JC050A Lineage Power, JC050A Datasheet - Page 11

• Manufacturer Part Number: JC050A
• Description: CONVERTER DC/DC 5V 50W OUT
• Manufacturer: Lineage Power
• Series: JC050r
• Type: Isolated with Remote On/Offr

Specifications of JC050A

• Output: 5V
• Number Of Outputs: 1
• Power (watts): 50W
• Mounting Type: Through Hole
• Voltage - Input: 18 ~ 36V
• Package / Case: 9-DIP Module
• 1st Output: 5 VDC @ 10A
• Size / Dimension: 2.40" L x 2.28" W x 0.50" H (61mm x 57.9mm x 12.7mm)
• Power (watts) - Rated: 50W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 84%
• Approvals: CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

Feature Descriptions
Output Voltage Set-Point Adjustment
(Trim)
Figure 21. Circuit Configuration to Increase
Figure 22. Resistor Selection for Increased Output
Output Overvoltage Clamp
The ouput overvoltage clamp consists of control cir-
cuitry, independent of the primary regulation loop, that
monitors the voltage on the output terminals. The con-
trol loop of the clamp has a higher voltage set point
than the primary loop (see Feature specifications
table). this provides a redundant voltage control that
reduces the risk of output overvoltage.
V
ON/OFF
CASE
V
100k
I
I
10M
(+)
(–)
10k
1M
March 2008
Lineage Power
(continued)
0
Output Voltage
Voltage
SENSE(+)
SENSE(–)
% CHANGE IN OUTPUT VOLTAGE (Δ%)
2
V
TRIM
V
O
O
(+)
(–)
4
(continued)
6
R
adj-up
8
R
LOAD
10
8-715 (C).d
8-880a
18 Vdc to 36 Vdc Input, 5 Vdc Output; 50 W to 100 W
Overtermperature Protection (Shutdown)
The 100 W module features an overtemperature pro-
tection circuit to safeguard against thermal damage.
The circuit shuts down the module when the maximum
case temperature is exceeded. The module restarts
automatically after cooling.
Thermal Considerations
Introduction
The power modules operate in a variety of thermal
environments; however, sufficient cooling should be
provided to help ensure reliable operation of the unit.
Heat-dissipating components inside the unit are ther-
mally coupled to the case. Heat is removed by conduc-
tion, convection,a nd radiation to the surrounding
environment. Proper cooling can be verified by mea-
suring the case temperature. Peak temperature (Tc)
occurs at the position indicated in Figure 23.
Note: Top view, pin locations are for reference.
Figure 23. Case Temperature Measurement
The temperature at this location should not exceed
100 °C. The output power of the module should not
exceed the rated power for the module as listed in the
Ordering Information table.
Although the maximum case temperature of the power
modules is 100 °C, you can limit this temperature to a
lower value for extremely high reliability.
For additional information on these modules, refer to the
Thermal Management JC-, JFC-, JW-, and JFW-Series
50 W to 150 W Board-Mounted Power Modules Technical
Note (TN97-008EPS).
7.6 (0.3)
Measurements shown in millimeters and (inches).
Location
V
ON/OFF
CASE
V
I
I
(+)
(–)
38.0 (1.50)
+ SEN
– SEN
V
TRIM
V
O
O
(+)
(–)
MEASURE CASE
TEMPERATURE HERE
8-716 (C).f
11