BP5045A_10 Datasheet, PDF (1/4 Pages) Rohm – Non-Isolated AC/DC Converter

Data Sheet
220VAC Input/−12VDC (200mA) Output
Non-Isolated AC/DC Converter
BP5045A
Absolute Maximum Ratings
Parameter
Input voltage
Output current
ESD endurance
Operating temperature range
Storage temperature range
Symbol
Vi
Io
Vsurge
Topr
Tstg
Limits
−390
200
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 −113 −311 −390 V DC
Output voltage
Vo −11.5 −12.2 −12.9 V Vi= −311V, Io=200mA
Output current
Io
−
− 200 mApk Vi= −311V
∗1
Line regulation
Vr
− 0.07 0.15 V Vi= −113 to −390V, Io=200mA
Load regulation
Vl
− 0.10 0.15 V Vi= −311V, Io=0 to 200mA
Output ripple voltage Vp
− 0.15 0.20 Vp-p Vi= −311V, Io=200mA ∗2
Power conversion efficiency η
72 75
−
% Vi= −311V, Io=200mA
∗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
BP5045A
~
Vi
D1
R1
ZNR
−
+
C1
1
FUSE
C3
4 6 8 10
L1
− ^C2
+
Pin No.
Function
1 Input
2 Skip
3 Skip
4 Common
5 Skip
6 Power inductor
7 Skip
8 Power inductor
9 Skip
10 Output
Vo
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.
External Component Specifications
FUSE: FUSE
Use a fast-acting fuse of 1.0A.
C1: Input capacitor
C2: Output capacitor
Rated voltage : More than 450V
Capacitance : 22 to 100µF
Rated voltage : More than 35V
Capacitance : 220 to 470µF, low impedance type
ESR : Less than 0.16Ω
Rated ripple current : More than 0.58Arms
Evaluate under actual operating conditions since output ripple
voltage is affected.
C3: Noise removal capacitor Rated voltage : More than 450V
Film or ceramic capacitor
Capacitance : 0.1 to 0.22µF
L1: Choke coil
Inductance : 820µH
Rated current : More than 0.42A
R1: Noise removal resistor Resistance : 10 to 22Ω
Power : More than 1/4W
D1: Rectifier diode
Peak reverse voltage : More than 800V
Mean rectifying current : More than 1.0A
Peak forward surge current : More than 20A
Full-wave rectification can be used.
ZNR: Varistor
A varistor is required to protect against lightning surges and
static electricity.
www.rohm.com
©2010 ROHM Co., Ltd. All rights reserved.
1/1
Dimensions (Unit : mm)
28.2MAX.
10.1MAX.
3.25MAX
0 . 2 5+− 0 . 0 5
1
4 6 8 10
0 . 5 +− 0 . 1
1 . 3+− 0 . 2
P = 5 . 0 8+− 0 . 2 ^(4.55)
2.54⁺ 9=22.86(Typ.)
(5.55)
Derating Curve
Derating Curve
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
Conversion Efficiency
(Ta=25 C, Vi=-311V)
90
80
70
60
50
40
30
20
10
0
0
50
100 150 200
Output Current Io(mA)
Load Regulation
Load Regulation
14
(Ta=25 C, Vi=-311V)
12
10
8
6
4
2
0
0 50 100 150 200 250 300 350
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
Output Current Io(mA)
Switching Frequency
Switching Frequency
(Ta=25 C, Vi=-311V)
25
20
15
10
5
0
0
50
100
150 200
Output Current Io(mA)
2010.01 - Rev.A