A
25 to 45 Watt UW Single Series DC/DC Converters
2401 Stanwell Drive Concord, California 94520 Ph: 925/687-4411 or 800/542-3355 Fax: 925/687-3333 www.calex.com Email: sales@calex.com
2
3/2001
NOTES
*
All parameters measured at Tc = 25°C, nominal input voltage
and full rated load unless otherwise noted. Refer to the
CALEX Application Notes for the definition of
terms,
measurement circuits and other information.
(2)
Determine the correct fuse size by calculating the maximum DC
current drain at low line input, maximum load then adding 20 to
25 percent.
(3)
No minimum load required.
(4)
Short term stability is specified after a 30 minute warm-up at full
load and with constant line, load and ambient conditions.
(5)
The transient response is specified as the time required to settle
from 25 to 75% step load change (rise time of step = 2Sec.) to
a 1% error band.
(6)
Dynamic response is the peak overshoot voltage during the
transient response time defined in note 5 above.
(7)
The input ripple rejection is specified for DC to 120Hz ripple with
a modulation amplitude of 1% Vin.
(8)
For module protection only, see also note 2.
(9)
The user must not let the output at the pins exceed this voltage
due to the combined effects of line drops and output trim.
(10) The logic shutdown pin is Open Collector TTL, CMOS, and relay
compatible. The input to this pin is referenced to input minus and
is protected to +100 VDC.
(11) The functional temperature range is intended to give an additional
data point for use in evaluating this power supply. At the low
functional temperature the power supply will function with no
side effects, however, sustained operation at the high functional
temperature will reduce expected operational life. The data
sheet specifications are not guaranteed over the functional
temperature range.
(12) The case thermal impedance is specified as the case temperature
rise over ambient per package watt dissipated.
(13) Specifications subject to change without notice.
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