BP5324A_10 Datasheet, PDF (1/4 Pages) Rohm – Isolated DC/DC Converter

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
VISO
Limits
7
250
−25 to +80
−25 to +85
500
Unit
V
mA
°C
°C
Vrms
Electrical Characteristics
(Ta=25°C)
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Input voltage range
Vi
4.5 5.0 5.5
V
Output voltage
Vo 11.4 12.0 12.6 V Vi=5V, Io=250mA
Output current
Line regulation
Io
0
−
250 mA Vi=5V
∗1
VL
− _{0.01 0.05 V Vi=4.5 to 5.5V, Io=200mA}
Load regulation
VR
− _{0.23 0.5}
V Vi=5V, Io=0 to 250mA ∗2
Output ripple voltage Vp
− _0.03 0.15 Vpp Vi=5V, Io=250mA
Power conversion efficiency η
65 74
−
% 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 ^{1 2 4 5}
8 10 11 12
Vo
VI
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
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
Use a 2.5A fuse
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.
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 x 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, Vi=5V)
90
80
70
60
50
40
30
20
10
00 _{0.05 0.1 0.15 0.2 0.25 0.3 0.35}
Output Current Io(A)
www.rohm.com
©2010 ROHM Co., Ltd. All rights reserved.
1/1
2010.01 - Rev.A