JC050B Datasheet, PDF (2/16 Pages) List of Unclassifed Manufacturers – JC050B

JC050B, JC075B, JC100B Power Modules: dc-dc Converters;
18 Vdc to 36 Vdc Input, 12 Vdc Output; 50 W to 100 W
Data Sheet
October 1997
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Parameter
Input Voltage:
Continuous
Transient (100 ms)
I/O Isolation Voltage
Operating Case Temperature
(See Thermal Considerations section.)
Storage Temperature
Symbol
Min
VI
—
VI, trans
—
—
—
TC
–40
Tstg
–40
Max
40
50
1500
100
110
Unit
Vdc
Vdc
Vdc
°C
°C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Table 1. Input Specifications
Parameter
Operating Input Voltage
Maximum Input Current
(VI = 0 V to 36 V; IO = IO, max):
JC050B (See Figure 1)
JC075B (See Figure 2)
JC100B (See Figure 3.)
Inrush Transient
Input Reflected-ripple Current, Peak-to-peak
(5 Hz to 20 MHz, 12 µH source impedance;
see Figure 11.)
Input Ripple Rejection (120 Hz)
Symbol
Min
Typ
Max
Unit
VI
18
28
36
Vdc
II, max
—
II, max
—
II, max
—
i²t
—
—
—
—
5.0
A
—
7.0
A
—
9.0
A
—
1.0
A²s
5
—
mAp-p
—
—
60
—
dB
Fusing Considerations
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone
operation to an integrated part of a sophisticated power architecture. To preserve maximum flexibility, internal fus-
ing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. The
safety agencies require a normal-blow, dc f use with a maximum rating of 20 A (see Safety Considerations section).
Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same
type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data for further information.
2
Tyco Electronics Corp.