Datasheet

cui.com
date 11/07/2014 │ page 4 of 36CUI Inc │ SERIES: NQB-D │ DESCRIPTION: FULLY REGULATED ADVANCED BUS CONVERTERS
Absolute Maximum Ratings
parameter conditions/description min typ max units
operating temperature (T
P1
) see thermal consideration section -40 +125 °C
storage temperature (T
S
) -55 +125 °C
input voltage (V
I
) -0.5
+80
+65*
V
isolation voltage (V
iso
) input to output test voltage, see note 1 2250 Vdc
input voltage transient (V
tr
)
according to ETSI EN 300 132-2 and Telcordia GR-
1089-CORE
+100
+80*
V
remote control pin voltage (V
RC
) see operating information section -0.3 18 V
SALERT, CTRL, SCL, SDA, SA0,
SA1 (V Logic I/O)
-0.3 3.6 V
Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are normally tested with one
parameter at a time exceeding the limits of Output data or Electrical Characteristics. If exposed to stress above these limits, function and performance may degrade in an unspecied
manner.
Note 1: Isolation voltage (input/output to base-plate) max 750 Vdc.
* Applies for the narrow input version V
I
= 40-60 V
Fundamental Circuit Diagram
-IN
+IN
+OUT
-OUT
Driver
Driver
Control
RC isolation
Auxillary
Supply
RC
For more information, please visit the product page.