Data Sheet
100-230VAC Input/24W Output
Isolated AC/DC Converter
BP5729
Absolute Maximum Ratings
Dimensions (Unit : mm)
−25 to +80
−30 to +105
°C
°C
(Unless otherwise noted, Vi=311V, rated load Ta=25°C)
Symbol
Vo
Io
Min.
11.4
0
Typ.
12.0
−
Max.
12.6
2000
Unit
V
mA
Vr
VI
Vp
η
−
−
−
82
13
20
0.16
90
200
200
0.5
−
mV
mV
Vp-p
%
Conditions
Io=2000mA
Refer to derating curve
Vi=120 to 372V DC
Io=1000mA
Io=50 to 2000mA
∗
Io=2000mA
∗ Pulse noise is not included.
Sample Application Circuit
C8
D3
Be sure to use fuse for safety.
F1
FL1
R2
D4
ZNR
+
C5
C2
C7
R3
D2
C1
C3
R4
+
C4
R1
10
8
7
Pin
No.
1
6
3
2
Name
PC
1
2
Vo
Function
This is the secondary side output voltage
control terminal. Insert the output
smoothing capacitor between GND.
GND
This is the GND terminal for the secondary side.
6
ZCD
This is the zero current control terminal.
7
8
10
Vcc
Vi(-)
VH
This is the internal circuit power supply terminal.
This is the primary side input minus terminal.
This is the start teminal.
VD
This is the built-in FET of drain terminal.
The primary coil minus side of the
external transformer, and the snubber
circuit for noise reduction are connected
to this.
12
BP5729
C8:
D1:
D2:
D3:
D4:
R1:
R2:
R3:
R4:
T1:
F1:
FL1:
ZNR:
Noise reduction capacitor
Rectifier diode
Rectifier diode
Rectifier diode
Diode bridge
Resistor
Resistor
Output voltage setting resistor
Resistor
Switching transformer
Fuse
AC line filter
Varistor
Limiting element voltage AC250V or higher, 0.1 to 0.22µF
33µF / 450V General purpose type
10µF / 50V Low impedance type
2200pF / 630V
Use if necessary
1000µF / 35V x 2 Low impedance type
Rated ripple current 4.5Arms or higher ESR 18mΩ or below
2200pF / AC250V
FRD 200V / 0.5A
800V / 0.5A
60V / 20A
800V / 1A
47kΩ ±1% 0.1W
100kΩ ±5% 3W Limiting element voltage 300V or higher
68kΩ ±1% 0.1W
910Ω ±1% 0.1W
Be sure to use this for safety
A varistor is required to protect against lightning surges and static
electricity.
Usage Precautions
This product has built-in over current (reset type) and over voltage (latch type) protection functions to prevent
destruction due to surges. Discontinue operation if protection circuits are continuously active.
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2.25MAX.
7.05MAX.
21
Vi=248V to 372V
18
15
12
9
Vi=120V to 248V
6
3
0
-30-20-10 0 10 20 30 40 50 60 70 80 90 100
Ambient Current Ta(°C)
Switching Freguency
(Ta=25°C)
120
100
Burst Switching
Vi=311V
80
Vi=141V
60
40
Burst Switching
20
0
200 400 600
800 1000 1200 1400 1600 1800 2000
1/1
Conversion Efficiency
(Ta=25°C)
This is the secondary side
opto-coupler current control terminal.
3
External Components Specifications
C1,C2: Noise reduction capacitors
Input smoothing capacitor
C3:
Vcc smoothing capacitor
C4:
Noise reduction capacitor
C5:
Quasi-resonance capacitor
C6:
Output smoothing capacitor
C7:
0.25±0.05
12
Output Current Io(mA)
T1
12
10
24
D1
C6
8
0.5±0.1
1.3±0.2
27
0
+
7
Derating Curve
Conversion Efficiency η (%)
Line regulation
Load regulation
Output ripple voltage
Power conversion efficiency
6
2.54X11=27.94TYP.
100
90
80
Vi=311V
Vi=141V
70
60
50
40
30
20
10
0
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current Io (mA)
Load Regulation
(Ta=25°C)
14.0
Output Voltage Vo(V)
Parameter
Output voltage
Output current
1 2 3
P=2.54±0.2
Electrical Characteristics
MARKING SIDE
3.25MAX.
DC248 to DC372V
DC120 to DC372V
1s (primary - secondary)
Ambient temperature + The module
self-heating Tcmax
MARKING SIDE
Topr
Tstg
Withstanding voltage
Allowable maximum
surface temperature
Operating temperature range
Storage temperature range
24.3MAX.
°C
Po
9.3MAX.
37.4MAX.
4.0±1.0
105
Maximum power
Conditions
Output Power (W)
VI
1-Pin input current
Unit
V
Apk
V
V
V
mA
mA
mA
W
W
kV
Tcmax
6-Pin input current
Limits
720
1
400
30
9.2
−2.0
+3.0
10
24
12
2.5
Switching Frequency fsw (kHz)
Symbol
VD
ID
VH
VCC
Vzcd
Isozcd
Isizcd
Ipc
12.0
10.0
Vi=141V
Vi=311V
8.0
6.0
4.0
Maximum
Maximum
Io=2000mA
Io=1000mA
(Vi=120 to 248V) (Vi=248 to 372V)
2.0
0.0
0
500 1000 1500 2000 2500 3000 3500 4000
Output Current Io (mA)
Surface Temperature Increase
Surface Temperature Increase∆ T(°C)
Parameter
12-Pin input voltage
12-Pin input current
10-Pin input voltage
7-Pin input voltage
6-Pin input voltage
(Ta=25°C)
40
35
30
25
20
15
Vi=141V
Vi=311V
10
5
0
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current Io (mA)
2010.01 - Rev.A
