ROHM BP5324A

Data Sheet
12V/250mA Output
Isolated DC/DC Converter
BP5324A
Absolute Maximum Ratings
Unit
V
mA
°C
°C
Vrms
38.5Max.
13.6Max.
Mark Side
Limits
7
250
−25 to +80
−25 to +85
500
27.0Max.
Symbol
Vi
Iopeak
Topr
Tstg
VISO
4.0±1.0
Parameter
Input voltage
Maximum output current
Operating temperature range
Storage temperature range
Isolation voltage
Dimensions (Unit : mm)
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
(Ta=25°C)
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
%
Conditions
Derating Curve
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
∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2 Please refer to Load regulation, Conversion efficiency.
Application Circuit
BP5324A
F1
VI
1 2
4 5
8
Vo
C1
Use a fuse for safety.
10 11 12
C2
C3
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Derating Curve
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
Output Current Io(mA)
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
300
250
200
150
Operation Range
100
50
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(°C)
Conversion Efficiency
Conversion Efficiency η(%)
Parameter
90
80
70
60
50
40
30
20
10
0
0
Conversion Efficiency
(Ta=25°C, Vi=5V)
0.05 0.1 0.15 0.2 0.25 0.3 0.35
Output Current Io(A)
C4
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
Capacitance : 100µF, Rated voltage : 25V or higher.
C3: Output Capacitor
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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R1010A