JC050B Datasheet, PDF (7/16 Pages) List of Unclassifed Manufacturers – JC050B

Data Sheet
October 1997
JC050B, JC075B, JC100B Power Modules: dc-dc Converters;
18 Vdc to 36 Vdc Input, 12 Vdc Output; 50 W to 100 W
Characteristic Curves (continued)
Test Configurations
86
85
84
83
82
81
80
79
78
77
01
18 V
28 V
36 V
23
4
56
7
8
OUTPUT CURRENT, IO (A)
8-1243 (C).b
Figure 9. Typical JC100B Converter Efficiency vs.
Output Current at Room Temperature
TO OSCILLOSCOPE
LTEST
12 µH
CURRENT
PROBE
BATTERY
CS 220 µF
ESR < 0.1 Ω
@ 20 ˚C, 100 kHz
33 µF
ESR < 0.7 Ω
@ 100 kHz
VI(+)
VI(–)
8-203 (C).l
Note:Measure input reflected-ripple current with a simulated source
inductance (LTEST) of 12 µH. Capacitor CS offsets possible
battery impedance. Measure current as shown above.
Figure 11. Input Reflected-Ripple Test Setup
VO(+)
VO(–)
COPPER STRIP
1.0 µF
10 µF SCOPE
RESISTIVE
LOAD
8-513 (C).d
Note:Use a 1.0 µF ceramic capacitor and a 10 µF aluminum
0V
or tantalum capacitor. Scope measurement should be
made using a BNC socket. Position the load between
51 mm and 7 6mm ( 2in .an d 3in.) from the module.
Figure 12. Peak-to-Peak Output Noise
Measurement Test Setup
0V
TIME, t (5 ms/div)
8-1266 (C)
Figure 10.Typical Start-Up from Remote On/Off
JCxxxB1; IO = Full Load
Tyco Electronics Corp.
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