PART NUMBER: EDH1-48-015-30 DC/DC Converter
VIN = +48V, Baseplate Temperature = 25°C, unless otherwise specified.

PARAMETER MIN TYP MAX UNITS REMARKS
ABSOLUTE MAXIMUM RATINGS          
Input Voltage     100 V  
Input/Output/Baseplate Isolation Voltage     1,500 V  
Storage Temperature -55   +125 °C  
Operating Temperature -40   +85 °C Temperature measured at the baseplate
ON/OFF Pin Voltage -25   +25 V  
INPUT CHARACTERISTICS          
Operating Input Voltage Range 36 48 75 V  
Input Under-Voltage Lockout—
          Turn On		 33.5 34.5 35.5 V  
Input Under-Voltage Lockout—
          Turn Off		 30.5 31.5 33 V  
Input Over-Voltage Shutdown—
          Turn Off		 77 78.5 79.5 V  
Input Over-Voltage Shutdown—
          Turn On		 76 77 78 V  
No Load Input Current   40 60 mA  
Off Converter Input Current   1.5 3 mA  
Inrush Current Transient Rating   0.01   A2s  
Input Reflected Ripple Current   30   mA RMS
OUTPUT CHARACTERISTICS          
Output Voltage Set Point 1.49 1.50 1.52 V  
Output Voltage Load Regulation   ±2 ±10 mV 0A to 6.25A Output Load
Output Voltage Line Regulation   ±2 ±10 mV 36V to 75V Input Voltage
Output Voltage Regulation
          Over Temp.		   ±20 ±35 mV -40°C to +85°C Baseplate Temperature
Output Voltage Total Range 1.46   1.55 V Any combination of load, line or temperature
Output Voltage Ripple and Noise   30 45 mV Peak-to-Peak, 20 MHz bandwidth
    10 15 mV RMS
Output Current Operating Range 0   30 A  
Output Current-Limit Inception 31 34 37 A Output Voltage Sags by 10%
DYNAMIC CHARACTERISTICS          
Input Voltage Ripple Rejection   -60   dB 120 Hz
Output Voltage Load Transient
           Response		   200
200		   mV Pk-Pk
µS		 50% to 75% of the Output Current
Settling Time to 1%
Turn-On Time   10 15 mS  
Turn-On Overshoot   3   % 10,000µF Capacitance, No Output Load
THERMAL CHARACTERISTICS          
Efficiency—100% Load 81 82   %  
Efficiency—80% Load 82 83   %  
Efficiency—60% Load 83.5 84.5   %  
Efficiency—40% Load 85 86   %  
Baseplate-to-Ambient Thermal
           Resistance		 1.5   8.0 °C / Watt  
Baseplate-to-Heatsink Thermal
           Resistance		   0.4   °C / Watt  
Thermal Shutdown   110   °C Temperature measured at the baseplate
Thermal Shutdown Restart   100   °C Automatic Recovery
ISOLATION CHARACTERISTICS          
Input/Output/Baseplate Isolation
             Voltage		 1,500     V  
Input/Output Isolation Resistance 10     Mohm  
Input/Output Isolation Capacitance   3,300   pF  
CONTROL CHARACTERISTICS          
Switching Frequency 247 250 253 KHz  
ON/OFF Off-State Voltage (-P Option) 0   1 V  
On-State Voltage 3.5   10 V An open turns on the converter
ON/OFF Off-State Voltage (Standard) 3.5   10 V An open turns off the converter
On-State Voltage 0   1 V  
Output Voltage Trim Range -20   +10 %  
Output Voltage Remote Sense Range     +10 %  
Output Over-Voltage Protection   125   % Automatic Recovery

Specification subject to change without notice.
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Last Revised: June 1, 2001