Data Sheet
12V/250mA Output
Isolated DC/DC Converter
BP5324A
Absolute Maximum Ratings
Dimensions (Unit : mm)
Parameter
Input voltage
Symbol
Vi
Limits
7
Unit
V
38.5Max.
13.6Max.
Maximum output current
Operating temperature range
Storage temperature range
Isolation voltage
Iopeak
Topr
250
mA
°C
°C
−25 to +80
−25 to +85
500
Tstg
VISO
Vrms
1
2
4
5
8
10 11 12
0.5 0.1
1.3 0.2
0.25 0.05
9.05Max.
3.25Max.
P=2.54 0.2
4.55Max.
2.54x11=27.94
Electrical Characteristics
(Ta=25°C)
Derating Curve
Derating Curve
300
Parameter
Symbol Min.
Typ.
5.0
12.0
Max.
Unit
Conditions
V
V
4.5
11.4
0
Vi
Vo
Io
5.5
12.6
250
0.05
0.5
0.15
−
Input voltage range
Output voltage
Output current
Line regulation
Load regulation
Output ripple voltage
Power conversion efficiency
∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2 Please refer to Load regulation, Conversion efficiency.
Vi=5V, Io=250mA
250
200
∗1
mA Vi=5V
V
V
Vpp Vi=5V, Io=250mA
%
−
150
Operation Range
−
−
−
Vi=4.5 to 5.5V, Io=200mA
Vi=5V, Io=0 to 250mA ∗2
VL
VR
Vp
η
0.01
0.23
0.03
74
100
50
0
-30 -20 -10
0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(°C)
65
Vi=5V, Io=250mA
∗2
Conversion Efficiency
Conversion Efficiency
(Ta=25°C, Vi=5V)
90
80
70
60
50
40
Application Circuit
30
20
10
0
Pin No.
Function
Input terminal (5V)
Input terminal (5V)
Not used
BP5324A
1
2
3
4
0
0.05 0.1 0.15 0.2 0.25 0.3 0.35
Output Current Io(A)
Input terminal (0V)
Input terminal (0V)
Not used
1
2
4
5
8
10 11 12
5
6
F1
Vo
7
Not used
8
Output GND terminal
Not used
9
VI
C1
10
11
12
Capacitor connect
Output terminal
Output terminal
C2
C3
C4
Use a fuse for safety.
Please verify operation and characteristics in the customer's circuit before actual usage.
Ensure that the load current does not exceed the maximum rating.
External Components Settings
F1: Fuse
Use a 2.5A fuse
C1: Input Capacitor
Capacitance : 100 to 220µF Rated voltage : 16V or higher .
C2: Output Capacitor
C3: Output Capacitor
Capacitance : 100µF, Rated voltage : 25V or higher.
Capacitance : 100 to 470µ, Rated Voltage : 25V or higher.
C4: Noise Reduction Capacitor Capacitance : 4700 to 0.1µF, Rated Voltage : AC500V or higher.
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2010.01 - Rev.A
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