® MKW5000 SERIES DC/DC CONVERTER 30W FEATURES ►2”x 1”x 0.4” Metal Package ►Wide 2:1 Input Range ►Very High Efficiency up to 88% ►Adjustable Output Voltage ►Operating Temp. Range –40°C to +85°C ►Short Circuit Protection ►I/O-isolation 1500VDC ►Remote on/off (Option) ►Heatsink (Option) ►Cost optimized Design ►CSA/UL/IEC/EN 60950-1 Safety Approval ►3 Years Product Warranty PRODUCT OVERVIEW The MINMAX MKW5000 series is a range of isolated 30W 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 +85°C. These DC/DC converters offer an economical solution for many cost critical applications in battery-powered equipment and instrumentation. Model Selection Guide Model Input Output Output Number Voltage Voltage Current (Range) VDC MKW5030 MKW5031 MKW5032 MKW5039 MKW5033 MKW5034 MKW5040 MKW5041 MKW5042 MKW5049 MKW5043 MKW5044 24 (18 ~ 36) 48 (36 ~ 75) VDC 2.5 3.3 5 5.1 12 15 2.5 3.3 5 5.1 12 15 Input Current Reflected Max. capacitive Ripple Load Max. Min. @Max. Load @No Load Current mA 6000 6000 5000 5000 2500 2000 6000 6000 5000 5000 2500 2000 mA 0 0 0 0 166 133 0 0 0 0 166 133 mA(typ.) 744 959 1185 1207 1420 1420 372 480 604 604 710 710 mA(typ.) mA(typ.) 70 100 (typ.) @Max. Load μF 6800 680 6800 50 Efficiency 50 680 % 84 86 88 88 88 88 84 86 88 88 88 88 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 (1 sec. max.) Start-Up Threshold Voltage Under Voltage Shutdown Reverse Polarity Input Current Short Circuit Input Power Internal Power Dissipation Conducted EMI (with suffix A only) E-mail:[email protected] 2012/08/08 REV:4 All Models Tel:886-6-2923150 Page 1 of 5 Min. -0.7 -0.7 Typ. Max. Unit 50 --100 --17 17.8 18 VDC 34 35 36 16 16.5 17 32 33 34 ----2 A ----4500 mW ----4500 mW Compliance to EN 55022,class A and FCC part 15,class A ® MKW5000 SERIES DC/DC CONVERTER 30W Output Specifications Parameter Conditions Output Voltage Setting Accuracy Line Regulation Load Regulation (2.5/3.3/5/5.1Vout) Load Regulation (12/15Vout) Ripple & Noise (20MHz) Transient Recovery Time Transient Response Deviation Temperature Coefficient Over Load Protection Short Circuit Protection At 50% Load and Nominal Vin Vin=Min. to Max. Io=0% to 100% Io=10% to 100% 25% Load Step Change Foldback Min. ----------------110 Continuous Typ. --±0.1 ±0.5 ±0.5 75 200 ±2 ±0.01 155 Max. ±1.0 ±0.3 ±1.0 ±1.0 100 500 ±4 ±0.02 --- Min. Typ. Max. Unit %Vnom. % % % mV P-P μsec % %/℃ % General Specifications Parameter Conditions I/O Isolation Voltage (rated) I/O Isolation Resistance I/O Isolation Capacitance Switching Frequency MTBF (calculated) Safety Approvals Unit 60 Seconds 500 VDC 100KHz, 1V 1500 ----1000 ------1200 1500 280 350 400 MIL-HDBK-217F@25℃, Ground Benign 600,000 ----UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-scheme) VDC MΩ pF KHz Hours Input Fuse 24V Input Models 3000mA Slow-Blow Type 48V Input Models 1500mA Slow-Blow Type Remote On/Off Control Parameter Conditions Converter On Converter Off Control Input Current (on) Control Input Current (off) Control Common Standby Input Current Vctrl = 5.0V Vctrl = 0V Nominal Vin Min. Typ. 2.5 to 100VDC or Open Circuit -1V ~ 1V or Short Circuit --------Referenced to Negative Input --2 Max. Unit 5 -100 μA μA 5 mA Environmental Specifications Parameter Conditions Min. Max. Unit Operating Ambient Temperature Range (See Power Derating Curve) Case Temperature Storage Temperature Range Humidity (non condensing) Cooling Lead Temperature (1.5mm from case for 10Sec.) Natural Convection -40 +85 ℃ +105 +125 95 ℃ ℃ % rel. H 260 ℃ ---50 --Free-Air convection --- Power Derating Curve 100 Natural Convection 20LFM 80 100LFM 60 200LFM 400LFM 40 20 0 ~ -40 30 40 50 60 70 80 Ambient Temperature C Derating Curve without Heatsink E-mail:[email protected] 2012/08/08 REV:4 