ROHM BP5048_10

Data Sheet
220VAC Input/12VDC (300mA) Output
Non-Isolated AC/DC Converter
BP5048
Absolute Maximum Ratings
Unit
358
300
2
−20 to +80
−25 to +105
V
mApk
kV
°C
°C
9.2MAX.
35.0MAX.
Mark Side
Limits
22.0MAX.
Symbol
Vi
Iomax
Vsurge
Topr
Tstg
1
4±1.0
Parameter
Input voltage
Maximum output current
ESD endurance
Operating temperature range
Storage temperature range
Dimensions (Unit : mm)
3
5
5 . 0 8 0 . 5 ±0 . 1
3.6MAX
7
10
12
7.62
0 . 2 5 ±0 . 0 5
1 . 3 ±0 . 2
4.85MAX.
4.35MAX.
2.54�11=27.94
Electrical Characteristics
Conditions
DC
Vi=311V, Io=100mA
Vi=311V
∗1
Vi=249 to 358V, Io=100mA
Vi=311V, Io=0 to 100mA
Vi=311V, Io=100mA
∗2
Vi=311V, Io=300mA
∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2 Spike noise is not included in output ripple voltage.
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Please note that the input
side is at Pin 12.
12
10
7
5
3
1
FUSE
D1
Vi ∼
R1
ZNR +
C1
C3
Io
L1
1mH
+
−
−
C2
Function
Output terminal Vo(12V)
Skip
Choke coil connect
Skip
Choke coil connect
Skip
COMMON
Skip
Skip
N.C.
Skip
Input terminal Vi(311VDC)
Vo
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 Component Specifications
FUSE: FUSE
C1: Input capacitor
Use a fuse of 1A.
C2: Output capacitor
Rated voltage 25V or higher, 100 to 470µF
Low impedance type
Impedance is 0.4Ω max at high frequencies.
Evaluate under actual operating conditions.
Rated voltage 450V or higher 22 to 820µF
Permissible ripple current 0.13Arms or higher
C3: Noise removal capacitor Rated voltage 450V or higher 0.1 to 0.22µF
Film or ceramic capacitor
Evaluate under actual operating conditions.
L1: Power inductor
D1: Rectifier diode
R1: Noise removal resistor
ZNR: Varistor
Derating Curve
350
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
Application Circuit
BP5048
Derating Curve
Output Current Io (mA)
Unit
V
V
mA
V
V
Vp-p
%
Inductance = 1.0mH
Permissible current value 600mA or higher
Recommended part : C13-FR-GA (MITSUMI)
or TSL3135S-102JR78 (TDK)
A reverse surge voltage 600V or higher
An average rectifying current of 0.5A
The forward surge current should be 20A or higher.
Conversion Efficiency (%)
Max.
358
13.0
300
0.20
0.20
0.15
−
100
90
80
70
60
50
40
30
20
10
0
Conversion Efficiency
(Ta=25°C, Vi=311V)
0
50
100 150 200 250
Output Current Io (mA)
300
Load Regulation
Output Voltage Vo (V)
Typ.
311
12.0
−
0.05
0.05
0.07
78
13.0
12.8
12.6
12.4
12.2
12.0
11.8
11.6
11.4
11.2
0
Load Regulation
(Ta=25°C, Vi=311V)
50
100 150 200 250
Output Current Io (mA)
300
Surface Temperature Increase
Temperature Rising ∆T (°C)
Symbol Min.
Parameter
Input voltage range
249
Vi
Output voltage
11.0
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
100 150 200 250
Output Current Io (mA)
300
10 to 22Ω 1/4W
Determine the ideal value through actual testing.
A varistor is required to protect against lightning surges and
static electricity.
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