IMX70 / IMY70 Series 70 to 90 Watt DC-DC Converters The IMX/IMY70 Series of board-mountable 70 Watt DC-DC converters has been designed according to the latest industry requirements and standards. The converters are particularly suitable for use in mobile or stationary applications in transport, railways, industry, or telecommunication, where variable input voltages or high transient voltages are prevalent. Covering 24, 72, 96 & 110 V battery voltages with 2 different models, the converters are available with one or two electrically isolated outputs from 5 V to 48 V, externally adjustable and with flexible load distribution. A shutdown input allows remote converter on/off. Features include consistently high efficiency over the entire input voltage range, high reliability, and excellent 12.5 dynamic response to load and line changes. 0.49 63.5 2.5 76.2 3 Features RoHS-compliant for all six substances 5 year warranty Extremely wide input voltage ranges up to 154 VDC 1 or 2 isolated outputs up to 48 V Basic insulation: IMX models Class I equipment with reinforced insulation: IMY models 1500 to 3000 VAC i/o electric strength test voltage Programmable input undervoltage lockout Shutdown / inhibit input Adjustable output voltages with flexible load distribution Sense lines and current share option External frequency synchronization 9.75 Output(s) no-load, overload, and short-circuit proof 0.38 Operating ambient temperature from 40 to 95 C 47.8 72.7 Thermal protection 1.88 2.86 Planar technology for best stability Metal case (12.5 mm high) or open frame with 9.75 mm profile Safety-approved to the latest edition of IEC/EN 60950-1 and UL/CSA 60950-1. CE mark for 110IMY70. 1 1 110IMY70 Table of Contents Page Page Description........................................................................................1 Electromagnetic Compatibility (EMC) .............................................12 Immunity to Environmental Conditions ...........................................13 Model Selection ................................................................................2 Functional Description ......................................................................3 Mechanical Data .............................................................................14 Electrical Input Data .........................................................................4 Safety and Installation Instructions .................................................15 Electrical Output Data.......................................................................6 Options ...........................................................................................17 Auxiliary Functions .........................................................................10 belfuse.com/power-solutions BCD.00002 Rev AJ, 28-May-2018IMX70 / IMY70 Series 70 to 90 Watt DC-DC Converters Description nd The converters are designed according to the international safety standards IEC/EN/UL 60950-1 2 Edition. The 24IMX70 converters exhibit basic insulation for the specified input voltage, whereas the 1 10IMY70 converters have reinforced insulation. The circuit is comprised of 2 planar magnetic devices. The components are automatically assembled and securely soldered onto a single PCB without any wire connection. Magnetic feedback ensures maximum repeatability in the control loop over all operating conditions and best reliability. Careful consideration of possible thermal stress ensure the absence of hot spots, such providing long life in en vironments, where temperature cycles are present. The thermal design without using any potting material allows operation up to an ambient temperature of 70 C in free air and up to 100 C with forced cooling. For extremely high vibration environments the case has holes for screw mounting. Model Selection Table 1: Model Selection 1 Output 1 Output 2 Input voltage Efficiency Model Options 2 2 V I V I V V V min typ o nom o nom o nom o nom i min i cont i max V A V A V V V % % 5.1 12 - - 43.2 50 to 137.5 154 89.5 91 110IMY70-05-0TG i, Z 12 7.0 - - 12 15 to 33.6 40.1 91 93 24IMX70-12-0TG i, Z 12 7.5 - - 43.2 50 to 137.5 154 90 93 110IMY70-12-0TG 15 5.7 - - 12 15 to 33.6 40.1 91 92 24IMX70-15-0TG i, Z 15 6.0 - - 43.2 50 to 137.5 154 90 93 110IMY70-15-0TG 24 1.3 24 1.3 12 15 to 33.6 40.1 87 90 24IMX70-24-24-0G i, Z 24 1.3 24 1.3 43.2 50 to 137.5 154 89 91 110IMY70-24-24-0G 1 Efficiency at T = 25 C, V , I A o nom o nom 2 Short time see table 2 for details Part Number Description 110 IMY70 - 24 - 24 0 i Z G Input voltage V i 24 V battery ...............................................................24 72 V, 96 V, 110 V battery .......................................... 110 Series ..............................................................IMX70, IMY70 Output voltage of output 1 ................................05, 12, 15, 24 Output voltage of output 2 ................................05, 12, 15, 24 Operating ambient temperature range T = 40 to 95 C .........................................................-0 A Options: Inhibit ............................................................................i 1 Current sharing function .............................................. T Open frame .................................................................. Z Feature: 2 RoHS-compliant for all 6 substances ......................... G 1 Standard feature for single-output models, not available for dual-output models 2 G is standard and is placed at the end of the part number Note: The sequence of options must follow the order above. Product Marking Converters without option Z are marked with the type designation, input and output voltages and currents, applicable safety approval and recognition marks, company logo, date code, and serial no. tech.support psbel.com belfuse.com/power-solutions BCD.00002 Rev AJ, 28-May-2018 2018 Bel Power Solutions & Protection Page 2 of 17