® MKW3000 SERIES DC/DC CONVERTER 20W FEATURES ►2”x 1”x 0.4” Metal Package ►Wide 2:1 Input Range ►Very high Efficiency up to 89% ►Operating Temp. Range –40°C to +80°C ►Short Circuit Protection ►I/O-isolation 1500VDC ►Input Filter meets EN 55022,class A and FCC, level A ►Remote On/Off (Option) ►3 Years Product Warranty PRODUCT OVERVIEW The MINMAX MKW30 series is a range of isolated 20W DC/DC converter modules featuring fully regulated output voltages and wide 2:1 input voltage ranges. The product comes in a 2”x 1”x 0.4” metal package with industry standard pinout. An excellent efficiency allows an operating temperature range of –40°C to +80°C. They feature an input filter to meet EN 55022,class A and optional remote On/Off input. Typical applications for these converters are battery operated equipment and instrumentation, distributed power systems, data communication and general industrial electronics. Model Selection Guide Model Number MKW3021 MKW3022 MKW3023 MKW3024 MKW3026 MKW3027 MKW3031 MKW3032 MKW3033 MKW3034 MKW3036 MKW3037 MKW3041 MKW3042 MKW3043 MKW3044 MKW3046 MKW3047 Input Voltage (Range) Output Voltage VDC VDC 3.3 5 12 15 ±12 ±15 3.3 5 12 15 ±12 ±15 3.3 5 12 15 ±12 ±15 12 (9 ~ 18) 24 (18 ~ 36) 48 (36 ~ 75) Output Current Input Current Max. Min. @Max. Load @No Load Reflected Ripple Current mA 4000 4000 1670 1340 ±835 ±670 4000 4000 1670 1340 ±835 ±670 4000 4000 1670 1340 ±835 ±670 mA 240 240 100 80 ±50 ±40 240 240 100 80 ±50 ±40 240 240 100 80 ±50 ±40 mA(typ.) 1358 1984 1898 1903 1898 1903 671 980 938 941 938 941 335 490 469 471 469 471 mA(typ.) mA(typ.) Max. capacitive Load µF @Max. Load 6800 30 50 680 270# 6800 17 30 680 270# 6800 10 20 680 270# # For each output E-mail:[email protected] 2012/08/28 REV:5 Tel:886-6-2923150 Page 1 of 5 Efficiency (typ.) % 81 84 88 88 88 88 82 85 89 89 89 89 82 85 89 89 89 89 ® MKW3000 SERIES DC/DC CONVERTER 20W Input Specifications Parameter Model 12V Input Models 24V Input Models 48V Input Models 12V Input Models 24V Input Models 48V Input Models 12V Input Models 24V Input Models 48V Input Models Input Surge Voltage (1 sec. max.) Start-Up Threshold Voltage Under Voltage Shutdown Reverse Polarity Input Current Short Circuit Input Power Internal Power Dissipation Conducted EMI All Models Min. Typ. Max. Unit -0.7 25 ---0.7 50 ---0.7 100 --8.6 8.8 9 VDC 17 17.5 18 34 35 36 8.1 8.3 8.5 16 16.5 17 32 33 34 ----2 A ----3500 mW ----4500 mW Compliance to EN 55022,class A and FCC part 15,class A Output Specifications Parameter Conditions Output Voltage Setting Accuracy Output Voltage Balance Line Regulation Load Regulation (3.3Vout) Load Regulation Ripple & Noise (20MHz) Transient Recovery Time Transient Response Deviation Temperature Coefficient Over Load Protection Short Circuit Protection At 50% Load and Nominal Vin Dual Output, Balanced Loads Vin=Min. to Max. Io=10% to 100% Io=10% to 100% 25% Load Step Change Foldback Min. ------------------110 Typ. --±0.5 ±0.1 ±0.5 ±0.1 55 150 ±2 ±0.01 TBD Max. ±1.0 ±2.0 ±0.3 ±1.0 ±0.5 80 300 ±4 ±0.02 160 Unit %Vnom. % % % % mV P-P µS % %/℃ % Continuous General Specifications Parameter I/O Isolation Voltage (rated) Conditions Min. Typ. Max. Unit 60 Seconds 1500 --- --- VDC I/O Isolation Resistance 500 VDC 1000 --- --- MΩ I/O Isolation Capacitance 100KHz, 1V --- 1200 1500 pF 290 330 360 KHz 800,000 --- --- Hours Switching Frequency MTBF (calculated) MIL-HDBK-217F@25℃, Ground Benign Safety Approvals UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-scheme) Input Fuse 12V Input Models 24V Input Models 48V Input Models 4000mA Slow-Blow Type 2000mA Slow-Blow Type 1000mA Slow-Blow Type Remote On/Off Control Parameter Conditions Converter On Min. Typ. Max. Unit 2.5V ~ 100V or Open Circuit Converter Off 0V ~ 1V or Short Circuit Control Input Current (on) Vctrl = 5.0V --- --- 5 µA Control Input Current (off) Vctrl = 0V --- --- -100 µA 2 5 mA Control Common Referenced to Negative Input Standby Input Current Nominal Vin E-mail:[email protected] 2012/08/28 REV:5 Tel:886-6-2923150 Page 2 of 5 --- ® MKW3000 SERIES DC/DC CONVERTER 20W Environmental Specifications Parameter Conditions Min. Max. Natural Convection -40 +80 ℃ Case Temperature --- +100 ℃ Storage Temperature Range -50 +125 ℃ Humidity (non condensing) --- 95 % rel. H 260 ℃ Operating Ambient Temperature Range (See Power Derating Curve) Cooling Unit Free-Air convection Lead Temperature (1.5mm from case for 10Sec.) --- Power Derating Curve Derating Curve without Heatsink Derating Curve with Heatsink Notes 1 2 3 4 5 6 7 8 9 10 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 bandwidth is 0-20MHz. These power converters require a minimum output loading to maintain specified regulation, operation under no-load conditions will not damage these modules; however they may not meet all specifications listed. All DC/DC converters should be externally fused at the front end for protection. Other input and output voltage may be available, please contact factory. To order the converter without Remote On/Off function, please add suffix N (e.g.MKW3021-N) to order code. To order the converter with heatsink, please add suffix H (e.g. MKW3021H) to order code. That “natural convection” is about 20LFM but is not equal to still air (0 LFM). Specifications subject to change without notice. E-mail:[email protected] 2012/08/28 REV:5 Tel:886-6-2923150 Page 3 of 5 ® MKW3000 SERIES DC/DC CONVERTER 20W Package Specifications Mechanical Dimensions 10.16 [0.40] 10.16 [0.40] 2 -Vin +Vout +Vout 4 No Pin Common 5 -Vout -Vout Remote On/Off NC: No Connection 6 15.2 [0.60] 1 -Vin 3 50.8 [2.00] 3.6 [0.14] Bottom View Dual Output +Vin 2 6 5 1.00 [ 0.04] 4 3 20.32 [0.80] 2.54 [0.10] Pin Connections Pin Single Output 1 +Vin 1.1 [0.04] ►All dimensions in mm 7.62 5.08 [0.30] [0.20] 7.62 [0.30] 6.0 [0.24] 10.2 [0.40] ►Tolerance: X.X±0.25 (inches) (X.XX±0.01) X.XX±0.13 ( X.XXX±0.005) 25.4 [1.00] ►Pin diameter — 1.0 ±0.05 (0.04±0.002) Physical Characteristics Case Size : 50.8x25.4x10.2mm (2.0x1.0x0.40 inches) Case Material Base Material : : Metal With Non-Conductive Baseplate FR4 PCB (flammability to UL 94V-0 rated) Pin Material : Copper Alloy with Gold Plate Over Nickel Subplate Weight : 32g Heatsink (Option –H) Physical Characteristics : Aluminum Finish : Black Anodized Coating Weight : 9g 31.1[1.22] Heatsink Material 17.2[0.68]Max ►The advantages of adding a 31.0[1.22]Max Heat-sink Thermal pad Clamp Converter E-mail:[email protected] 2012/08/28 REV:5 Tel:886-6-2923150 Page 4 of 5 heatsink are: 1. To help heat dissipation and increase the stability and reliability of DC/DC converters at high operating temperature atmosphere. 2. To upgrade the operating temperature of DC/DC converters, please refer to Derating Curve. ® MKW3000 SERIES DC/DC CONVERTER 20W Test Setup Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with a inductor Lin (4.7µH) and Cin (220uF, 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 Cout 1.0µF ceramic 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 Resistive Load Scope Copper Strip Copper Strip +Vin +Out Dual Output DC / DC Converter Com. -Vin -Out Scope Cout Resistive Load Copper Strip Cout 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 1.0V. A logic high is 2.5V to 100V. The maximum sink current at on/off terminal during a logic low is -100 µA. The maximum allowable leakage current of the switch at on/off terminal (2.5 to 100V) is 5µA. Overcurrent Protection To provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can endure current limiting for an unlimited duration. At the point of current-limit inception, the unit shifts from voltage control to current control. The unit operates normally once the output current is brought back into its specified range. 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 < 1.0Ω at 100 KHz) capacitor of a 22µF for the 12V input devices and a 6.8µF 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 MKW3000 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. For optimum performance we recommend 270µF maximum capacitive load for dual outputs, 680µF capacitive load for 12V & 15V outputs and 6800µF capacitive load for 3.3V & 5V outputs. 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 100℃. 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. 2012/08/28 REV:4 Page 5 of 5