DFA20 SERIES
DUAL OUTPUT
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.
FEATURES
鈥?Remote ON/OFF and TRIM
鈥?Water Washable Case
鈥?Overcurrent Protection and Thermal Shutdown
鈥?Efficiencies to 85%
鈥?Low Input to Output Capacitance
鈥?700Volt to 1544Volt Isolation
鈥?Five-Side Shielded Case
鈥?Extended Range Input (2:1)
BOTTOM VIEW
2.02
(51.31)
SIDE VIEW
0.040 (1.02) DIA
7 PLACES
1.100
(27.94)
0.700
(17.78)
0.600
(15.24)
0.400
(10.16)
0.300
(7.62)
0.000
0.100
(2.54)
0.51
(13.0)
4
5
1
2
6
2.02
(51.31)
3
7
0.25
(6.35)
0.11
(2.8)
0.000
1.800
(45.72)
Mechanical tolerances unless otherwise noted:
X.XX dimensions: 鹵0.020 inches
X.XXX dimensions: 鹵0.005 inches
0.45
(11.43)
0.000
NOTES
(1) All parameters measured at Tc = 25擄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.
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
1
1
2
3
4
