
Tyco Electronics Corp.
3
Data Sheet
September 1997
dc-dc Converter; 36 to 72 Vdc Input, 3.3 Vdc Output; 99 W
FW150F Power Module:
Electrical Specications (continued)
Table 2. Output Specications
Parameter
Symbol
Min
Typ
Max
Unit
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life; see
VO
3.140
—
3.460
Vdc
Output Voltage Set Point
(VI = 48 V; IO = IO, max; TC = 25 °C):
Unit Operating in Parallel or PARALLEL Pin
Feature Descriptions.)
PARALLEL Pin Open
VO, set
3.230
3.300
3.370
3.432
Vdc
Output Regulation:
Line (VI = 36 V to 72 V)
Load (IO = IO, min to IO, max)
Temperature (TC = 0 °C to 90 °C)
—
0.05
0.1
10
0.2
0.4
50
%
mV
Output Ripple and Noise Voltage:
RMS
Peak-to-peak (5 Hz to 20 MHz)
—
35
100
mVrms
mVp-p
Output Current
(At IO < IO, min, the modules may exceed output
ripple specications.):
IO
1
—
30
A
Output Current-limit Inception
(VO = 3.0 V; see Feature Descriptions.)
IO, cli
103
—
130
% IO, max
Output Short-circuit Current
(VO = 250 mV)
—
135
170
% IO, max
External Load Capacitance
(electrolytic, total for one unit or multiple paralleled
units)
—
0
—
4000
F
Efciency
(VI = 48 V; IO = IO, max; TC = 25 °C; see Figure 9.) η
72
75
—
%
Dynamic Response
(
IO/t = 1 A/10 s, VI = 48 V, TC = 25 °C):
Load Change from IO = 50% to 75% of IO, max:
Peak Deviation
Settling Time (VO < 10% of peak deviation)
Load Change from IO = 50% to 25% of IO, max:
Peak Deviation
Settling Time (VO < 10% of peak deviation)
—
150
300
150
300
—
mV
s
mV
s