PAH50S48-24 TDK Corporation, PAH50S48-24 Datasheet - Page 72

• Manufacturer Part Number: PAH50S48-24
• Description: POWER SUPPLIES
• Manufacturer: TDK Corporation

Specifications of PAH50S48-24

• Rohs Compliant: YES

PAH
B-214
PAH
power module internal temperature rises excessively, the
thermal protection circuit will shut down the power module.
The power module will recover automatically when the
baseplate temperature cools down.
 ON/OFF Control (CNT)
Without turning the input on and off, the output can be en-
abled and disabled using this function. This control circuit
is on the input side of the power module; CNT terminal pin.
There are two options available in this function, which are
Negative Logic and Positive Logic. In the standard model
where Negative Logic is used, power module will turn on
when the CNT terminal pin is shorted to –Vin or a low
logic voltage is provided. The Power module will turn off
when CNT terminal pin is open or Logic high is provided.
In the /P optional model where Positive Logic is used, the
control method is vice versa to Negative logic.
The maximum CNT pin voltage when it is opened is 7V.
The maximum low logic sourcing current is 0.6mA. When
using this function, attach a 0.1uF capacitor between the
CNT and –Vin terminals as close as possible.
Remote ON/OFF control can also be exercised by opening
or closing the contacts of a switch or relay, or by operating
a transistor as a switch in series with the CNT terminal.
Standard remote ON/OFF control circuit is provided in
the primary circuit. For secondary control, isolation can be
achieved through use of an optocoupler or relay.
Below tables summarize the CNT levels and output states
with different logic types.
a） Negative Logic: (Standard model)
b） Positive Logic: (/P option)
 Operation Temperature
The baseplate temperature range for PAH75D48 SERIES
is from -40℃ to 100℃ .
CNT Connection Method
CNT Level for INPUT –V
H (more than 2.0V) or Open
L (less than 1.0V) or Short
CNT Level for INPUT –V
H (more than 2.0V) or Open
L (less than 1.0V) or Short
75D48
＋
＋Vin
CASE
−Vin
CNT
OUTPUT
OUTPUT
OFF
OFF
ON
ON
〈Input
 Operation Humidity
Avoid the buildup of condensation on or in the power mod-
ule.
 Storage Temperature
Please note that sudden temperature changes can cause
condensation buildup, and other harmful affects to each
terminal solder.
 Storage Humidity
High temperature and humidity can cause the terminals
on the module to oxidize. The quality of the solder will be-
come worse.
 Cooling Method
The operating temperature is specified by the baseplate
temperature. Various cooling methods are possible such as
using heatsink or chassis of the equipment. If the tempera-
ture is very high, fan is recommended.
 Baseplate Temperature vs. Output Regulation
This is the output voltage change ratio when varying the
baseplate operation temperature.
 Withstand Voltage
The power module is designed to withstand 1.5kVDC be-
tween the input to the baseplate and input to output for
1 minute. In the case that the withstand voltage is tested
in the incoming goods test, etc., please set the limit of
the test equipment to 20 mA. The applied voltage must
be increased gradually from zero to the testing value, and
then decreased gradually at shutdown. Do not use a timer
where a pulse of several times the applied voltage can be
generated. This could cause damage to the module. Be
sure to short all the input and output pins as shown below.
Note: Please be sure to short all the input & output pins as
shown above.
-
1.5kVDC 1 min. (20mA)
Baseplate〉
Baseplate
Voltage
Tester
Baseplate
Voltage
Tester
・All specifications are subject to change without notice.
＋Vin
CNT
CASE
−Vin
＋Vin
CNT
CASE
−Vin
＋Vo2
−Vo2
＋Vo1
−Vo1
＋Vo1
−Vo1
＋Vo1
−Vo1
TRM2
TRM1
TRM2
TRM1