NQB-420DWA-AN Datasheet, PDF (4/36 Pages) CUI INC – FULLY REGULATED ADVANCED BUS CONVERTERS

CUI Inc │ SERIES: NQB-D │ DESCRIPTION: FULLY REGULATED ADVANCED BUS CONVERTERS
date 02/20/2013 │ page 4 of 36
Absolute Maximum Ratings
parameter
conditions/description
min
typ
max
units
operating temperature (T_P1)
storage temperature (T_S)
input voltage (V_I)
see thermal consideration section
-40
-55
-0.5
+125
°C
+125
°C
+80
+65*
V
isolation voltage (V_iso)
input voltage transient (V_tr)
input to output test voltage, see note 1
according to ETSI EN 300 132-2 and Telcordia GR-
1089-CORE
2250
Vdc
+100
+80*
V
remote control pin voltage (V_RC)
SALERT, CTRL, SCL, SDA, SA0,
SA1 (V Logic I/O)
see operating information section
-0.3
-0.3
18
V
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 unspecified
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
Auxillary
Supply
RC
+OUT
-OUT
Driver
RC isolation
Control
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