Data Sheet
12V/250mA Output
Isolated DC/DC Converter
BP5324A
Absolute Maximum Ratings
Parameter
Input voltage
Maximum output current
Operating temperature range
Storage temperature range
Isolation voltage
Symbol
Vi
Iopeak
Topr
Tstg
V
ISO
Limits
7
250
−25
to +80
−25
to +85
500
Unit
V
mA
°C
°C
Vrms
Dimensions (Unit :
mm
)
38.5Max.
13.6Max.
Mark Side
4.0±1.0
27.0Max.
1 2
4 5
3.25Max.
P=2.54±0.2
8
10 11 12
0.5±0.1
1.3±0.2
4.55Max.
0.25±0.05
9.05Max.
2.54x11=27.94
Electrical Characteristics
Symbol Min.
4.5
Vi
Input voltage range
11.4
Vo
Output voltage
0
Io
Output current
−
VL
Line regulation
−
VR
Load regulation
−
Vp
Output ripple voltage
65
η
Power conversion efficiency
Parameter
Typ.
5.0
12.0
−
0.01
0.23
0.03
74
Max.
5.5
12.6
250
0.05
0.5
0.15
−
Unit
V
V
mA
V
V
Vpp
%
(Ta=25°C)
Conditions
Vi=5V, Io=250mA
∗1
Vi=5V
Vi=4.5 to 5.5V, Io=200mA
Vi=5V, Io=0 to 250mA
∗2
Vi=5V, Io=250mA
Vi=5V, Io=250mA
∗2
Derating Curve
Derating Curve
Output Current Io(mA)
300
250
200
150
100
50
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(
°C
)
Operation Range
∗1
Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2
Please refer to Load regulation, Conversion efficiency.
Conversion Efficiency
90
80
70
60
50
40
30
20
10
0
0
Conversion Efficiency
η(%)
Conversion Efficiency
(Ta=25
°C
, Vi=5V)
Application Circuit
BP5324A
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Function
Input terminal (5V)
Input terminal (5V)
Not used
Input terminal (0V)
Input terminal (0V)
Not used
Not used
Output GND terminal
Not used
Capacitor connect
Output terminal
Output terminal
0.05 0.1 0.15 0.2 0.25 0.3 0.35
Output Current Io(A)
F1
1 2
4 5
8
10 11 12
Vo
V
I
C1
C2
C4
C3
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
C1: Input Capacitor
C2: Output Capacitor
C3: Output Capacitor
C4: Noise Reduction Capacitor
Use a 2.5A fuse
Capacitance : 100 to 220µF Rated voltage : 16V or higher .
Capacitance : 100µF, Rated voltage : 25V or higher.
Capacitance : 100 to 470µ, Rated Voltage : 25V or higher.
Capacitance : 4700 to 0.1µF, Rated Voltage : AC500V or higher.
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