BP5729 Datasheet, PDF (1/3 Pages) Rohm – AC 100 to AC230V input, 24W output

Isolated AC/DC Converter
AC 100 to AC230V input, 24W output
BP5729
Absolute Maximum Ratings
Parameter
Symbol
Limits
Unit
12-Pin input voltage
VD
720
V
12-Pin input current
ID
1
Apk
10-Pin input voltage
VH
400
V
7-Pin input voltage
VCC
30
V
Conditions
Dimensions (mm)
37.4MAX.
9.3MAX.
MARKING SIDE
6-Pin input voltage
Vzcd
9.2
V
6-Pin input current
Isozcd
Isizcd
−2.0
+3.0
mA
mA
1-Pin input current
Ipc
10
mA
Maximum power
Po
24
12
W
DC248V to DC372V
W
DC120V to DC372V
Withstanding voltage
VI
2.5
kV
1s (primary - secondary)
Allowable maximum
surface temperature
Tcmax
105
°C
Ambient temperature + The module
self-heating Tcmax
Operating temperature range Topr −25 to +80
°C
Storage temperature range Tstg −30 to +105
°C
Electrical Characteristics
<In case of 12V output>
Parameter
Output voltage
Output current
Symbol
Vo
Io
Min.
11.4
0
Line regulation
Vr
−
Load regulation
VI
−
Output ripple voltage Vp
−
Power conversion efficiency η
82
∗ Pulse noise is not included.
Sample Application Circuit
Be sure to use fuse for safety.
F1
ZNR
FL1
D4
C2
C1
Typ.
12.0
−
13
20
0.16
90
(Unless otherwise noted, Vi=311V, rated load Ta=25°C)
Max. Unit
Conditions
12.6
V Io=2000mA
2000
mA Refer to derating curve
200
mV
Vi=120 to 372VDC
Io=1000mA
200
mV Io=50 to 2000mA
0.5
Vp-p ∗
−
% Io=2000mA
R2 ^C5
D2
C8
D3
R3 R4
12V , 2A
+
C7
3.25MAX.
1 2 3 6 7 8 10 12
P=2.54±0.2
0.5±0.1
1.3±0.2
2.54X11=27.94TYP.
2.25MAX.
0.25±0.05
7.05MAX.
Derating Curve
27
24
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
<In case of 12V output>
(Ta=25°C)
120
100
Burst Switching
80
60
Vi=141V
Vi=311V
40
Burst Switching
20
0
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current Io(mA)
+
C3
C6
D1
+
C4
R1
12 10 8 7
6
T1
321
BP5729
Pin
No.
Name
Function
1
This is the secondary side
PC _{opto-coupler current control terminal.}
This is the secondary side output voltage
2
Vo control terminal. Insert the output
smoothing capacitor between GND.
3 GND This is the GND terminal for the secondary side.
6 ZCD This is the zero current control terminal.
7 Vcc This is the internal circuit power supply terminal.
8 Vin(-) This is the primary side input minus terminal.
10 VH This is the start teminal.
This is the built-in FET of drain terminal.
The primary coil minus side of the
12 VD external transformer, and the snubber
circuit for noise reduction are connected
to this.
External Components Setting
C1,C2: Noise terminal voltage
countermeasure capacitor
C3: Capacitor for input voltage smoothing
C4: Capacitor for Vcc voltage smoothing
C5: For noise terminal voltage reduction
C6: Capacitor for quasi-resonant
C7: Capacitor for output voltage smoothing
Limiting element voltage AC250V or higher 0.1 to 0.22µF
33µF / 450V General purpose one
10µF / 50V Low impedance for power supply
2200pF / 630V
Please set it, if necessary
1000µF / 35V x 2 Low impedance for power supply
Rated ripple current 4.5Arms or higher ESR 18mΩ or below
Conversion Efficiency
<In case of 12V output>
(Ta=25°C)
100
90
80
Vi=141V
70
Vi=311V
60
50
40
30
20
10
0
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current Io (mA)
Load Regulation
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
0
<In case of 12V output>
(Ta=25°C)
Vi=141V
Vi=311V
Maximum
Maximum
Io=1000mA Io=2000mA
(Vi=120 to 248V) (Vi=248 to 372V)
500 1000 1500 2000 2500 3000 3500 4000
Output Current Io (mA)
C8: For noise terminal voltage reduction
D1: Rectifier diode
D2: Rectifier diode
D3: Rectifier diode
D4: Diode bridge
R1: Resistor
R2: Resistor
R3: Resistor for output voltage setting
R4: Resistor
T1: Switching transformer
F1: Fuse
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
Surface Temperature Increase
<In case of 12V output>
(Ta=25°C)
40
35
30
25
20
Vi=141V
15
10
Vi=311V
5
0
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current Io (mA)
FL1: AC line filter
ZNR: Varistor
Must be use. It protects this part from lightning surge and static electricity.
Precautions on use of products
This product has built-in over current (reset type) and over voltage (latch type) protection function to prevent destruction
at abrupt error. These protection functions are effective for prevention against destruction owing to abrupt accident,
therefore, avoid using them for continuous protection circuit operating, or at transition