PAH200S48-12 TDK Corporation, PAH200S48-12 Datasheet - Page 35

• Manufacturer Part Number: PAH200S48-12
• Description: LAMBDA PART
• Manufacturer: TDK Corporation

Specifications of PAH200S48-12

• Rohs Compliant: YES

・All specifications are subject to change without notice.
PAH
C5: 0.1μF
To reduce spike noise voltage at the output, connect a ce-
ramic capacitor between +V and –V within 50mm distance
from the output terminals.
Also, take note that output spike noise voltage could vary
according to PCB wiring design.
C6:
When switches or connectors are used between input
source and PAH300, 350S24 Series input terminals, im-
pulse surge voltage is generated due to input throw-in by
switch on/off or due to inserting/removing of power module
from the active line. For this case, connect an additional
electrolytic capacitor C6 as shown in fig.1-3 and fig. 1-4.
Also, in-rush current flows at line throw-in. Therefore, be
sure to verify capability of switch or fuse to withstand I
line throw-in.
Reverse input connection
Reverse input polarity would cause module damage. For
cases where reverse connections are possible, connect a
protective diode and fuse. Use protective diode with higher
voltage rating than the input voltage, and with higher surge
current rating than the fuse.
● Recommended input filter as EMI countermeasure
（1） Recommended input filter as EMI countermeasure
Recommended Capacitance Value : 220μF and above
(conforms to VCCI Class 1, FCC class A)
3. Take note of the allowable ripple current of the capacitor
Fig.1-5 Protection for Reversed Connection of Input
Fig.1-4 Input Filter when Plural Power Modules
to be used. Especially, when load adding capacitors for
abrupt current changes, be sure to verify that ripple cur-
rent does not exceed allowable ripple current before use.
300S24, 350S24
Fig.1-3 Input Filter with Input Switch
(Voltage Rating 50V and above)
Switch
Switch
Fuse
C6
+
C6
+
Fuse
Fuse
Fuse
C1
+
+Vin
-Vin
C1
+
C1
+
C1
+
+Vin
+Vin
+Vin
-Vin
-Vin
-Vin
2
t at
Recommended Values:
Notes
2 Output Voltage Adjustment Range
Output voltage could be adjusted within the range de-
scribed below by external resister or variable resistor.
However, take note that OVP might trigger when output
voltage adjustment exceeds the ranges indicated below.
When increasing the output voltage, reduce the output
current accordingly so as not to exceed the maximum out-
put power.
Take note that input voltage range is limited as shown in
fig.2-1 when output voltage is increased.
Remote sensing is possible even when output voltage is
varied. For details on remote sensing function, please refer
to “9. Remote Sensing” .
C1:
C7:
C8,C9: 0.47μF (Film Capacitor)
L1:
1. For the power module output, connect output capacitors
2. C1 (electrolytic capacitor) value can be reduced if im-
3. VCCI Class 1, FCC Class A limits can be satisfied
●PAH300S24
●PAH300S48
12V: -40% to +10% of nominal output Voltage
28V: -40% to +18% of nominal output Voltage
described in the basic circuit connection.
pedance of input line is lower and operation of power
module is stable.
with the above recommended filter at Densei-Lambda
measuring conditions. However, there are cases where
above limits might not be satisfied due to input and out-
put wiring method, as well as, peripheral circuits. When
selecting input filter, be sure to verify actual EMI charac-
teristics (CE and RE) before finalizing the filter. Refer to
PAH300, 350S24-＊ Evaluation Data for details.
（％）
出
力
電
圧
680μF (Electrolytic Capacitor) 3 pcs in parallel
10μF (Ceramic Capacitor)
1mH (Common-mode choke coil)
120
118
110
100
120
118
110
100
Fuse
90
60
Output Voltage Adjustment Range
Fig.1-6 Recommended input filter
C7
0
Fig.2-1 Limit of Input Voltage
as EMI countermeasure
18
L1
Input Voltage (VDC)
18.5
C8
C9
12V Model
12V 機種
19
28V Model
C1
+
28V 機種
MODULE
+Vin
CNT
CASE
-Vin
POWER
19.5
36
B-177
PAH