Data Sheet
September 20, 2004
JBW050F Power Modules: dc-dc Converter;
36 to 75 Vdc Input, 3.3 Vdc Output; 33 W
Electrical Specifications
(continued)
Table 2. Output Specifications
Parameter
Output Voltage Set Point
(V
I
= 48 V; I
O
= I
O, max
; T
C
= 25 °C)
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life.
See Figure 10.)
Output Regulation:
Line (V
I
= 36 V to 75 V)
Load (I
O
= I
O, min
to I
O, max
)
Temperature (T
C
= –40 °C to +100 °C)
Output Ripple and Noise Voltage
(See Figure 9.):
RMS
Peak-to-peak (5 Hz to 20 MHz)
External Load Capacitance
Output Current
(At I
O
< I
O, min
, the modules may exceed output
ripple specifications.)
Output Current-limit Inception
(V
O
= 90% of V
O, nom
)
Output Short-circuit Current (V
O
= 250 mV)
Efficiency (V
I
= 48 V; I
O
= I
O, max
; T
C
= 70 °C)
Switching Frequency
Dynamic Response
(∆I
O
/∆t = 1 A/10 µs, V
I
= 48 V, T
C
= 25 °C;
tested with a 10 µF aluminum and a 1.0 µF
ceramic capacitor across the load):
(see Figure 5 and Figure 6)
Load Change from I
O
= 50% to 75% of I
O, max
:
Peak Deviation
Settling Time (V
O
< 10% of peak deviation)
Load Change from I
O
= 50% to 25% of I
O, max
:
Peak Deviation
Settling Time (V
O
< 10% of peak deviation)
Symbol
V
O, set
V
O
Min
3.25
3.20
Typ
3.3
—
Max
3.35
3.40
Unit
Vdc
Vdc
—
—
—
—
—
—
0.01
0.05
15
0.1
0.2
50
%V
O
%V
O
mV
—
—
—
I
O
—
—
0
0.5
—
—
—
—
40
150
*
10
mVrms
mVp-p
µF
A
I
O, cli
—
η
—
—
—
—
—
11.4
140
81
330
14
†
—
—
—
A
%I
O, max
%
kHz
—
—
—
—
—
—
—
—
3.8
400
3.8
400
—
—
—
—
%V
O, set
µs
%V
O, set
µs
* Consult your sales representative or the factory.
† These are manufacturing test limits. In some situations, results may differ.
Tyco Electronics Power Systems
3
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
