NQB-420NWA-AN Datasheet, PDF (9/30 Pages) CUI INC – FULLY REGULATED ADVANCED BUS CONVERTERS

CUI Inc │ SERIES: NQB-N │ DESCRIPTION: FULLY REGULATED ADVANCED BUS CONVERTERS
date 02/20/2013 │ page 9 of 30
Electrical Specification
12.0 V, 39 A / 468 W
T_P1, T_P3 = -40 to +90ºC, V_I = 40 to 60 V.
Typical values given at: T_P1, T_P3 = +25°C, V_I = 53 V, max I_O, unless otherwise specified under Conditions.
Additional C_out = 3.9 mF, Configuration File: 19010-CDA 102 0314/002
parameter
conditions/description
min
typ
max
input voltage range (V_I)
turn-off input voltage (V_Ioff)
turn-on input voltage (V_Ion)
internal input capacitance (C_I)
output power (P_O)
efficiency (η)
power dissipation (P_d)
input idling power (P_li)
input standby power (P_RC)
switching frequency (f_s)
output voltage setting and ac-
curacy (V_Oi)
output voltage tolerance band
(V_O)
line regulation (V_O)
load regulation (V_O)
load transient voltage deviation
(V_tr)
load transient recovery time
(t_tr)
ramp-up time (t_r) - (from
10−90% of V_Oi)
start-up time (t_s) - (from V_I
connection to 90% of V_Oi)
V_I shut-down fall time (t_f) -
(from V_I off to 10% of V_O)
RC start-up time (t_RC)
RC shut-down fall time (t_RC) -
(from RC off to 10% of V_O)
output current (I_O)
current limit threshold (I_lim)
short circuit current (I_sc)
recommended capacitive load
(C_out)
output ripple & noise (V_Oac)
over voltage protection (OVP)
remote control (RC)
decreasing input voltage
increasing input voltage
50% of max I_O
max I_O
50% of max I_O, V_I = 48 V
max I_O, V_I = 48 V
max I_O
I_O = 0 A, V_I = 53 V
V_I = 53 V (turned off with RC)
0-100% of max I_O
T_P1 = +25°C, V_I = 53 V, I_O = 39 A
0-100% of max I_O
max I_O
V_I = 53 V, 1-100% of max I_O
V_I = 53 V, load step 25-75-25% of max I_O, di/dt =
1 A/μs
V_I = 53 V, load step 25-75-25% of max I_O, di/dt =
1 A/μs
10-100% of max I_O, T_P1 = 25ºC, V_I = 53 V
10-100% of max I_O, T_P1 = 25ºC, V_I = 53 V
max I_O
I_O = 0 A, C_O = 0 mF
max I_O
max I_O
I_O = 0 A, C_O = 0 mF
V_O = 10.8 V, T_P1, T_P3 < max T_P1, T_P3
T_P1 = 25ºC, see Note 1
T_P1 = 25ºC, see Note 2
See ripple & noise section, max I_O , see Note 3
T_P1, T_P3 = 25°C, V_I = 53 V, 10-100% of max I_O
sink current (note 4), see operating information
trigger level, decreasing RC-voltage
trigger level, increasing RC-voltage
40
36
38
0
11.88
11.76
0
41
0.1
37
39
18
96.7
95.7
96.8
95.6
21.2
2.8
0.4
140
12.0
31
5
±0.4
150
8
24
3
7
12
4.5
7
44
14
3.9
50
15.6
2.6
2.9
60
38
40
468
30.5
12.12
12.24
60
25
39
47
6
110
0.7
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.
cui.com
units
V
V
V
μF
W
%
%
%
%
W
W
W
kHz
V
V
mV
mV
V
µs
ms
ms
ms
s
ms
ms
s
A
A
A
mF
mVp-p
V
mA
V
V