MKW2546

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FEATURES

►2”x 1”x 0.4” Metal Package ►Wide 2:1 Input Range ►High Efficiency up to 86% ►Operating Temp. Range –40°C to +80°C ►Short Circuit Protection ►I/O-isolation 1500 VDC ►Input Filter to meet EN55022,class A (Option) ►Heatsink (Option) ►Cost optimized Design ►3 Years Product Warranty PRODUCT OVERVIEW The MKW2500 series is a range of isolated 15W 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 as option input filter to meet EN55022,class A and remote On/Off input. These DC/DC converters offer an economical solution for many cost critical applications in battery-powered equipment and instrumentation. Model Selection Guide Output Current Input Current Efficiency (typ.) Input Voltage (Range) Output Voltage Max. Min. @Max. Load @No Load Reflected Ripple Current Max. capacitive Load @Max. Load Model Number VDC VDC mA mA mA(typ.) mA(typ.) mA(typ.) uF % MKW2521 3.3 3000 300 1057 78 MKW2522 5 3000 300 1524 82 MKW2529 5.1 3000 300 1574 81 MKW2523 12 1250 125 1452 86 MKW2524 15 1000 100 1452 470 MKW2526 ±12 ±625 ±62.5 1452 86 MKW3267 (9 ~ 18) ±15 ±500 ±50 1452 30 50 220# 86 MKW2531 3.3 3000 300 528 78 MKW2532 5 3000 300 762 82 MKW2539 5.1 3000 300 787 81 MKW2533 12 1250 125 726 86 MKW2534 15 1000 100 726 470 MKW2536 ±12 ±625 ±62.5 726 86 MKW2537 (18 ~ 36) ±15 ±500 ±50 726 20 40 220# 86 MKW2541 3.3 3000 300 264 78 MKW2542 5 3000 300 381 82 MKW2549 5.1 3000 300 393 81 MKW2543 12 1250 125 363 86 MKW2544 15 1000 100 363 470 MKW2546 ±12 ±625 ±62.5 363 86 MKW2547 (36 ~ 75) ±15 ±500 ±50 363 10 30 220# 86 # For each output Total Power InTotal Power International, Inc Toll Free: 877-646-0900 www.total-power.com

Parameter Model Min. Typ. Max. Unit 12V Input Models -0.7 --- 25 24V Input Models -0.7 --- 50 Input Surge Voltage (1 sec. max.) 48V Input Models -0.7 --- 100 12V Input Models 8 8. 5 9 24V Input Models 15 17 18Start-Up Voltage 48V Input Models 30 33 36 12V Input Models 7 8 8.5 24V Input Models 13 15 17Under Voltage Shutdown 48V Input Models 25 29 34 VDC Reverse Polarity Input Current --- --- 1 A Short Circuit Input Power --- --- 3500 mW Internal Power Dissipation --- --- 5000 mW Conducted EMI (with suffix A only) All Models Compliance to EN 55022,class A and FCC part 15,class A Output Specifications Parameter Conditions Min. Typ. Max. Unit Output Voltage Accuracy --- ±1.0 ±2.0 % Output Voltage Balance Dual Output, Balanced Loads --- ±0.5 ±2.0 % Line Regulation Vin=Min. to Max. --- ±0.1 ±0.5 % Load Regulation Io=10% to 100% --- ±0.5 ±1.0 % Ripple & Noise (20MHz) --- 55 80 mV P-P Ripple & Noise (20MHz) Over Line, Load & Temp. --- --- 100 mV P-P Ripple & Noise (20MHz) --- --- 15 mV rms Transient Recovery Time --- 300 500 uS Transient Response Deviation 25% Load Step Change --- ±2 ±4 % Temperature Coefficient --- ±0.01 ±0.02 %/℃ Over Load Protection Foldback 120 150 --- % Short Circuit Protection Cont inuous General Specifications Parameter Conditions Min. Typ. Max. Unit I/O Isolation Voltage (rated) 60 Seconds 1500 --- --- VDC I/O Isolation Resistance 500 VDC 1000 --- --- M Ω I/O Isolation Capacitance 100KHz, 1V --- 1200 1500 pF Switching Frequency 290 330 400 KHz MTBF (calculated) MIL-HDBK-217F@25℃, Ground Benign 700,000 --- --- Hours 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 2500mA Slow-Blow Type 1250mA Slow-Blow Type 750mA Slow-Blow Type Remote On/Off Control Parameter Conditions Min. Typ. Max. Unit Converter On 2.5V ~ 5.5V or Open Circuit Converter Off -0.7V ~ 0.8V or Short Circuit Control Input Current (on) Vctrl = 5.0V --- --- 50 uA Control Input Current (off) Vctrl = 0V --- --- -1 mA Control Common Referenced to Negative Input Standby Input Current Nominal Vin --- --- 10 mA Total Power InTotal Power International, Inc Toll Free: 877-646-0900 www.total-power.com Tota Total Power International, Inc.

