ROHM BP5729

BP5729
Isolated AC/DC Converter
AC 100 to AC230V input, 24W output
Absolute Maximum Ratings
Tcmax
105
°C
Topr
Tstg
−25 to +80
−30 to +105
°C
°C
Maximum power
Po
Withstanding voltage
Allowable maximum
surface temperature
Operating temperature range
Storage temperature range
Conditions
MARKING SIDE
1 2 3
Parameter
Output voltage
Output current
DC248V to DC372V
DC120V to DC372V
1s (primary - secondary)
Ambient temperature + The module
self-heating Tcmax
0.25±0.05
12
2.25MAX.
7.05MAX.
Derating Curve
24
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 372VDC
Io=1000mA
Io=50 to 2000mA
∗
Io=2000mA
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
Switching Frequency
fsw (kHz)
100
12V , 2A
C8
D3
Be sure to use fuse for safety.
FL1
R2
D4
+
C5
C2
Burst Switching
Vi=311V
80
Vi=141V
60
40
Burst Switching
20
C7
R3
D2
C1
0
R4
0
200 400 600
800 1000 1200 1400 1600 1800 2000
Output Current Io(mA)
+
D1
Conversion Efficiency
+
C4
R1
C6
T1
12
10
8
7
6
3
2
1
Pin
No.
Name
1
PC
This is the secondary side
opto-coupler current control terminal.
Vo
This is the secondary side output voltage
control terminal. Insert the output
smoothing capacitor between GND.
2
3
GND This is the GND terminal for the secondary side.
6
ZCD
7
8
10
Vcc This is the internal circuit power supply terminal.
Vin(-) This is the primary side input minus terminal.
VH This is the start teminal.
This is the built-in FET of drain terminal.
The primary coil minus side of the
VD external transformer, and the snubber
circuit for noise reduction are connected
to this.
12
BP5729
<In case of 12V output>
(Ta=25°C)
Function
Conversion Efficiency η (%)
C3
This is the zero current control terminal.
For noise terminal voltage reduction
Rectifier diode
Rectifier diode
Rectifier diode
Diode bridge
Resistor
Resistor
Resistor for output voltage setting
Resistor
Switching transformer
Fuse
AC line filter
Varistor
90
80
Vi=311V
Vi=141V
70
60
50
40
30
20
10
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current Io (mA)
Load Regulation
<In case of 12V output>
(Ta=25°C)
Output Voltage Vo(V)
14.0
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
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
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
<In case of 12V output>
(Ta=25°C)
40
Surface Temperature
Increase∆ T(°C)
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
100
0
External Components Setting
C8:
D1:
D2:
D3:
D4:
R1:
R2:
R3:
R4:
T1:
F1:
FL1:
ZNR:
10
27
Symbol
Vo
Io
Sample Application Circuit
ZNR
8
0.5±0.1
1.3±0.2
2.54X11=27.94TYP.
∗ Pulse noise is not included.
F1
7
P=2.54±0.2
(Unless otherwise noted, Vi=311V, rated load Ta=25°C)
Line regulation
Load regulation
Output ripple voltage
Power conversion efficiency
6
3.25MAX.
Electrical Characteristics
<In case of 12V output>
9.3MAX.
37.4MAX.
MARKING SIDE
VI
Unit
V
Apk
V
V
V
mA
mA
mA
W
W
kV
Output Power (W)
6-Pin input current
1-Pin input current
Dimensions (mm)
Limits
720
1
400
30
9.2
−2.0
+3.0
10
24
12
2.5
24.3MAX.
Symbol
VD
ID
VH
VCC
Vzcd
Isozcd
Isizcd
Ipc
4.0±1.0
Parameter
12-Pin input voltage
12-Pin input current
10-Pin input voltage
7-Pin input voltage
6-Pin input voltage
35
30
25
20
15
Vi=141V
Vi=311V
10
5
0
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Be sure to use this for safety
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
Output Current Io (mA)
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level
of reliability and the malfunction of which would directly endanger human life (such as medical
instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers
and other safety devices), please be sure to consult with our sales representative in advance.
It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance
of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow
for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in
order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM
cannot be held responsible for any damages arising from the use of the products under conditions out of the
range of the specifications or due to non-compliance with the NOTES specified in this catalog.
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Appendix1-Rev2.0