WPN20R REV A 3/2000Page 2
ORDERING INFORMATION
SPECIFICATIONS, ALL MODELS
Specifications are at T
A
= +25°C nominal input voltage, rated output current unless otherwise specified.
GENERAL OUTPUT INPUT
PARAMETER CONDITIONS MIN TYP MAX UNITS
INPUT
Voltage Range 9 12 18 VDC
18 24 36 VDC
33 48 75 VDC
Reflected Ripple Current All Input Ranges 50 mApk-pk
INPUT CONTROL
Temperature Shutdown Case 105 115 °C
Temperature Hysteresis 10 °C
Quiescent Standby Current Current Into + V
IN 810mA
Undervoltage Control See Attached Plots
OUTPUT
ISOLATION
Rated Voltage 1500 V
DC
Test Voltage 60Hz, 10 Seconds 1500 VDC
Resistance 10 GW
Capacitance 400 pF
Leakage Current 30 mArms
Rated Power 20 W
Voltage Setpoint Accuracy ±1.5 %
Temperature Coefficient ±0.005 %/°C
Line Regulation
Singles High Line to Low Line ±0.1 %
Duals High Line to Low Line ±0.5 %
Load Regulation
Singles Mn Load to Nom. Load ±0.5 %
Duals Mn Load to Nom. Load ±2.0 %
Ripple & Noise
Single Outputs BW = 5Hz to 20MHz 60 100 mVp-p
Dual Outputs BW = 5Hz to 20MHz 50 100 mVp-p
Output Adjust Range See Attached Plots
Short Circuit and Overcurrent Protection Continuous
Max Capacitive Load 550 mF/A
GENERAL
Switching Frequency 300 KHz
MTTF per ML-HDBK-217 Circuit Stress Method
Ground Benign TA = +25° Unmodified Database 1,400,000 Hr
Package Weight 32 g
TEMPERATURE
Specification Case -40 + 85 °C
Operation Case -40 + 85 °C
Storage -55 +125 °C
Logic Compatibility .............................................. Open Collector TTL
EC On .............................................................................. Open Circuit
EC Off ...................................................................................... < 0.7V
Shutdown Idle Current ............................................................... 8mA
REMOTE ON/OFF CONTROL
WPN20R XXYZZ
Device Family
20W Regulated DC/DC Unit
Model Number
xx = Input Range, e.g. 48V
y = Number of Outputs (S=single; D=dual)
zz = Output Voltage, e.g. ‘05’ for 5V
