Data Sheet
220VAC Input/−12VDC (250mA) Output
Non-Isolated AC/DC Converter
BP5055-12
Absolute Maximum Ratings
Dimensions (Unit : mm)
9.9MAX.
28.2MAX.
Parameter
Input voltage
Symbol
Vi
Limits
−600
Unit
V
Conditions
DC
Operating temperature range
Storage temperature range
−20 to 80
−25 to 105
C
Topr
Tstg
Refer to derating curve
C
Ambient temperature +
Tcmax
Case temperature
Output current
105
C
the module self-heating Tcmax
PEAK value of current (Vi= to −420V)
PEAK value of current (Vi=−420 to−600V)
+
0.5 0.1
+
3.25MAX.
0.25 0.05
+
1.3 0.2
5.55MAX.
+
P=5.08 0.2
250
130
Iomax 1
Iomax 2
mA
mA
4.35MAX.
2.54x9=22.86TYP.
Derating Curve
Electrical Characteristics
(Unless otherwise specified Ta=25°C, Vi=−311V, IO=250mA)
Derating Curve
300
250
200
150
100
50
Conditions
Parameter
Input voltage range
Output voltage
Symbol Min.
Typ.
Max.
Unit
V
Vi=−240V to −420V
Vi=−420V to −600V
−240 −311 −600
−12.0
V
−12.7 −13.4
mA
mA
V
Output current1
Output current2
Line regulation
250
130
0.25
0.20
0.20
lo1
lo2
Vi=−240V to −420V
Vi=−420V to −600V
Vi=−240V to −600V lo=130mA
lo=0 to 250mA
0
-20 -10
0
10 20 30 40 50 60 70 80 90
Ambient Temperature Ta( C)
0.07
0.05
0.08
77
Load regulation
Output ripple voltage
Conversion efficiency
V
Conversion Efficiency
Vp-p
%
Conversion Efficiency
70
(Ta=25 C, Vi=-311V)
100
90
80
70
60
50
40
Application Circuit
Pin No.
1
2
3
4
5
6
7
8
Function
Input terminal : Vi(-311VDC)
30
20
10
0
Skip
Skip
BP5055-12
COMMON
0
50
100
150
200
250
1
4
6
8
10
Skip
Output Current Io(mA)
Power inductor terminal
Skip
Power inductor terminal
Skip
D2
R1
FUSE
Load Regulation
9
10
A
Output terminal : Vo(-12.7VDC)
C1
C2
L1
+
+
ZNR
C4
~
Vo
D1
C3
V
−13.5
−13.3
−13.1
−12.9
−12.7
−12.5
−12.3
−12.1
−11.9
−11.7
−11.5
Vi
+
Be sure to use 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.
−200 −250 −300 −350 −400 −450 −500 −550 −600 −650
External Component Specifications
Input Voltage Vi(V)
FUSE: fuse
Use a quick-acting fuse (1A)
C1, C2: Input capacitor
above 450V, 22 to 100µF
Surface Temperature Increase
Ripple current 0.7Arms or greater
C3: Output capacitor
Surface Temperature Increase
above 30V, 220 to 1000µF, low impedance
ESR:0.18Ω Max.
Ripple current 0.65Arms or higher
Capacitor impedance affects the output ripple voltage.
40
35
30
25
20
15
10
5
C4: Noise reduction
capacitor
Above 600V, 0.1 to 0.22µF
Film or ceramic capacitor. Evaluate under actual operating conditions.
L1: Power inductor
Inductance:1.0mH, Rating current: above 0.74A
Select components that do not easily get magnetically saturated at high temperature.
Recommended part : C13-FR 1.0mH (MITSUMI)
0
0
50
100
150
200
250
Output Current Io(mA)
D1: Flywheel diode
Above 1000V, current: above 1.0A
Fast recovery diode
Please note that both the switching and efficiency characteristics of the module are affected by this diode.
Recommended products: UF4007 (VISHAY)
D2: Rectifier diode
Use a rectifying diode with a peak reverse voltage of 1kV or higher, an average rectification current of 1A or larger and a peak surge
current of 20A or larger. When using a large capacitance input capacitor, select a component that endures the is strong
against inrush current during power up. Full-wave rectification can be used.
10 to 22Ω, 1W
R1: Noise reduction resistor
ZNR: Varistor
Determine the ideal value through actual testing.
A varistor is required to protect against lightning surges and static electricity.
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©2010 ROHM Co., Ltd. All rights reserved.
2010.01 - Rev.A
1/1
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