Environmental Specifications Parameter Conditions Min. Max. Unit Operating Temperature Range (with Derating) Ambient -40 +80 ℃ Case Temperature --- +100 ℃ Storage Temperature Range -50 +125 ℃ Humidity (non condensing) --- 95 % rel. H Cooling Free-Air convection Lead Temperature (1.5mm from case for 10Sec.) --- 260 ℃ Power Derating Curve Derating Curve without Heatsink Derating Curve with Heatsink 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 0-20MHz. 4 These power converters require a minimu m output loading to maintain specified regulation, operation under no-load conditions will not damage these modules; however they may not meet all specifications listed. 5 All DC/DC converters should be externally fused at the front end for protection. 6 Other input and output voltage may be av ailable, please contact factory. 7 To order the converter with Remote On/Off function, add suffix RC (e.g. MKW2521-RC) to order code. 8 To order the converter with input filter meeting EN55022, Class A , add suffix A (e.g. MKW2521A) to order code. 9 To order the converter with heatsink, add suffix H (e.g. MKW2521H) to order code. 10 Specifications subject to change without notice. Total Power InTotal Power International, Inc Toll Free: 877-646-0900 www.total-power.com Tota Total Power International, Inc.

Mechanical Dimensions Pin Connections Pin Single Output Dual Output 1 +Vin +Vin 2 -Vin -Vin 3 +Vout +V out

4 No Pin Common

6 Remote On/Off (Optional)

NC: No Connection ►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 : Metal With Non-Conductive Baseplate Base Material : FR4 PCB (flammability to UL 94V-0 rated) Weight : 32g Heatsink (Option –H) Physical Characteristics 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 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. Bottom View 10.16 5.08 6.0 10.2 [0.24] [0.40] 50.8 [2.00] [0.40] 10.16 [0.40] 7.62 [0.30] [0.20] 1.00 [ 0.04] 7.62 [0.30] 25.4 [1.00] 2.54 [0.10] 3 4 5 1 26 3.6 [0.14] 1.1 [0.04] 31.0 [1.22]Max Heat-sink Thermal pad Clamp Converter 23.0 [0.91] 18.0 [0.71]Max Total Power InTotal Power International, Inc Toll Free: 877-646-0900 www.total-power.com Tota Total Power International, Inc.

Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with a inductor Lin (4.7uH) 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. +Out -Out +Vin -Vin DC / DC Converter Load Battery + Lin+ Cin To Oscilloscope Current Probe Peak-to-Peak Output Noise Measurement Test Use a Cout 0.47uF 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. +Out -Out +Vin -Vin Single Output DC / DC Converter Resistive LoadScope Copper Strip Cout Copper Strip +Out -Out +Vin -Vin Dual Output DC / DC Converter Resistive Load Scope Copper Strip Cout Com. ScopeCout Copper Strip Copper Strip Design & Feature Considerations 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 o pen collector or equivalent. leakage current of the switch at on/off terminal (2.5 to 5.5V) is 50uA. 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. 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 22uF for the 12V input devices and a 6.8uF 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 ripple, it is recommended to use 4.7uF capacitors at the output. +Out -Out +Vin -Vin Load DC Power Source Cout Single Output DC / DC Converter +Out -Out +Vin -Vin Load DC Power Source CoutCom. Dual Output DC / DC Converter Load Cout Maximum Capacitive Load The MKW2500 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 per formance we recommend 220uF maximum capacitive load for dual outputs and 470uF capacitive load for single 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. DUT Position of air velocity probe and thermocouple 50mm / 2in Air Flow 15mm / 0.6in Total Power InTotal Power International, Inc Toll Free: 877-646-0900 www.total-power.com Tota Total Power International, Inc.