BP5068A Datasheet, PDF (1/3 Pages) Rohm – AC100V input, −12V/800mA output

AC/DC converter
AC100V input, −12V/800mA output
BP5068A
Absolute Maximum Ratings
Parameter
Input voltage
Output current
ESD endurance
Operating temperature range
Storage temperature range
Symbol
Vi
Io
Vsurge
Topr
Tstg
Limits
−190
850
2
−20 ∼ +80
−25 ∼ +105
Unit
V
mApk
kV
°C
°C
Dimension(Unit : mm)
34.5MAX.
11.3MAX.
1 3 5 7 8 10 12
3.25MAX
0 . 5 ±0 . 1
1 . 3 ±0 . 2
P = 2 . 5 4 ±0 . 2
2.54×11=27.94
0 . 2 5 ±0 . 0 5
7.35MAX.
3.95MAX.
Electrical Characteristics
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Input voltage range
Vi −162 −141 −120 V DC(80∼120VAC)
Output voltage
Vo −13 −12 −11 V Vi=−141V, Io=800mA
Output current
Io
0
− 800 mA Vi=−141V
∗1
Line regulation
Vr
− 0.20 0.45 V Vi=−120∼ −162V, Io=800mA
Load regulation
Vl
− 0.50 0.75 V Vi=−141V, Io=0∼800mA ∗2
Output ripple voltage Vp
− 0.15 0.30 Vp-p Vi=−141V, Io=800mA
Power conversion effciency η
65
78
−
% Vi=−141V, Io=800mA _∗2
∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2 Please refer to Load regulation, Conversion effciency.
Application circuit
BP5068A
Please note that pin No.12
side is input.
12 10 8 7
FUSE
D2
R1
2A
1SR35-400A 2.2Ω1/4W
Input
AC100V
50Hz/60Hz
ZNR − _C1
220V ⁺ 100µF/200V
C2
0.1µF
Pin No.
Function
1 Output terminal Vo(−12V)
2 Not used
3 Coil connect
4 Not used
5 Coil connect
6 Not used
7 COMMON
8 COMMON
531
9 Not used
10 NC
11 Not used
Output ^{12 Input terminal Vi(−141VDC)}
−12V
L1 330µH
D1 ^{− C3}
+ _470µF/50V
Be sure to use fuse for safety.
For acutual 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 smooting
D1: Flywheel diode
D1: Rectifier diode
L1: Choke coil
R1: For noise terminal
voltage reduction
ZNR: Varistor
Please make sure to use quick acting fuse 2A
Capacitance : 47µF∼220µF Rated voltage : 200V or higher
Ripple current is 0.22Arms above.
Capacitance : 0.1µF∼0.22µF Rated voltage : 200V or higher
Film capacitor or ceramic capacitor. Reduce the noise terminal voltage.
The constant value should be evaluated in the set.
Capacitance : 330µF∼1000µF Rated voltage : 25V or higher,
ESR is 0.08Ω max. Ripple current is 1Arms above.
Output noise voltage is influenced.Please evaluate it in the actual set.
Please use the first recovery diode that reverse peak voltage is 400V or
higher, and the avarage rectifying current is 3A or higher.That switching
characteristic and efficiency of our module is influenced by this diode
characteristic, please use 31DF4(Nihon inter), or RV30(Sanken).
In the absolute maximum ratings, the reverse peak voltage should be
400V or higher, the average rectifying current should be 1A or higher,
and the peak surge current should be 20A or higher.
(Full-wave rectifier can be used in our part.)
Coil for switching regulator. The inductance should be 330µH,
the rated direct current should be 1.6A above.
Otherwise heating or abnormal oscilation occurs.
1Ω∼2.2Ω 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
900
800
700
600
500
400
Operation Range
300
200
100
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(°C)
Switching Frequency
Switching Frequency
(Ta=25°C, Vi=−141V)
50
40
30
20
10
0
0 100 200 300 400 500 600 700 800
Output Current Io(mA)
Conversion Efficiency
Conversion Efficiency
(Ta=25°C, Vi=−141V)
100
80
60
40
20
0
0 100 200 300 400 500 600 700 800
Output Current Io(mA)
Load Regulation
Load Regulation
(Ta=25°C, Vi=−141V)
13.0
12.5
12.0
11.5
11.0
0 100 200 300 400 500 600 700 800
Output Current Io(mA)
Surface Temperature Rising
Surface Temperature Rising
(Ta=25°C, Vi=−141V)
40
35
30
25
20
15
10
5
0
0 100 200 300 400 500 600 700 800
Output Current Io(mA)
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