BP5068A24AC/DC converter
Absolute Maximum Ratings
Input voltage
Output current
ESD endurance
Operating temperature range
Storage temperature range
Parameter Symbol Limits Unit
Vi
Io
Vsurge
Topr
Tstg
−90
0.8
2
−20 ∼ +80
−25 ∼ +105
V
Apk
kV
°C
°C
Unit
∗2
∗2
∗1
Conditions
V
V
A
V
V
Vp-p
%
DC(85∼115VAC)
Vi=−141V, Io=600mA
Vi=−141V
Vi=−120∼ −162V, Io=600mA
Vi=−141V, Io=0∼600mA
Vi=−141V, Io=600mA
Vi=−141V, Io=600mA
∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2 Please refer to Load regulation, Conversion effciency.
Electrical Characteristics
Input voltage range
Output voltage
Output current
Line regulation
Load regulation
Output ripple voltage
Power conversion effciency
Parameter Symbol Typ. Max.Min.
Vi
Vo
Io
Vr
Vl
Vp
η
−141
−24
−
0.23
0.55
0.11
88
−120
−22
0.6
0.48
0.75
0.20
−
−162
−26
0
−
−
−
82
Conversion Efficiency
Conversion Efficiency
100
90
80
70
60
50
40
30
20
10
0
2000 400 600100 300 500
(Ta=25°C, Vi=−141V)
Output Current Io(mA)
Con
v
e
rsion Efficiency
η
(%)
Surface Temperature Rising
Surface Temperature Rising
30
25
20
15
10
5
0
2000 400100 300 500 600
(Ta=25°C, Vi=−141V)
Output Current Io(mA)
T
emper
ature Rising
∆
T(
°
C
)
Application circuit
External components setting
FUSE: Fuse Please make sure to use quick acting fuse 2A
Capacitance : 47µF∼220µF Rated voltage : 200V or higher
Ripple current is 0.22Arms above.
C1: Capacitor for input
voltage smoothing
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.
C2: For noise terminal
voltage reduction
Capacitance : 330µF∼1000µF Rated voltage : 50V or higher,
ESR is 0.08Ω max. Ripple current is 1Arms above.
Output noise voltage is inflenced. Please evaluate it in the actual set.
C3: Capacitor for Output
voltage smooting
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).
D1: Flywheel diode
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.)
D2: Rectifier diode
1.0Ω∼2.2Ω 1/4W
Reduce the noise terminal voltage.The constant value should be evaluated
in set.
R1: For noise terminal
voltage reduction
Coil for switching regulator. The inductance should be 330µH,
the rated direct current should be 1.3A above. Otherwise heating or
abnormal oscilation occurs.
L1: Choke coil
Varistor must be used. It protects this part from lightning surge and static
electricity.
ZNR: Varistor
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.
BP5068A24
Be sure to use fuse for safety.
AC100V input, −24V/600mA output
Derating Curve
Derating Curve
Operation Range
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
010-30 -20 -10 20 4030 80706050 90
Ambient Temperature Ta(°C)
Output Current Io(A)
Please note that pin No.12
side is input.
−24V
Output
Input
470µF/50V
AC100V
50Hz/60Hz
0.1µF
C2
FUSE
2A
112 8 7 5 3
+
−
+
−
100µF/200V
C1
L1
D1
ZNR
220V
R1
2.2Ω1/4W
D1
1SR35-400A
C3
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Function
Output terminal Vo(−24V)
Not used
Coil connect
Not used
Coil Connect
Not used
COMMON
COMMON
Not used
N.C.
Not used
Input terminal Vi(−141VDC)
Dimension(Unit : mm)
21.5MAX.
4
±
1.0
34.5MAX.
2.54×11=27.94
1 3 5 7 8 10 12
0.5±0.1
P=2.54±0.2
1.3±0.2
3.25MAX
Mar
k Side
11.3MAX.
7.35MAX.
3.95MAX.
0.25±0.05
Load Regulation
Load Regulation
30
25
20
15
10
5
0
2000 400 600 900800100 300 500 700
(Ta=25°C, Vi=−141V)
Output Current Io(mA)
Output V
o
ltage
−
V
o
(V)
1/2