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DS-0493D 10/04
BOTTOM VIEW
–Input
Remote On/Off
+Input
+Output
+Sense
Output
Trim
–Sense
–Output
Figure 20. Industry Standard Quarter-Brick Pinout
Figure 20 readily allows users to confirm that DATEL quarter-brick DC/DC
converters are compatible to the industry-standard pinout, independent of
pin-numbering conventions.
The typical derating curves on the previous pages were developed by moni
-
toring the temperature of the case with a thermocouple placed on top of
the USQ case as shown in Figure 21. Users desiring to model their own
application's temperature derating for a particular environment (enclosed
area, orientation, airflow, possible heatsinking) should make sure the case
temperature does not exceed 110°C for any condition.
TOP VIEW
LOCA
TE
THERMOCOUPLE
HERE
X
+Input
Remote
On/Off
–
Input
–
Output
–
Sense
Output
T
r
im
+Sense
+Output
Figure 21. Thermocouple Placement for Temperature Derating Calculations
22
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein
do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444
Internet: www.datel-europe.com E-mail: datel.ltd@datel.com
DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01
Internet: www.datel-europe.com E-mail: datel.sarl@datel.com
DATEL GmbH München, Germany Tel: 89-544334-0
Internet: www.datel-europe.com E-mail: datel.gmbh@datel.com
DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025
Internet:
www.datel.co.jp Email: salestko@datel.co.jp, salesosa@datel.co.jp
DATEL China Shanghai, China Tel:
011-86-51317131
E-mail: davidx@datel.com
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.datel.com Email: sales@datel.com
www.cdpowerelectronics.com
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®
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A SUBSIDIARY OF C&D TECHNOLOGIES
USQ Series
2 0 A , S I N G L E O U T P U T D C / D C C O N V E R T E R S