PH300S48-24 TDK Corporation, PH300S48-24 Datasheet - Page 51
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PH300S48-24
Manufacturer Part Number
PH300S48-24
Description
Power Supply, Power Rating 300 Watt, Output Current Rating 12.50 Ampere
Manufacturer
TDK Corporation
Datasheet
1.PH300S48-24.pdf
(58 pages)
Specifications of PH300S48-24
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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・All specifications are subject to change without notice.
PH
operation, it is possible to operate. Note the output derat-
ing is necessary in case that the baseplate temperature is
over 90℃ for PH300S and over 85℃ for PH600S.
Refer to “Thermal Design” ” in Application Notes in the in-
struction manual for details.
1) Load rate ( % ) is expressed as higher rate for maxi-
2) Maximum baseplate temperature is 100℃. Confirm
(PH300S)
(PH600S)
Recommend to use the baseplate temperature to derate for
better improvement of converter reliability.
Operating Humidity
Note built-up condensation may cause of abnormal opera-
tion or damage of the power module.
Figure 14-2 Temperature Measurement Point of Baseplate
mum output power or maximum output current.
it at the measuring point shown as Figure14-2 in the
worst operating condition.
300S, 600S
Input
Side
Figure14-1Output Derating Curve
3.3V, 5V,12V, 15V, 24V, 28V, 48V Output
Temperature
Measuring Point of Baseplate
Baseplate Temperature (℃)
Baseplate Temperature (℃)
3.3V, 5V Output
12V, 15V, 24V, 28V, 48V Output
Temperature
Measuring Point
of Baseplate
Output
Side
Storage Temperature
Note that radical temperature changes can be a cause of
condensation and affect other harmful problems to each
terminal soldering.
Storage Humidity
To storage under high temperature and humidity condi-
tions, it makes each terminal oxidize. Hence, the quality of
the soldering would be worse.
Cooling Method
Various cooling method can be used since the operating
temperature is specified by baseplate temperature.
Refer to “Thermal Design” in Application Notes in the in-
struction manual for details in of thermal design.
Baseplate Temperature vs. Output Regulation
Output voltage ratio is the ratio when only operating base-
plate temperature changes.
Withstand Voltage
The power module is designed to withstand 2.5kVAC for
input - baseplate and 3kVAC for input - output (1.5kVAC
for input - baseplate and 1.5kVAC for input - output for
48VDC input model) for 1 minute. Set up the limit value
of withstand voltage tester as 20mA in case of incoming
goods test and so on.
Also, it is designed to withstand 500VDC for output -
baseplate for 1 minute. The applied voltage must be direct
voltage. In a test with alternating voltage, the power mod-
ule will be damaged, therefore, do not test with alternating
voltage.
Do not apply the test voltage from the beginning. It shall
be gradually increased from zero and also be gradually de-
creased for shut down. Especially using withstand voltage
with timer, impulse several times as the applied voltage
occurs when the switch is off by the timer, and the power
module would be damaged.
Shorten at the output side as shown in the following draw-
ing.
2.5kVAC 1 minute (20mA)
Figure20-1 Withstand Voltage Test for Input - Baseplate
Withstand
Voltage Tester
(48VDC Input Model: 1.5kVAC)
Baseplate
B-349
PH