® MIW1200 SERIES DC/DC CONVERTER 2-3W, DIP-Package FEATURES ►Efficiency up to 86% ►1500VDC Isolation ►MTBF > 1,000,000 Hours ►2:1 Wide Input Range ►CSA60950-1 Safety Approval ►Short Circuit Protection ►Complies with EN55022 Class A ►Temperature Performance -25℃ to +85℃ ►Industry Standard Pinout ►UL 94V-0 Package Material ►Internal SMD Construction ►3 Years Product Warranty PRODUCT OVERVIEW Minmax's MIW1200-Series power modules operate over input voltage ranges of 9-18VDC, 18-36VDC and 36-75VDC which provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, ±5V, ±12V and ±15VDC. The -25℃ to +85℃ operating temperature range makes it ideal for data communication equipments, mobile battery driven equipments, distributed power systems, telecommunication equipments, mixed analog/digital subsystems, process/machine control equipments, computer peripheral systems and industrial robot systems. The modules have a maximum power rating of 3W and a typical full-load efficiency of 86%, continuous short circuit, 25mA output ripple, EN55022 Class A conducted noise compliance minimize design-in time, cost and eliminate the need for external filtering. Model Selection Guide Model Input Output Output Number Voltage Voltage Current (Range) VDC MIW1221 MIW1222 MIW1223 MIW1224 MIW1225 MIW1226 MIW1227 MIW1231 MIW1232 MIW1233 MIW1234 MIW1235 MIW1236 MIW1237 MIW1241 MIW1242 MIW1243 MIW1244 MIW1245 MIW1246 MIW1247 12 (9 ~ 18) 24 (18 ~ 36) 48 (36 ~ 75) VDC 3.3 5 12 15 ±5 ±12 ±15 3.3 5 12 15 ±5 ±12 ±15 3.3 5 12 15 ±5 ±12 ±15 Input Current Max. Min. @Max. Load mA 600 500 250 200 ±250 ±125 ±100 600 500 250 200 ±250 ±125 ±100 600 500 250 200 ±250 ±125 ±100 mA 60 50 25 20 ±25 ±12.5 ±10 60 50 25 20 ±25 ±12.5 ±10 60 50 25 20 ±25 ±12.5 ±10 mA(typ.) 220 267 305 309 274 313 321 109 130 150 149 134 152 152 53 64 74 73 65 74 75 Reflected Max. capacitive Efficiency Ripple Load (typ.) @No Load Current mA(typ.) mA(typ.) @Max. Load μF 4000 30 15 1000# 4000 8 15 1000# 4000 4 15 1000# # For each output E-mail:[email protected] 2012/07/30 REV:2 Tel:886-6-2923150 Page 1 of 4 % 75 78 82 81 76 80 78 76 80 83 84 78 82 82 78 82 85 86 80 84 83 ® MIW1200 SERIES DC/DC CONVERTER 2-3W, DIP-Package 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 Min. -0.7 -0.7 -0.7 Typ. Max. Unit 25 --50 --100 --4.5 7 9 VDC 8 12 18 16 24 36 --6.5 8.5 --11 17 --22 34 ----1 A --1000 2000 mW ----2500 mW Compliance to EN 55022,class A and FCC part 15,class A All Models Output Specifications Parameter Output Voltage Setting Accuracy Conditions At 50% Load and Nominal Vin Output Voltage Balance Min. Typ. Max. Unit --- --- ±1.0 %Vom. Dual Output, Balanced Loads --- ±0.5 ±2.0 % Line Regulation Vin=Min. to Max. --- ±0.2 ±0.5 % Load Regulation Io=10% to 100% --- ±0.2 ±0.5 % --- 25 50 mV P-P --- 300 500 μsec --- ±3 ±6 % --- ±0.01 ±0.02 %/℃ 120 --- --- % Ripple & Noise (20MHz) Transient Recovery Time 50% Load Step Change Transient Response Deviation Temperature Coefficient Over Load Protection Foldback Short Circuit Protection Continuous General Specifications Parameter Conditions Min. Typ. Max. Unit 60 Seconds 1500 --- --- VDC I/O Isolation Resistance 500 VDC 1000 --- --- MΩ I/O Isolation Capacitance 100KHz, 1V --- 350 500 pF 200 300 450 KHz 1,000,000 --- --- Hours I/O Isolation Voltage (rated) Switching Frequency MTBF (calculated) MIL-HDBK-217F@25℃, Ground Benign Safety Approvals UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1 Input Fuse 12V Input Models 24V Input Models 48V Input Models 700mA Slow-Blow Type 350mA Slow-Blow Type 135mA Slow-Blow Type Environmental Specifications Parameter Conditions Min. Max. Unit Natural Convection -25 +85 ℃ Case Temperature --- +90 ℃ Storage Temperature Range -50 +125 ℃ Humidity (non condensing) --- 95 % rel. H 260 ℃ Operating Ambient Temperature Range (See Power Derating Curve) Cooling Free-Air convection Lead Temperature (1.5mm from case for 10Sec.) E-mail:[email protected] 2012/07/30 REV:2 Tel:886-6-2923150 Page 2 of 4 --- ® MIW1200 SERIES DC/DC CONVERTER 2-3W, DIP-Package Power Derating Curve 100 Natural Convection 20LFM Output Power (%) 80 100LFM 60 200LFM 400LFM 40 20 0 ~ -25 0 20 40 60 80 100 110 Ambient Temperature C 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 50% to 100% 3 Ripple & Noise measurement bandwidth is 0-20MHz. 4 These power converters require a minimum output loading to maintain specified regulation, operation under no-load conditions will not damage these modules; 5 All DC/DC converters should be externally fused at the front end for protection. however they may not meet all specifications listed. 6 Other input and output voltage may be available, please contact factory. 7 That “natural convection” is about 20LFM but is not equal to still air (0 LFM). 8 Specifications are subject to change without notice. Package Specifications 4.5 [0.18] 10.2 [0.40] Mechanical Dimensions 0.50 [0.02] Bottom View 23 22 -Vin -Vin 9 No Pin Common 11 NC -Vout 14 +Vout +Vout 16 -Vout Common 22 +Vin +Vin 23 +Vin +Vin 11 9 16 NC: No Connection 14 15.24 [0.60] 31.8[1.25] 5.08 4.5 [0.20][0.18] Physical Characteristics Case Size : 31.8x20.3x10.2mm (1.25x0.80x0.40 inches) Case Material Pin Material : : Non-Conductive Black Plastic Copper-Clad Steel Wire Weight : 12.2g E-mail:[email protected] 2012/07/30 REV:2 Tel:886-6-2923150 Page 3 of 4 2.54 [0.10] ►All 2.54 [0.10] Dual Output -Vin 3 20.3 [0.80] 3 15.22 [0.60] 2 Pin Connections Pin Single Output 2 -Vin dimensions in mm (inches) ►Tolerance: X.X±0.25 (X.XX±0.01) X.XX±0.13 ( X.XXX±0.005) ►Pin diameter 0.5 ±0.05 (0.02±0.002) ® MIW1200 SERIES DC/DC CONVERTER 2-3W, DIP-Package 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 0.47μF 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 Scope Cout Resistive Load Cout Scope Copper Strip Technical Notes 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 3.3μF for the 12V input devices and a 1.5μF 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 3.3μF 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 MIW1200 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 1000μF maximum capacitive load for dual outputs and 4000μF 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 90℃. 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. 2012/07/30 REV:2 Page 4 of 4