NQB-420NWA-AN Datasheet, PDF (4/30 Pages) CUI INC – FULLY REGULATED ADVANCED BUS CONVERTERS

CUI Inc │ SERIES: NQB-N │ DESCRIPTION: FULLY REGULATED ADVANCED BUS CONVERTERS
date 02/20/2013 │ page 4 of 30
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) see operating information section
-0.3
18
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
Functional Description
T_P1, T_P3 = -40 to +90ºC, V_I = 36 to 75 V.
Typical values given at: T_P1, T_P3 = +25°C, V_I= 53 V, max I_O , unless otherwise specified under Conditions
Configuration File: 190 10-CDA 102 0314/001
parameter
fault protection
characteristics
input under voltage lockout
(UVLO)
output voltage - under voltage
protection
output voltage - over voltage
protection
over current protection (OCP)
over temperature protection
(OTP)
conditions/description
fault limit
setpoint accuracy
hysteresis
delay
fault limit
fault response time
fault limit
fault response time
setpoint accuracy (I_O)
fault limit
fault response time
fault limit
hysteresis
fault response time
min
-2
-6
typ
33
2
300
0
200
15.6
200
41
200
125
10
300
max
2
6
cui.com
units
V
%
V
μs
V
μs
V
μs
%
A
μs
ºC
ºC
μs