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NQB-1NWB-DDNL-000-ESA Datasheet(PDF) 9 Page - CUI INC

Part # NQB-1NWB-DDNL-000-ESA
Description  FULLY REGULATED ADVANCED BUS CONVERTERS
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Manufacturer  CUI [CUI INC]
Direct Link  http://www.cui.com
Logo CUI - CUI INC

NQB-1NWB-DDNL-000-ESA Datasheet(HTML) 9 Page - CUI INC

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cui.com
date 02/20/2013
│ page 9 of 30
CUI Inc
│ SERIES: NQB-N │ DESCRIPTION: FULLY REGULATED ADVANCED BUS CONVERTERS
Electrical Specification
12.0 V, 39 A / 468 W
T
P1, TP3 = -40 to +90ºC, VI = 40 to 60 V.
Typical values given at: T
P1, TP3 = +25°C, VI = 53 V, max IO, unless otherwise specified under Conditions.
Additional C
out = 3.9 mF, Configuration File: 19010-CDA 102 0314/002
Note
1: OCP in hic-up mode
2: Low ESR-value
3: C
out = 100 µF, external capacitance
4: Sink current drawn by external device connected to the RC pin. Minimum sink current required guaranteeing activated RC function.
parameter
conditions/description
min
typ
max
units
input voltage range (V
I)
40
60
V
turn-off input voltage (V
Ioff)
decreasing input voltage
36
37
38
V
turn-on input voltage (V
Ion)
increasing input voltage
38
39
40
V
internal input capacitance (C
I)
18
μF
output power (P
O)
0
468
W
efficiency (η)
50% of max I
O
max I
O
50% of max I
O, VI = 48 V
max I
O, VI = 48 V
96.7
95.7
96.8
95.6
%
%
%
%
power dissipation (P
d)
max I
O
21.2
30.5
W
input idling power (P
li)
I
O = 0 A, VI = 53 V
2.8
W
input standby power (P
RC)
V
I = 53 V (turned off with RC)
0.4
W
switching frequency (f
s)
0-100% of max I
O
140
kHz
output voltage setting and ac-
curacy (V
Oi)
T
P1 = +25°C, VI = 53 V, IO = 39 A
11.88
12.0
12.12
V
output voltage tolerance band
(V
O)
0-100% of max I
O
11.76
12.24
V
line regulation (V
O)
max I
O
31
60
mV
load regulation (V
O)
V
I = 53 V, 1-100% of max IO
5
25
mV
load transient voltage deviation
(V
tr)
V
I = 53 V, load step 25-75-25% of max IO, di/dt =
1 A/μs
±0.4
V
load transient recovery time
(t
tr)
V
I = 53 V, load step 25-75-25% of max IO, di/dt =
1 A/μs
150
µs
ramp-up time (t
r) - (from
10−90% of V
Oi)
10-100% of max I
O, TP1 = 25ºC, VI = 53 V
8
ms
start-up time (t
s) - (from VI
connection to 90% of V
Oi)
10-100% of max I
O, TP1 = 25ºC, VI = 53 V
24
ms
V
I shut-down fall time (tf) -
(from V
I off to 10% of VO)
max I
O
I
O = 0 A, CO = 0 mF
3
7
ms
s
RC start-up time (t
RC)
max I
O
12
ms
RC shut-down fall time (t
RC) -
(from RC off to 10% of V
O)
max I
O
I
O = 0 A, CO = 0 mF
4.5
7
ms
s
output current (I
O)
0
39
A
current limit threshold (I
lim)
V
O = 10.8 V, TP1, TP3 < max TP1, TP3
41
44
47
A
short circuit current (I
sc)
T
P1 = 25ºC, see Note 1
14
A
recommended capacitive load
(C
out)
T
P1 = 25ºC, see Note 2
0.1
3.9
6
mF
output ripple & noise (V
Oac)
See ripple & noise section, max I
O , see Note 3
50
110
mVp-p
over voltage protection (OVP)
T
P1, TP3 = 25°C, VI = 53 V, 10-100% of max IO
15.6
V
remote control (RC)
sink current (note 4), see operating information
trigger level, decreasing RC-voltage
trigger level, increasing RC-voltage
2.6
2.9
0.7
mA
V
V


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