Derating Curve with Heatsink Ambient Temperature Output Power (%) 100 -40 0 20 60 100 1108040 400LFM 200LFM 100LFM Natural Convection 20LFM C Ambient Temperature Output Power (%) 100 -40 0 20 60 100 1108040 400LFM 200LFM 100LFM Natural Convection 20LFM C MKWI50-24S12,MKWI50-24S15, MKWI50-48S12, MKWI50-48S15 Derating Curve without Heatsink MKWI50-24S12,MKWI50-24S15, MKWI50-48S12, MKWI50-48S15 Derating Curve with Heatsink Ambient Temperature Output Power (%) 100 -40 0 20 60 100 1108040 400LFM 200LFM 100LFM Natural Convection 20LFM C Ambient Temperature Output Power (%) 100 -40 0 20 60 100 1108040 400LFM 200LFM 100LFM Natural Convection 20LFM C MKWI50-24S05, MKWI50-24S24, MKWI50-48S05, MKWI50-48S24 Derating Curve without Heatsink MKWI50-24S05, MKWI50-24S24, MKWI50-48S05, MKWI50-48S24 Derating Curve with Heatsink
DC/DC CONVERTER 50W, Highest Power Density E-mail:sales@minmax.com.tw Tel:886 -6-2923150 2016/06/17 REV:6 Page 5 of 10 Efficiency Curve @25℃ MKWI50-24S033 Efficiency vs Load Current MKWI50-24S05 Efficiency vs Load Current MKWI50-24S12 Efficiency vs Load Current MKWI50-24S15 Efficiency vs Load Current MKWI50-24S24 Efficiency vs Load Current MKWI50-48S033 Efficiency vs Load Current MKWI50-48S05 Efficiency vs Load Current MKWI50-48S12 Efficiency vs Load Current MKWI50-48S15 Efficiency vs Load Current MKWI50-48S24 Efficiency vs Load Current 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 24V 36V 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 24V 36V 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 24V 36V 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 24V 36V 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 24V 36V 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 18V 48V 75V 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 18V 48V 75V 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 18V 48V 75V 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 18V 48V 75V 100 10 20 30 40 50 60 70 80 90 100 % of Full Load Efficiency(%) 18V 48V 75V
DC/DC CONVERTER 50W, Highest Power Density E-mail:sales@minmax.com.tw Tel:886 -6-2923150 2016/06/17 REV:6 Page 6 of 10 Notes 1 Specifications typical at Ta=+25℃, resistive load, nominal input voltage, 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 Capatitor. 4 We recommend to protect the converter by a slow blow fuse in the input supply line. 5 Other input and output voltage may be available, please contact factory. 6 To meet EN61000-4-4 & EN61000-4-5 an external capacitor across the input pins is required .Suggested capacitor : 220μF/100V. 7 Do not exceed maximum power specification when adjusting output voltage. 8 That “natural convection” is about 20LFM but is not equal to still air (0 LFM). 9 Specifications are subject to change without notice. Package Specifications Mechanical Dimensions Pin Connections Pin Function 1 +Vin 2 -Vin
3 Remote On/Off
6 Trim
►All dimensions in mm (inches) ►Tolerance : X.X±0.25 (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 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 Potting Material : Epoxy (UL94-V0) Weight : 34g 10.16 25.4 [1.00] [0.40] 10.16 [0.40] 2.54 [0.10] 10.16 [0.40] 5.08 [0.20] Bottom View 45.72 [1.80] 50.8 [2.00] 11.0 [0.43] 5.5 [0.22] 1.00 [ 0.04] 6 5 4 123 3.6 [0.14] 1.85 5.08 [0.20] [0.07]
DC/DC CONVERTER 50W, Highest Power Density E-mail:sales@minmax.com.tw Tel:886 -6-2923150 2016/06/17 REV:6 Page 7 of 10 Heatsink (Option –HS) Physical Characteristics Heatsink Material : Aluminum Finish : Black Anodized Coating Weight : 9g ►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. 31.0 [1.22]Max Heat-sink Thermal pad Clamp Converter 31.1 [1.22] 18.0 [0.71]Max
DC/DC CONVERTER 50W, Highest Power Density E-mail:sales@minmax.com.tw Tel:886 -6-2923150 2016/06/17 REV:6 Page 8 of 10 External Output Trimming Output can be externally trimmed by using the method shown below MKWI50-XXS033 Trim Table Trim down 1 2 3 4 5 6 7 8 9 10 % Trim up 1 2 3 4 5 6 7 8 9 10 % MKWI50-XXS05 Trim Table Trim down 1 2 3 4 5 6 7 8 9 10 % Trim up 1 2 3 4 5 6 7 8 9 10 % MKWI50-XXS12 Trim Table Trim down 1 2 3 4 5 6 7 8 9 10 % Trim up 1 2 3 4 5 6 7 8 9 10 % MKWI50-XXS15 Trim Table Trim down 1 2 3 4 5 6 7 8 9 10 % Trim up 1 2 3 4 5 6 7 8 9 10 % MKWI50-XXS24 Trim Table Trim down 1 2 3 4 5 6 7 8 9 10 % Trim up 2 4 6 8 10 12 14 16 18 20 % MKWI50 Module Bottom View MKWI50 Module Bottom View
DC/DC CONVERTER 50W, Highest Power Density E-mail:sales@minmax.com.tw Tel:886 -6-2923150 2016/06/17 REV:6 Page 9 of 10 Order Code Table Standard With heatsink MKWI50-24S033 MKWI50-24S033-HS MKWI50-24S05 MKWI50-24S05-HS MKWI50-24S12 MKWI50-24S12-HS MKWI50-24S15 MKWI50-24S15-HS MKWI50-24S24 MKWI50-24S24-HS MKWI50-48S033 MKWI50-48S033-HS MKWI50-48S05 MKWI50-48S05-HS MKWI50-48S12 MKWI50-48S12-HS MKWI50-48S15 MKWI50-48S15-HS MKWI50-48S24 MKWI50-48S24-HS
DC/DC CONVERTER 50W, Highest Power Density 18, Sin Sin Road, An-Ping Industrial District, Tainan 702, Taiwan Tel: 886-6-2923150 Fax: 886 -6-2923149 E -mail: sales@minmax.com.tw 2016/06/17 REV:6 Page 10 of 10 Minmax Technology Co., Ltd. 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. 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. 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 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 contro l 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. +Out -Out +Vin -Vin DC / DC Converter LoadDC Power Source Cin 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 ripp le, it is recommended to use 4.7μF capacitors at the output. +Out -Out +Vin -Vin Load DC Power Source Cout Single Output DC / DC Converter Maximum Capacitive Load The MKWI50 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. +Out -Out +Vin -Vin DC / DC Converter Load Battery + Lin+ Cin To Oscilloscope Current Probe +Out -Out +Vin -Vin Single Output DC / DC Converter Resistive LoadScope Copper Strip Cout Copper Strip DUT Position of air velocity probe and thermocouple 50mm / 2in Air Flow 15mm / 0.6in