BP5048_10 Datasheet, PDF (1/4 Pages) Rohm – Non-Isolated AC/DC Converter

Data Sheet
220VAC Input/12VDC (300mA) Output
Non-Isolated AC/DC Converter
BP5048
Absolute Maximum Ratings
Parameter
Input voltage
Maximum output current
ESD endurance
Operating temperature range
Storage temperature range
Symbol
Vi
Iomax
Vsurge
Topr
Tstg
Limits
358
300
2
−20 to +80
−25 to +105
Unit
V
mApk
kV
°C
°C
Electrical Characteristics
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Input voltage range
Vi 249 311 358 V DC
Output voltage
Vo 11.0 12.0 13.0 V Vi=311V, Io=100mA
Output current
Io
0
− 300 mA Vi=311V
∗1
Line regulation
Vr −0.20 0.05 0.20 V Vi=249 to 358V, Io=100mA
Load regulation
Vl −0.20 0.05 0.20 V Vi=311V, Io=0 to 100mA
Output ripple voltage Vp
−
0.07 0.15 Vp-p Vi=311V, Io=100mA _∗2
Power conversion efficiency η
65
78
−
% 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.
Application Circuit
BP5048
Please note that the input
side is at Pin 12.
Vi ^∼
D1
ZNR +
−
12 10
FUSE
R1
C3
C1
7 531
Io
L1
1mH ₊ C2
−
Pin No.
Function
1 Output terminal Vo(12V)
2 Skip
3 Choke coil connect
4 Skip
5 Choke coil connect
6 Skip
7 COMMON
8 Skip
9 Skip
10 N.C.
11 Skip
12 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
Use a fuse of 1A.
C1: Input capacitor
Rated voltage 450V or higher 22 to 820µF
Permissible ripple current 0.13Arms or higher
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.
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
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.
R1: Noise removal resistor
ZNR: Varistor
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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1/1
Dimensions (Unit : mm)
35.0MAX.
9.2MAX.
3.6MAX
13 5 7
10 12
5 . 0 8 ^{0 . 5 ±0 . 1}
7.62
1 . 3 ±0 . 2
2.54�11=27.94
0 . 2 5 ±0 . 0 5
4.85MAX.
4.35MAX.
Derating Curve
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
100
90
80
70
60
50
40
30
20
10
0
0
Conversion Efficiency
(Ta=25°C, Vi=311V)
50 100 150 200 250 300
Output Current Io (mA)
Load Regulation
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)
50 100 150 200 250 300
Output Current Io (mA)
Surface Temperature Increase
Surface Temperature Increase
(Ta=25°C, Vi=311V)
40
35
30
25
20
15
10
5
0
0 50 100 150 200 250 300
Output Current Io (mA)
2010.01 - Rev.A