
1
DESCRIPTION
The compact, dual output DFA20 series provides power densities
up to 11 watts per cubic inch (0.67 watts per cm
3
). Ideal for
battery operated industrial, medical control and remote data
collection systems, this converter has fully filtered inputs and
outputs. Complete overload protection with independent
pulse-by-pulse current limiting and an overtemperature shutdown
ensures reliable system operation. Converters with 48 volt inputs
are isolated to 1544 volts.
DFA20 SERIES
DUAL OUTPUT
FEATURES
Remote ON/OFF and TRIM
Water Washable Case
Overcurrent Protection and Thermal Shutdown
Efficiencies to 85%
Low Input to Output Capacitance
700Volt to 1544Volt Isolation
Five-Side Shielded Case
Extended Range Input (2:1)
1
BOTTOM VIEW
2.02
(51.31)
SIDE VIEW
0
0
0
0.000
0.100
(
07 PLACES
0
2.02
(51.31)
(
2
3
7
6
5
4
1
0
(1.100
(0.700
0.300
(0.400
(10.16)
(0.51
(
(
NOTES
(1)
All parameters measured at Tc = 25°C, nominal input voltage and full rated load unless otherwise noted.
Refer to the Technical Reference Section for the definition of terms, measurement circuits and other
information.
Mechanical tolerances unless otherwise noted:
X.XX dimensions: ±0.020 inches
X.XXX dimensions: ±0.005 inches
NOTES (cont)
(2)
Case is electrically connected to Pin 2, -Input.
(3)
The functional case operating range is intended to give an additional data point for evaluating this
converter. Sustained operation at the higher operating range will reduce expected operational life.
The data Sheet specifications are not guaranteed beyond the case operating range.
(4)
The case thermal impedance is specified as the case temperature rise over ambient per package watt
dissipated.
Rev. 04/2000