GE Industrial Solutions NaOS NXA025 SMT - Manual (Page 3)

Data Sheet
October 5, 2009 Naos TM NXA025 SMT Non-isolated Power Modules:
10 – 14Vdc Input; 0.8Vdc to 5.5Vdc Output; 25A output current
LINEAGE POWER 3
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point All V
O, set
-1.2 ⎯ +1.2 % V
O, set
(V
IN
=V
N, min
, I
O
=I
O, max
, T
A
=25°C)
Output Voltage All V
O, set
-3.0 ⎯ +3.0 % V
O, set
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Adjustment Range All V
O
0.7887 5.5 Vdc
Selected by an external resistor
Output Regulation
Line (V
IN
=V
IN, min
to V
IN, max
) All ⎯ 0.01 0.1 % V
O, set
Load (I
O
=I
O, min
to I
O, max
) All ⎯ 0.1 0.2 % V
O, set
Temperature (T
ref
=T
A, min
to T
A, max
) All ⎯ 0.5 1 % V
O, set
Output Ripple and Noise on nominal output
(V
IN
=V
IN, nom
and I
O
=I
O, min
to I
O, max
Cout = 2 * 0.47μF ceramic capacitors)
RMS (5Hz to 20MHz bandwidth) All ⎯ 5 15 mV
rms
Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 15 50 mV
pk-pk
External Capacitance
ESR ≥ 1 mΩ All C
O, max
⎯ ⎯ 1000 μF
ESR ≥ 10 mΩ All C
O, max
⎯ ⎯ 10,000 μF
Output Current All I
o
0 25 Adc
Output Current Limit Inception (Hiccup Mode ) All I
O, lim
⎯ 125 150 % I
o
Output Short-Circuit Current All I
O, s/c
⎯ 1 ⎯ Adc
(V
O
≤250mV) ( Hiccup Mode )
Efficiency V
O,set
= 0.8Vdc η 79.0 %
V
IN
= V
IN, nom
, T
A
=25°C V
O, set
= 1.2Vdc η 84.7 %
I
O
=I
O, max ,
V
O
= V
O,set
V
O,set
= 1.5Vdc η 87.3 %
V
O,set
= 1.8Vdc η 88.9 %
V
O,set
= 2.0Vdc η 89.7 %
V
O,set
= 2.5Vdc η 91.4 %
V
O,set
= 3.3Vdc η 93.1 %
V
O,set
= 5.5Vdc η 95.1 %
Switching Frequency All f
sw
⎯ 500 ⎯ kHz
Dynamic Load Response
(dIo/dt=5A/ μs; V
IN
= V
IN, nom
; T
A
=25°C) All V
pk
⎯ 150 mV
Load Change from Io= 50% to 100% of
Io,max; No external output capacitors
Peak Deviation
Settling Time (Vo<10% peak deviation) All t
s
⎯ 25 ⎯ μs
(dIo/dt=5A/ μs; V
IN
= V
IN, nom
; T
A
=25°C) All V
pk
⎯ 150 mV
Load Change from Io= 100% to 50%of Io,max:
No external output capacitors
Peak Deviation
Settling Time (Vo<10% peak deviation) All t
s
⎯ 25 ⎯ μs