BP5038A Datasheet, PDF (1/3 Pages) Rohm – AC/DC converter AC100V input, 12V/30mA output

AC/DC converter
AC100V input, 12V/30mA output
BP5038A
Absolute Maximum Ratings
Parameter
Input voltage
Output current
ESD endurance
Operating temperature range
Storage temperature range
Symbol
Vi
Io
Vsurge
Topr
Tstg
Limits
170
30
2
−20 to +80
−20 to +85
Unit
V
mApk
kV
°C
°C
Dimensions (Unit : mm)
18.0MAX.
9.1MAX.
3.3MAX
1
456
1 . 3 ±0 . 2
0 . 5 ±0 . 1
2.54×5=12.7
P = 2 . 5 4 ±0 . 2
0 . 2 5 ±0 . 0 5
3.0MAX.
6.1MAX.
Electrical Characteristics
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Input voltage range
Vi 113 141 170
V DC(80 to 120VAC)
Output voltage
Vo 11.0 12 13.0 V Vi=141V, Io=30mA
Output current
Line regulation
Io
0
−
30 mA Vi=141V
∗1
Vr
− 0.17 0.3
V Vi=113 to 170V, Io=30mA
Load regulation
Vl
− 0.19 0.3
V Vi=141V, Io=0 to 30mA _∗2
Output ripple voltage Vp
−
0.05 0.15 Vp-p Vi=141V, Io=30mA
Power conversion efficiency η
40
50
−
% Vi=141V, Io=30mA _∗2
∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2 Please refer to Load regulation, Conversion efficiency.
Application circuit
BP5038A
Pin No.
Function
1 Input terminal Vi(141VDC)
2 Skip
3 Skip
4 COMMON
5 COMMON
6 Output terminal Vo(12V)
1
456
FUSE
D1
R1
0.5A
1SR35−400A 10Ω1/4W
Output
+12V
Input
AC100V
50Hz/60Hz
ZNR + _C1
C2
220V − _10µF/200V 0.1µF
+ ^C3
− 100µF/50V
Be sure to use fuse for safety.
For actual usage, Please kindly evaluate and confirm our part mounted in your product,
Especially, Please make sure to confirm whether the load current exceed Max. rated current
by using the current probe.
External components setting
FUSE: Fuse
C1: Capacitor for input
voltage smoothing
C2: For noise terminal
voltage reduction
C3: Capacitor for Output
voltage smoothing
D1: Rectifier diode
R1: For noise terminal
voltage reduction
ZNR: Varistor
Please make sure to use fuse 0.5A
Capacitance : 3.3µF to 22µF
Rated voltage : 250V or higher
Capacitance : 0.1µF to 0.22µF Rated voltage : 250V or higher
Film capacitor or ceramic capacitor. Reduce the noise terminal voltage.
The constant value should be evaluated in the set.
Capacitance : 100µF to 470µF Rated voltage : 25V or higher, Low impedance part
Impedance is 0.39Ω max at high frequency range.
Ripple current is 0.1Arms above.
Impedance of capacitor affects the output ripple voltage.
In the absolute maximum ratings, the reverse surge voltage should be
400V or higher, the average rectifying current should be 0.5A or higher,
and the forward surge current should be 20A or higher.
10Ω to 22Ω, 1/4W
Reduce the noise terminal voltage. The constant value should be evaluated
in set.
Varistor must be used. It protects this part from lightning surge and static
electricity.
Derating Curve
Derating Curve
40
35
30
25
20
15
Operation Range
10
5
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(°C)
Switching Frequency
140
120
100
80
60
40
20
0
0
Switching Frequency
(Ta=25°C, Vi=141V)
5 10 15 20 25 30
Output Current Io(mA)
Conversion Efficiency
Conversion Efficiency
(Ta=25°C, Vi=141V)
60
50
40
40% Min−Line
30
20
10
0
0 5 10 15 20 25 30
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
11.0
0
Load Regulation
(Ta=25°C, Vi=141V)
5 10 15 20 25 30
Output Current Io(mA)
Surface temperature Rising
Surface Temperature Rising
(Ta=25°C, Vi=141V)
40
30
20
10
0
0 5 10 15 20 25 30
Output Current Io(mA)
Rev.A