PAH50S48-2.5 TDK Corporation, PAH50S48-2.5 Datasheet - Page 71

• Manufacturer Part Number: PAH50S48-2.5
• Manufacturer: TDK Corporation

・All specifications are subject to change without notice.
PAH
5 Output Ripple & Noise Measurement Method
The standard measurement for output ripple and noise
are based on normal probe with 20MHz bandwidth scope.
Upon measurement of the ripple voltage, make sure that
the oscilloscope probe leads are not too long.
1） Specification
The ripple & noise specification for operating range be-
tween –40℃ to 100℃ is shown below.
ⅰ） 5V & 3.3V
ⅱ） 2.5V & 1.8V
ⅲ）
Below results are for reference only which is based on JEITA
standard (JEITA probe with 100MHz bandwidth scope).
The measurement condition is Vin=48V and Tbp =25℃ .
PAH75D48-5033
PAH75D48-3325
iii) Vo2 (1.8V): output adjust up
JEITA measurement method
Io1=15A ; Io2=0A
Io1=0A ; Io2=15A
Io1=5A ; Io2=15A
Io1=15A ; Io2=0A
Io1=0A ; Io2=15A
Io1=5A ; Io2=15A
75D48
200mV
100mV
150mV
Load Condition
Load Condition
75mV
R
adj2
10000
-40℃
-40℃
1000
＋Vo2
−Vo2
＋Vo1
−Vo1
100
(up) ＝ (
TRM2
TRM1
10
0.1
1
0
%CHANGE IN OUTPUT VOLTAGE (Δ%)
Baseplate temperature
Baseplate temperature
50mm
0℃
0℃
C3
C4
9.28 −ΔVo
2
ΔVo
LOAD
LOAD
4
Vo1 (3.3V) Vo2 (2.5V)
Oscillo-
scope
Oscillo-
scope
Vo1 (5V)
85℃
85℃
6
50mV
40mV
51mV
46mV
48mV
42mV
)kΩ
8
100℃
100℃
T
T
BP
BP
10
Vo2 (3.3V)
43mV
36mV
60mV
33mV
46mV
33mV
6 Maximum Line Regulation
Maximum line regulation is the maximum output voltage
change when the input voltage is slowly varied within the
input voltage range. The measurement point for the input
and output voltages are ±Vin , ±Vo1 and ±Vo2 respec-
tively.
7 Maximum load regulation
Maximum load regulation is the maximum output voltage
value change when varying the load current slowly within
the standard output current range. The measurement point
for the input and output voltages are ±Vin, ±Vo1 and ±
Vo2 respectively.
8 Brownout
There will be output voltage overshoot during brown-out
(momentary input line off) condition.
9 Over Current Protection
The PAH75D48 SERIES is equipped with an over current
protection circuit. When the short or overload condition is
removed, the output will automatically recover. This set-
ting is fixed and cannot be varied externally. If the short or
overload condition continues, the power module could be
damaged due to the heat condition.
 Over Voltage Protection
There are 2 types of over voltage protection method avail-
able for PAH75D48 SERIES. In the standard model, a
latching shutdown method is adopted. For this method
there are two ways to reset the power module after OVP
protection triggers. They are by (i) giving a pulse to the
control pin or (ii) recycling the input voltage. In the /V op-
tional model, the power module will shutdown after OVP
protection triggers but will recover automatically when over
voltage is removed.
 Thermal Protection
The PAH75D48 SERIES have a thermal protection circuit
that senses the baseplate temperature between the range
of 105℃ to 130℃ for an over temperature condition.
Under a condition where the ambient temperature or the
PAH75D48-3318
PAH75D48-2518
Io1=15A ; Io2=0A
Io1=0A ; Io2=15A
Io1=5A ; Io2=15A
Io1=15A ; Io2=0A
Io1=0A ; Io2=15A
Io1=5A ; Io2=15A
Load Condition
Load Condition
Vo1 (3.3V) Vo2 (1.8V)
Vo1 (2.5V) Vo2 (1.8V)
42.5mV
40.5mV
49mV
46mV
32mV
35mV
33mV
48mV
36mV
34mV
35mV
40mV
B-213
PAH