JAHW075Y1 Lineage Power, JAHW075Y1 Datasheet - Page 12

• Manufacturer Part Number: JAHW075Y1
• Description: CONVERTER DC/DC 1.8V 27W OUT
• Manufacturer: Lineage Power
• Series: JAHWr
• Type: Isolated with Remote On/Offr

Specifications of JAHW075Y1

• Output: 1.8V
• Number Of Outputs: 1
• Power (watts): 27W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 9-DIP Module
• 1st Output: 1.8 VDC @ 15A
• Size / Dimension: 2.40" L x 2.28" W x 0.50" H (61mm x 57.9mm x 12.7mm)
• Power (watts) - Rated: 27W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 88%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

dc-dc Converters; 36 to 75 Vdc Input, 1.8 Vdc Output; 18 W to 36 W
Feature Descriptions
Output Voltage Set-Point Adjustment
(Trim)
Figure 23. Resistor Selection for Decreased
Figure 24. Circuit Configuration to Increase
12
12
100k
10k
1M
V
ON/OFF
CASE
V
I
I
(+)
(–)
(continued)
0
Output Voltage
Output Voltage
% CHANGE IN OUTPUT VOLTAGE (Δ%)
SENSE(+)
SENSE(–)
10
V
TRIM
V
O
O
(+)
(–)
(continued)
20
R
adj-up
30
R
LOAD
8-715 (F).b
8-2470 (F)
40
Output Overvoltage Protection
The output overvoltage protection consists of circuitry
that monitors the voltage on the output terminals. If the
voltage on the output terminals exceeds the overvolt-
age protection threshold, the module will shut down
and restart automatically.
Overtemperature Protection
To provide protection in a fault condition, the unit is
equipped with an overtemperature circuit. In the event
of such a fault, the module enters into an auto-restart
“hiccup” mode with low output voltage until the fault is
removed. Recovery from the overtemperature protec-
tion is automatic after the unit cools below the overtem-
perature protection threshold.
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, and radiation to the surrounding
environment. Proper cooling can be verified by mea-
suring the case temperature. Peak temperature (T
occurs at the position indicated in Figure 25.
Note: Top view, pin locations are for reference only. Measurements
Figure 25. Case Temperature Measurement
(1.20)
shown in millimeters and (inches).
30.5
Location
V
ON/OFF
CASE
V
(1.14)
I
I
(+)
(–)
29.0
+SEN
–SEN
V
TRIM
V
O
O
(+)
(–)
MEASURE CASE
TEMPERATURE HERE
Lineage Power
April 2008
8-716 (F).h
C
)