ROHM BP5048

Data Sheet
220VAC Input/24VDC (200mA) Output
Non-Isolated AC/DC Converter
BP5048-24
Absolute Maximum Ratings
9.2MAX.
35.0MAX.
Mark Side
Limits
358
200
2
105
−20 to +80
−25 to +105
22.0MAX.
Symbol
Vcc
IoMAX
Vsurge
TcMAX
Topr
Tstg
1
4±1.0
Parameter
Input voltage
Maximum Output current
ESD endurance
Maximum surface temperature
Operating temperature range
Storage temperature range
Dimensions (Unit : mm)
Unit
V
mApk
kV
°C
°C
°C
3
5
0.5±0.1
5.08
3.6MAX.
7
10
12
0.25±0.05
7.62
4.85MAX.
1.3±0.2
2.54�11=27.94
4.35MAX.
Electrical Characteristics
Conditions
DC
Vi=311V, Io=100mA
Vi=311V
∗1
Vi=249 to 358V, Io=100mA
Vi=311V, Io=0 to 100mA ∗2
Vi=311V, Io=100mA
Vi=311V, Io=200mA
∗2
∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curves.
∗2 Please refer to Load regulation, Conversion efficiency.
Application Circuit
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
BP5048-24
Be sure to use fuse for safety.
12 10
DC motor
Ii
R1
D1
+
Vi
ZNR
−
C1
7 5 3 1
FUSE
Io
C3
L1 +
1.5mH
−
C2
Function
Output terminal Vo(24V)
Skip
Choke coil connect
Skip
Choke coil connect
Skip
COMMON
Skip
Skip
N.C.
Skip
Input terminal Vi(311VDC)
External Component Specifications
FUSE: Fuse
Use a fuse of 1A.
C1: Input capacitor
Rated voltage 400V or higher, 22 to 820µF
Permissible ripple current 0.13Arms or higher
C2: Output capacitor
Rated voltage 35V or higher 100 to 470µF
Low impedance type
Impedance is 0.4Ω max at high frequencies.
Permissible ripple current 0.25Arms or higher
Evaluate under actual operating conditions.
C3: Noise removal capacitor
Rated voltage 400V or higher 0.1 to 0.22µF
Film or ceramic capacitor
Evaluate under actual operating conditions.
L1: Power inductor
Inductance = 1.5mH
Permissible current value 450mA or higher
D1: Rectifier diode
A reverse surge voltage 800V or higher
An average rectifying current of 0.5A
The forward surge current should be 20A or higher
R1: Noise removal resistor
10 to 22Ω 1/4W
Determine the ideal value through actual testing.
ZNR: Varistor
A varistor is required to protect against lightning surges and static
electricity.
1/1
Derating Curve
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
100
90
80
70
60
50
40
30
20
10
0
0
Conversion Efficiency
(Ta=25°C, Vi=311V)
50
100
150
Output Current Io (mA)
200
Load Regulation
Vo
Please verify operation and characteristics in the customer's circuit before actual usage.
Ensure that the load current does not exceed the maximum rating.
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Derating Curve
Output Current Io (mA)
Unit
V
V
mA
V
V
Vp-p
%
Conversion Efficiency η (%)
Max.
358
25.8
200
0.20
0.20
0.15
−
Output Voltage Vo (V)
Typ.
311
24.0
−
0.05
0.05
0.07
78
25.0
24.8
24.6
24.4
24.2
24.0
23.8
23.6
23.4
23.2
23.0
Load Regulation
(Ta=25°C, Vi=311V)
0
50
100
150
Output Current Io (mA)
200
Surface Temperature Increase
Temperature Rising ∆T (°C)
Symbol Min.
Parameter
Input voltage range
228
Vi
Output voltage
23.0
Vo
Output current
0
Io
Line regulation
−0.20
Vr
Load regulation
−0.20
Vl
Output ripple voltage
−
Vp
Power conversion efficiency
65
η
40
35
30
25
20
15
10
5
0
Surface Temperature Increase
(Ta=25°C, Vi=311V)
0
50
100
150
Output Current Io (mA)
200
2010.01 - Rev.A
Notice
Notes
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R1010A