Tel:886-6-2923150 Page 2 of 5 Derating Curve with Heatsink 90 100 110 ® MKW5000 SERIES DC/DC CONVERTER 30W Notes 1 2 3 4 5 6 7 8 9 10 11 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 with Remote On/Off function, please add suffix RC (e.g. MKW5030-RC) to order code. To order the converter with EN55022 Class A , please add suffix A (e.g. MKW5030A) to order code. To order the converter with heatsink, please add suffix H (e.g. MKW5030H) to order code. That “natural convection” is about 20LFM but is not equal to still air (0 LFM). Specifications are subject to change without notice. Package Specifications Pin Connections Mechanical Dimensions [0.20] 1 1.00 [ 0.04] 2 3.6 [0.14] Bottom View 50.8 [2.00] 3 Pin 1 5.08 45.72 [1.80] 10.16 [0.40] Function +Vin 2 -Vin 3 Remote On/Off 4 +Vout 5 -Vout 6 Trim 1.1 [0.04] 5 6 10.16 [0.40] 4 10.16 [0.40] ►All 2.54 [0.10] 5.1 [0.20] 25.4 [1.00] 10.2 [0.40] 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 Size : 50.8x25.4x10.2mm (2.0x1.0x0.40 inches) Case Material : Aluminum Anodizing Treatment in Black Base Material : FR4 PCB (flammability to UL 94V-0 rated) Pin Material : Copper Alloy with Gold Plate Over Nickel Subplate Weight : 32g Heatsink (Option –H) 31.1[1.22] Physical Characteristics Heatsink Material : Aluminum Finish : Black Anodized Coating Weight : 9g 17.2[0.68]Max 31.0[1.22]Max ►The Heat-sink Thermal pad Clamp Converter E-mail:[email protected] 2012/08/08 REV:4 Tel:886-6-2923150 Page 3 of 5 advantages of adding a 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. ® MKW5000 SERIES DC/DC CONVERTER 30W 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 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 Scope Resistive Load Copper Strip +Vin +Out Copper Strip Dual Output DC / DC Converter Com. Copper Strip -Vin -Out Cout Cout Scope Resistive Load 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 -1V to 1.0V. A logic high is 2.5V to 100V. 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. Output Voltage Trim Output voltage trim allows the user to increase or decrease the output voltage set point of a module. The output voltage can be adjusted by placing an external resistor (Radj) between the Trim and +Vout or -Vout terminals. By adjusting Radj, the output voltage can be change by ±10% of the nominal output voltage. +Vin +Out -Vin -Out Enable Trim Trim Down 10K Trim Up/Down Trim Up A 10K, 1 or 10 Turn trimpot is usually specified for continuous trimming. Trim pin may be safely left floating if it is not used. Connecting the external resistor (Radj-up) between the Trim and -Vout pins increases the output voltage to set the point as defined in the following equation: Radj - up = (33 × Vout ) - (30 × Vadj) Vadj - Vout Connecting the external resistor (Radj-down) between the Trim and +Vout pins decreases the output voltage set point as defined in the following equation: Radj - down = (36.667 × Vadj) - (33 × Vout ) Vout - Vadj Vout: Nominal Output Voltage Vadj: Adjusted Output Voltage Units: VDC/ KΩ 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. E-mail:[email protected] 2012/08/08 REV:4 Tel:886-6-2923150 Page 4 of 5 ® MKW5000 SERIES DC/DC CONVERTER 30W 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 33μF for the 12V input devices and 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 - +Out Dual Output DC / DC Com. Converter DC Power Source -Vin -Out Cout Load Load Cout Maximum Capacitive Load The MKW5000 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 680μF maximum capacitive load for 12V & 15V outputs and 6800μF capacitive load for the other 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 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. 2012/08/08 REV:4 Page 5 of 5