BP5324A Datasheet, PDF (1/3 Pages) Rohm – Isolated DC/DC Converter

Isolated DC/DC Converter
12V/250mA output type
BP5324A
Absolute Maximum Ratings
Parameter
Input voltage
Maximum output current
Operating temperature range
Storage temperature range
Isolation voltage
Symbol
VIN
Iopeak
Topr
Tstg
VISO
Limits
7
250
−25 to +80
−25 to +85
500
Unit
V
mA
°C
°C
Vrms
Electrical Characteristics
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Input voltage range
VIN
Output voltage
Vo
Output current
Io
Line regulation
VL
Load regulation
VR
Output ripple voltage Vp
Power conversion efficiency η
4.5
11.4
0
−
−
−
65
5.0
12.0
−
0.01
0.23
0.03
74
5.5
12.6
250
0.05
0.5
0.15
−
V
V VIN=5V, Io=250mA
mA VIN=5V
∗1
V VIN=4.5 to 5.5V, Io=200mA
V VIN=5V, Io=0 to 250mA ∗2
Vpp VIN=5V, Io=250mA
% VIN=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
BP5324A
F1 ^{1 2 4 5}
8 10 11 12
Vo
VIN
C1
C2
C3
C4
Use a fuse for safety.
Pin No.
Function
1 Input terminal (5V)
2 Input terminal (5V)
3 Not used
4 Input terminal (0V)
5 Input terminal (0V)
6 Not used
7 Not used
8 Output GND terminal
9 Not used
10 Capacitor connect
11 Output terminal
12 Output terminal
Be sure to evaluate it under the condition that it is mounted by your product.
Especially, confirm whether output current never exceeds a maximum rating
with current probe.
External Components Settings
F1 : Fuse
C1: Input Capacitor
Use a 2.5A fuse
Capacitance : 100µF to 220µF Rated voltage : 16V or higher .
C2: Output Capacitor
Capacitance : 100µF, Rated voltage : 25V or higher.
C3: Output Capacitor
Capacitance : 100µF to 470µ, Rated Voltage : 25V or higher.
C4: Noise Reduction Capacitor Capacitance : 4700pF to 0.1µF, Rated Voltage : AC500V or higher.
Dimensions (Unit : mm)
38.5Max.
13.6Max.
1 2 45
3.25Max.
P=2.54±0.2
8 10 11 12
0.5±0.1
1.3±0.2
2.54×11=27.94
4.55Max.
0.25±0.05
9.05Max.
Derating Curve
Derating Curve
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
(Ta=25°C, Vin=5V)
90
80
70
60
50
40
30
20
10
0
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35
Output Current Io(A)
Rev.A