
Tyco Electronics Corp.
3
Data Sheet
May 1998
18 Vdc to 36 Vdc Input, 12 Vdc Output; 50 W to 100 W
FC050B and FC100B Power Modules: dc-dc Converters;
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
11.4
—
12.6
Vdc
Output Voltage Set Point
(VI = 28 V; IO = IO, max; TC = 25 °C):
Unit Operating in Parallel or PARALLEL Pin
Feature Descriptions.)
PARALLEL Pin Open
VO, set
11.76
—
12.24
12.48
Vdc
Output Regulation:
Line (VI = 18 V to 36 V)
Load (IO = IO, min to IO, max)
Temperature (TC = 0 °C to 90 °C)
—
0.05
0.2
—
0.2
0.4
120
%
mV
Output Ripple and Noise Voltage
RMS
Peak-to-peak (5 Hz to 20 MHz)
—
70
200
mVrms
mVp-p
Output Current
(At IO < IO, min, the modules may exceed output
ripple specications.):
FC050B
FC100B
IO
0.4
—
4.2
8.3
A
Output Current-limit Inception
(VO = 10.8 V; see Figure 2 and Feature Descriptions.) —
103
—
130
% IO, max
Output Short-circuit Current
—
135
170
% IO, max
External Load Capacitance
(electrolytic, total for one unit or multiple paralleled
units):
FC050B
FC100B
—
0
—
2200
F
Efciency
(VI = 28 V; IO = IO, max; TC = 25 °C;
η
82
84
—
%
Dynamic Response
(
IO/t = 1 A/10 s, VI = 28 V, TC = 25 °C; see
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)
—
350
300
350
300
—
mV
s
mV
s