ROHM BP5037B12

Data Sheet
100VAC Input/12VDC (200mA) Output
Non-Isolated AC/DC Converter
BP5037B12
Dimensions (Unit : mm)
Limits
Unit
Vi
Iomax
Vsurge
Topr
Tstg
Tcmax
170
200
2
−25 to +80
−25 to +105
105
V
mApk
kV
°C
°C
°C
9.0MAX.
28.2MAX.
Mark Side
Symbol
16.8MAX.
Parameter
Input voltage
Maximum Output current
ESD endurance
Operating temperature range
Storage temperature range
Maximum surface temperature
1
4±1.0
Absolute Maximum Ratings
3
5.08
5
7
10
7.62
0 . 5 ±0 . 1
0 . 2 5 ±0 . 0 5
1 . 3 ±0 . 2
3.3MAX
5.05MAX.
3.95MAX.
(2.54�9=)22.86 TYP.
Electrical Characteristics
∗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
BP5037B12
Please note that pin No.10
side is input.
10
R1
D1
1SR35−400 10Ω1/4W
Input
AC100V
50Hz/60Hz
ZNR
+
220V −
C1
22µF/200V
7
5
3
1
FUSE
1A
C2
0.1µF
Output
L1
820µH
+
−
Pin No.
1
2
3
4
5
6
7
8
9
10
Function
Output terminal Vo(12V)
Not used
Choke coil connect
Not used
Choke coil connect
Not used
COMMON
Not used
Not used
Input terminal Vi(141VDC)
+12V
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=141V)
100
90
80
70
60
50
40
30
20
10
0
0 20 40 60 80 100 120 140 160 180 200
Output Current Io(mA)
Load Regulation
Load Regulation
(Ta=25°C, Vi=141V)
14
330µF/25V
Please verify operation and characteristics in the customer's circuit before actual usage.
Ensure that the load current does not exceed the maximum rating.
12
10
8
6
4
2
0
0
External Component Specifications
Use a quick-acting fuse of 1A
FUSE: Fuse
C1: Input smoothing
capacitor
Capacitance : 22 to 100µF Rated voltage : 200V or higher
Ripple current is 0.13Arms or above.
C2: Noise reduction
capacitor
Capacitance : 0.1 to 0.22µF Rated voltage : 200V or higher
Use a film or ceramic capacitor. Evaluate under actual operating
conditions.
Capacitance : 100 to 470µF Rated voltage : 25V or higher,
ESR is 0.25Ω max. Ripple current is 0.4Arms or above.
Evaluate under actual conditions.
D1: Rectifier diode
In the absolute maximum ratings, the reverse peak voltage should be
400V or higher, the average rectifying current should be 0.5A or higher,
and the peak surge current should be 20A or higher.
(Full-wave rectification can be used)
L1: Choke coil
Coil for switching regulator. The inductance should be 820µH,
the rated direct current should be 0.42A or above
in order to prevent excessive heat generation or oscillation.
R1: Noise reduction
resistor
10 to 22Ω 1/4W
The ideal value can be determined through actual testing.
ZNR: Varistor
A varistor must be used to protect against lightning surges and static electricity.
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Derating Curve
300
C3
Be sure to use fuse for safety.
C3: Output smoothing
capacitor
Derating Curve
Output Current Io (mA)
141
12.0
−
0.05
0.07
0.05
78
Conditions
DC(80 to 120VAC)
Vi=141V, Io=100mA
Vi=141V
∗1
Vi=113 to 170V, Io=100mA
Vi=141V, Io=0 to 100mA
Vi=141V, Io=100mA ∗2
Vi=141V, Io=200mA
Unit
V
V
mA
V
V
Vp-p
%
Conversion Efficiency (%)
Max.
170
13.0
200
0.15
0.20
0.15
−
Output Voltage Vo(V)
Typ.
1/1
50 100 150 200 250
Output Current Io(mA)
300
Surface Temperature Increase
Temperature Rising ∆T(°C)
Symbol Min.
Parameter
Input voltage range
113
Vi
Output voltage
11.0
Vo
Output current
0
Io
Line regulation
−
Vr
Load regulation
−
Vl
Output ripple voltage
−
Vp
Power conversion efficiency
70
η
Surface Temperature Increase
(Ta=25°C, Vi=141V)
50
40
30
20
10
0
0
50
100
150
Output Current Io(mA)
200
2010.01 - Rev.A
Notice
Notes
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R1010A