FEATURES High Efficiency: 92.7% 28V/16A Size: 61.0x57.9x12.7mm (2.402.280.50) Standard footprint Industry standard pin out Fixed frequency operation Metal baseplate (heatspreader) Input UVLO, Output OCP, OVP, OTP Basic insulation 1500V isolation 2:1 Input voltage range ISO 9001, TL 9000, ISO 14001, QS9000, OHSAS18001 certified manufacturing facility UL/cUL 60950-1 (US & Canada), and TUV (EN60950-1) - pending Delphi Series H48SA, 450W Half Brick Family DC/DC Power Modules: 48V in, 28V/16A out OPTIONS The Delphi Series H48SA Half Brick, 48V input, single output, Positive on/off logic Output OVP hiccup option isolated DC/DC converters are the latest offering from a world leader in power systems technology and manufacturing -- Delta Electronics, Inc. The H48SA28016 product provides up to 450 watts of power or 28V/16A in an industry standard footprint. It provides 92.7% efficiency for 28V at full load. With creative design technology and optimization of component placement, these converters possess outstanding electrical and thermal performance, as well as extremely high reliability under highly stressful operating conditions. All models APPLICATIONS are fully protected from abnormal input/output voltage, current, and Telecom / Datacom temperature conditions. The Delphi Series converters meet all safety Wireless Networks requirements with basic insulation. A variety of optional heatsinks are Optical Network Equipment Server and Data Storage available for extended thermal operation as well as for use in higher Industrial / Testing Equipment air flow applications: 200 to 400 LFM. PRELIMINAR DATASHEET DS H48SA28016 05202009 TECHNICAL SPECIFICATIONS (T =25C, airflow rate=300 LFM, V =48Vdc, nominal Vout unless otherwise noted.) A in PARAMETER NOTES and CONDITIONS H48SA28016 (Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient 100ms 100 Vdc Operating Temperature Please refer to Fig. 21 for measuring point -40 98 C Storage Temperature -55 125 C Input/Output Isolation Voltage 1500 Vdc INPUT CHARACTERISTICS Operating Input Voltage 36 48 75 Vdc Input Under-Voltage Lockout Turn-On Voltage Threshold 33 35 Vdc Turn-Off Voltage Threshold 31 33 Vdc Lockout Hysteresis Voltage 2 Vdc Maximum Input Current 100% Load, 36Vin 16 A Minimum -Load Input Current 100 mA Off Converter Input Current Per ETSI EN300 132-2 15 mA 2 2 Inrush Current(I t) 1 A s Input Reflected-Ripple Current P-P thru 12H inductor, 5Hz to 20MHz 12 mA Input Voltage Ripple Rejection 120 Hz 60 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25C 27.58 28.00 28.42 Vdc Output Voltage Regulation Over Load Io=Io,min to Io,max 28 56 mV Over Line Vin=36V to 75V 28 56 mV Over Temperature Tc=-40C to 100C 140 280 mV Total Output Voltage Range over sample load, line and temperature 27.16 28.00 28.84 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1F ceramic, 10F Low ESR cap 280 560 mV RMS Full Load, 1F ceramic, 10F Low ESR cap 100 mV Operating Output Current Range 16 A Output DC Current-Limit Inception Output Voltage 10% Low 105 120 140 % DYNAMIC CHARACTERISTICS 48V, Tested with 10F aluminum, Low ESR cap and Output Voltage Current Transient 1F Ceramic load cap, Io/t=1A/10S Positive Step Change in Output Current 50% to 75% Io.max 560 mV Negative Step Change in Output Current 75% to 50% Io.max 560 mV Settling Time (within 1% Vout nominal) 300 s Turn-On Transient Start-Up Time, From On/Off Control 20 50 ms Start-Up Time, From Input 20 50 ms Output Capacitive Load Full load 5% overshoot of Vout at startup 220 5000 F EFFICIENCY 100% Load 92.7 % 80% Load 93 % ISOLATION CHARACTERISTICS Input to Output 1500 Vdc Input to Case 1500 Vdc Output to Case 500 Vdc Isolation Resistance 10 M Isolation Capacitance 1900 pF FEATURE CHARACTERISTICS Switching Frequency 280 kHz ON/OFF Control Negative Remote On/Off logic Logic Low (Module On) Von/off at Ion/off=1.0mA 0 1.2 V Logic High (Module Off) Von/off at Ion/off=0.0 A 2.4 15 V ON/OFF Control, Positive Remote On/Off logic Logic Low (Module Off) Von/off at Ion/off=1.0mA 0 1.2 V Logic High (Module On) Von/off at Ion/off=0.0 A 2.4 15 V ON/OFF Current Ion/off at Von/off=0.0V 1 mA Leakage Current Logic High, Von/off=15V 50 uA Output Voltage Trim Range Across Pins 9 & 5, Vin=48V -50 +18 % Output Voltage Remote Sense Range Pout max rated power 0.5 V Output Over-Voltage Protection 140 % GENERAL SPECIFICATIONS MTBF Io=80% of Io, max Ta=25C TBD M hours Weight 97 grams Over-Temperature Shutdown Please refer to Fig.21 for measuring point 104 C H48SA28016 05202009 2