BP5729_10 Datasheet, PDF (1/4 Pages) Rohm – Isolated AC/DC Converter

Data Sheet
100-230VAC Input/24W Output
Isolated AC/DC Converter
BP5729
Absolute Maximum Ratings
Parameter
12-Pin input voltage
12-Pin input current
10-Pin input voltage
7-Pin input voltage
Symbol
Limits
Unit
VD
720
V
ID
1
Apk
VH
400
V
VCC
30
V
Conditions
6-Pin input voltage
Vzcd
9.2
V
6-Pin input current
Isozcd
−2.0
mA
Isizcd
+3.0
mA
1-Pin input current
Ipc
10
mA
Maximum power
Po
24
12
W
DC248 to DC372V
W
DC120 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>
(Unless otherwise noted, Vi=311V, rated load Ta=25°C)
Parameter
Symbol Min.
Typ.
Max. Unit
Conditions
Output voltage
Output current
Line regulation
Load regulation
Output ripple voltage
Vo
11.4
12.0
12.6
V Io=2000mA
Io
0
−
2000
mA Refer to derating curve
Vr
−
13
200
mV
Vi=120 to 372V DC
Io=1000mA
VI
−
20
200
mV Io=50 to 2000mA
Vp
−
0.16
0.5
Vp-p ∗
Power conversion efficiency η
82
90
−
% Io=2000mA
∗ Pulse noise is not included.
Sample Application Circuit
F1
ZNR
Be sure to use fuse for safety.
FL1
D4
C2
C1
R2 ^C5
D2
C8
D3
R3 R4
+
C7
+
D1
C3
C6
+
C4
R1
T1
12 10 8 7
6
321
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.
External Components Specifications
BP5729
7 Vcc This is the internal circuit power supply terminal.
8 Vi(-) 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.
C1,C2: Noise reduction capacitors
C3: Input smoothing capacitor
C4: Vcc smoothing capacitor
C5: Noise reduction capacitor
C6: Quasi-resonance capacitor
C7: Output smoothing capacitor
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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©2010 ROHM Co., Ltd. All rights reserved.
1/1
Dimensions (Unit : mm)
37.4MAX.
9.3MAX.
MARKING SIDE
3.25MAX.
123 6
P=2.54±0.2
7 8 10
0.5±0.1
1.3±0.2
2.54X11=27.94TYP.
12
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)
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)
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)
2010.01 - Rev.A