B70SR12424A/B/C/D 12V Output DC/DC Converter, Box Type Package FEATURES Wide input voltage range, 36~106V 300W Output Full Load Efficiency up to 89.5% 48Vin 90% 72Vin Intergrated fuse holder (option) Parallel Connection of multiple units Box type package with metal base plate Package Dimension: 190.0x76.0x44.0 mm (7.48x2.99x1.73) Operating Temperature Range - 40C to +75C Input Reverse Polarity Protection Minimized Inrush current Input UVLO, Output OCL, Short circuit protection, OVP, OTP Enable on/off (option) 2250VDC Isolation IP67 protection for selective model RoHs Compliant ISO 9001, ISO 14001 certified manufacturing facility UL60950 CE Mark EMC compatible: EN12895, CISPR11 ClassA Electrical transient conduction: ISO7637-2 The B70SR12424, a wide input voltage range of 36~106V, and single isolated output converter, is the latest product offering from a world leader in power systems technology and manufacturing Delta Electronics, Inc. Such box type DCDC converter can provide 300W, 12.4V regulated DC output voltage with full load efficiency up to 90% 72Vin The B70SR12424 offers input UVLO, output over current limit, short circuit, output over voltage, over temperature, and input reverse polarity protections, It has an option for intergrated fuse holder and enable on/off function. It also has parallel function and allows a wide operating temperature range of 40C to +75C. With creative design technology and optimization of component placement, this converter possess outstanding electrical and thermal performance, as well as high reliability under extrmely harsh operating conditions. The B70SR12424 meets IP67 protection (refer to water protection level specification). Input Characteristics Item Condition Min. Typ. Max. Unit Continuous Input Voltage 36 72 106 VDC Max Input voltage 10 minutes, normal operating 126 VDC Input Under-Voltage Lockout, Turn-On 33 34 35 VDC Voltage Threshold Input Under-Voltage Lockout, Turn-Off 31 32 33 VDC Voltage Threshold 1 2 3 VDC Lockout Hysteresis Voltage Maximum Input Current Vin=36V, 100% Load 9.2 10 A Vin=48V 35 60 mA No-Load Input Current Vin=72V, 80V 25 50 mA Off converter input current Vin=72V, enable off (C version) 7 12 mA Reflected input ripple current Vin=72V, Vpp 0.2 A Max Reverse Polarity Input Voltage 106 VDC Max Inrush current 10 A Internal Input Fuse 6.35mm*31.75mm 250V/25A Fast-acting fuse DS B70SR12424 12082016 E-mail: dcdc deltaww.com Output Characteristics Item Conditions Min. Typ. Max. Unit Operating Output Current Range 0 24 A Io=0 12.4 12.6 12.8 V Output Voltage Set Point Io=24A 12.0 12.2 12.4 V Vin=48V, Io=24A, peak to peak, 100 150 mV 20MHz bandwidth RMS 30 50 mV Output Voltage Ripple and Noise, Vin=72V, 80V, Io=24A, peak to peak, 150 200 mV 20MHz bandwidth RMS 50 80 mV Output Current Limit 25 28 31 A Current share accuracy 24A for each module 6 10 % Start-up time(start up time by Vin) Vin=48V,full load (for A/B/C/D) 500 600 mS Start-up time(start up time by Enable) Vin=48V,full load (for C) 250 350 mS Rise time 30 50 mS Output Voltage Protection 13 15 17 V Positive voltage step, 18A to 12A load 150 250 mV dynamic, 0.1A/us slew rate Output Voltage Current Transient Nagetive voltage step, 12A to 18A load 150 250 mV dynamic, 0.1A/us slew rate Maximum Output Capacitance ESR>10mohm 5000 F Output overshoot 3 % Efficiency 100% Load Vin=48V 87.5 89.5 % Efficiency 100% Load Vin=72V 88.0 90.0 % Efficiency 100% Load Vin=80V 88.0 90.0 % Efficiency 60% Load Vin=48V 88.0 90.0 % Efficiency 60% Load Vin=72V 88.3 90.3 % Efficiency 60% Load Vin=80V 88.3 90.3 % General Characteristics Item Conditions Min. Typ. Max. Unit Input to Output, Input to Case 2250 VDC Isolation Voltage, Ouput to Case 550 VDC Isolation Resistance, Input to Output 10 M Isolation Capacitance, Input to Output 5000 pF Switching Frequency 175 KHz MTBF Ta=25C, 80%load 1.08 Mhours Weight 900 g Environmental Specifications Parameter Conditions Min. Max. Unit Storage Temperature Range -40 +125 Operating Temperature Range Ambient Temperature -40 +75 Over Temperature Protection NTC Temperature 122 Humidity (non condensing) 95 % rel. H Water Protection Level For model P/N with suffix B IP67 Vibration IEC 60068-2-6 10G/15~200HZ/3 PLANES Shock IEC 60068-2-27 50G 3 PLANES Emission EN12895 30-1000MHz 34-45dBuV/m Immunity EN12895, EN61000-4-3 10V/m /27-1000MHz AM 10V/m /900MHz PM ESD EN12895, EN61000-4-2 Direct: 2KV 4KV Air: 2KV 4KV 8KV Notes 1 Specifications typical at Ta=+25 , nominal input voltage and rated full load output current unless otherwise noted. 2 Specifications are subject to change without notice. DS B70SR12424 12082016 E-mail: dcdc deltaww.com