FEATURES High efficiency: 90.5% 12V/ 5A Size: 58.4mmx22.8mmx10.0mm (2.30x0.90x0.39) SMD and Through-hole versions Industry standard pin out 2:1 input range Fixed frequency operation Input UVLO, Output OTP, OCP, OVP Basic insulation 2250V isolation Monotonic startup into normal and pre-biased loads Output voltage trim: 10% No minimum load required ISO 9001, TL 9000, ISO 14001, QS 9000, OHSAS 18001 certified manufacturing facility UL/cUL 60950-1 (US & Canada) recognized Delphi Series E24SR, 66W Eighth Brick Family DC/DC Power Modules: 24V in, 12V/5A out OPTIONS The Delphi Series E24SR Eighth Brick, 24V input, single output, Positive On/Off logic isolated DC/DC converters are the latest offering from a world leader in SMD pin power systems technology and manufacturing Delta Electronics, Inc. Short pin lengths available This product family is available in either a through-hole or surface-mounted package and provides up to 66 watts of power or 20A of output current (3.3V and below) in an industry standard footprint and pinout. The E24SR converter operates from an input voltage of 18V to 36V and is available in output voltages from 3.3V to 12V. Efficiency for the 12V output is 90.5% at 5A full load. With creative design technology and optimization of component placement, these converters possess outstanding electrical and thermal performance, as well as extremely APPLICATIONS high reliability under highly stressful operating conditions. All models are Telecom / DataCom fully protected from abnormal input/output voltage, current, and Wireless Networks temperature conditions. The Delphi Series converters meet all safety Optical Network Equipment requirements with basic insulation. Server and Data Storage Industrial / Test Equipment DATASHEET DS E24SR12005 10282013 TECHNICAL SPECIFICATIONS (T =25C, airflow rate=300 LFM, V =24 Vdc, nominal Vout unless otherwise noted.) A in PARAMETER NOTES and CONDITIONS E24SR12005 (Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 36 Vdc Transient (100ms) 100ms 50 Vdc Operating Temperature Refer to figure 21 for measuring point 117 C Storage Temperature -55 125 C Input/Output Isolation Voltage 2250 Vdc INPUT CHARACTERISTICS Operating Input Voltage 18 36 Vdc Input Under-Voltage Lockout Turn-On Voltage Threshold 16 17 17.8 Vdc Turn-Off Voltage Threshold 15 16 17 Vdc Lockout Hysteresis Voltage 0.7 1 1.5 Vdc Maximum Input Current 100% Load, 18Vin 3.8 A No-Load Input Current 150 180 mA Off Converter Input Current 3 10 mA 2 2 Inrush Current (I t) 0.1 A s Input Reflected-Ripple Current P-P thru 12H inductor, 5Hz to 20MHz 10 mA Input Voltage Ripple Rejection 120 Hz 55 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=24V, Io=Io.max, Tc=25C 11.82 12 12.18 Vdc Output Voltage Regulation Over Load Io=Io, min to Io, max 3 10 mV Over Line Vin=18V to36V 3 10 mV Over Temperature Tc=-40C to100C 100 mV Total Output Voltage Range Over sample load, line and temperature 11.76 12.24 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1F ceramic, 10F tantalum 50 100 mV RMS Full Load, 1F ceramic, 10F tantalum 15 30 mV Operating Output Current Range 0 5 A Output Over Current Protection Output Voltage 10% Low 110 140 % DYNAMIC CHARACTERISTICS Output Voltage Current Transient 10F Tan & 1F Ceramic load cap, 0.1A/s Positive Step Change in Output Current 50% Io.max to 75% Io.max 180 250 mV Negative Step Change in Output Current 75% Io.max to 50% Io.max 180 250 mV Settling Time (within 1% Vout nominal) 150 us Turn-On Transient Start-Up Time, From On/Off Control 5 ms Start-Up Time, From Input 5 ms Back bias start-up 90% of nominal output voltage Back drive current limit while pin on-off is enabled Io=0A 0.1 A Back drive current limit while pin on-off is disabled Io=0A 50 mA Maximum Output Capacitance Full load 5% overshoot of Vout at startup 2000 F EFFICIENCY 100% Load 90.5 % 60% Load 90 % ISOLATION CHARACTERISTICS Input to Output 2250 Vdc Isolation Resistance 10 M Isolation Capacitance 1500 pF FEATURE CHARACTERISTICS Switching Frequency 350 kHz ON/OFF Control, Negative Remote On/Off logic Logic Low (Module On) -0.7 0.5 V Logic High (Module Off) 3 18 V ON/OFF Control, Positive Remote On/Off logic Logic Low (Module Off) -0.7 0.5 V Logic High (Module On) 3 18 V On/off pin open circuit voltage 9.6 V On/off pin pull down resistance 12 Kohm Output Voltage Trim Range Pout max rated power -10 +10 % Pout max rated power Output Voltage Remote Sense Range +10 % Output Over-Voltage Protection Over full temp range 13.8 16.8 V GENERAL SPECIFICATIONS MTBF Io=80% of Io, max Ta=25C, 300LFM airflow 2.81 M hours Weight 22.0 grams Over-Temperature Shutdown Refer to figure 21 for measuring point 130 C 2 DS E24SR12005 10282013