BP5717 Datasheet, PDF (1/2 Pages) Rohm – AC80V to AC138V input, 18W output Isolated AC/DC converter

Data Sheet
AC80V to AC138V input, 18W output
Isolated AC/DC converter
BP5717
Absolute Maximum Ratings
Parameter
Symbol Limits
12-pin input voltage
VD
480
12-pin input current
10-pin input voltage
ID
1
VH
400
7-pin input voltage
VCC
30
6-pin input current
Isozcd
Isizcd
−2.0
+3.0
1-pin input current
Ipc
10
Maximum power
Po
18
Withstanding voltage
VI
2.5
Allowable maximum surface temperature Tcmax 105
Operating temperature range Topr −25 to +80
Storage temperature range Tstg −30 to +105
Electrical Characteristics
<12V output>
Parameter
Output voltage
Output current
Symbol Min.
Vo
11.4
Io
0
Line regulation
Vr
−
Load regulation
Output ripple voltage
VI
−
Vp
−
Power conversion efficiency
η
82
Unit
V
Apk
V
V
mA
mA
mA
W
kV
°C
°C
°C
Conditions
(Ta=25°C)
Dimensions (Unit : mm)
37.4MAX
9.3MAX
MARKING SIDE
113V to195VDC (about 80 to 138VAC)
1sec (between primary and secondary)
(Ambient temperature + the module self-heating)≤Tcmax
3.25MAX
123
6 7 8 10
0.5±0.1
P=2.54±0.2
1.3±0.2
2.54X11=27.94TYP.
12
2.25MAX.
0.25±0.05
7.05MAX.
Derating Curve
(Unless otherwise noted, Vi=141V, rated load Ta=25°C)
Typ. Max. Unit
Conditions
12.0 12.6
V Io=1500mA
−
1500
mA
∗1
2
200
mV
Vi=113V to 195VDC
Io=1500mA
5
200
mV Io=50 to 1500mA
55
500 mVpp Io=1500mA
∗2
87
−
% Io=1500mA
20
18
16
14
12
10
8
Operation Range
6
4
2
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(°C)
∗1: Maximum output current must be reduced by ambient temperature.
∗2: An output ripple voltage sometimes changes in capacitor to use, the measurement environment.
Especially right attention has to be paid to aluminum electrolytic capacitor,because ESR changes greatly
at the time of the low temperature and output voltages increase.
Sample Application Circuit
F1
ZNR
Be sure to use fuse for safety.
FL1
C1
C2
D4
RTH
R2 C5
D2
C8 D3
12V 1.5A
C7
R3 R4
C3
C6
12 10 8 7
D1
C4
R1
T1
6
321
Pin
No.
Name
Function
1
PC Secondary-Side Photocoupler Current Supply Pin
2
Secondary Output Voltage Control Pin.
Vo
Connect the output smoothing capacitor between GND.
3
GND GND Pin for Secondary Output
6
ZCD Zero-Current Adjustment Pin
7
Vcc Internal Power Supply Pin
8
Vin(-) Primary Input (Negative) Pin
10
VH Startup Pin
Drain Pin for Internal FET.
12
VD Connect to the primary windings of
the external transformer.
BP5717
External Component Settings
C1,C2: EMI Capacitor for AC Line
C3: Input smoothing capacitor
C4: Vcc smoothing capacitor
C5: Noise reduction capacitor
C6: Quasi-resonance capacitor
C7: Output smoothing capacitor
C8: Noise reduction capacitor
D1: Rectifier diode
D2: Rectifier diode
D3: Rectifier diode
D4: Diode bridge
R1: Zero-Current Adjustment Resistor
R2: Snubber Resistor
R3: Output voltage setting resistor
R4: PC Current-Limiting Resistor
T1: Switching transformer
F1: Fuse
FL1: EMI Filter for AC Line
ZNR: Varistor
RTH: Thermistor
0.1 to 0.22µF/AC250V
47µF / 250V
10µF / 50V low impedance
2200pF / 1kV
Use if necessary
1000µF / 35V×2 low impedance, Rated ripple current 5.5Arms.
2200pF/AC250V
FRD 200V/0.5A
600V/1A
60V/20A
400V/1A
47kΩ±1% 0.125W
200kW±5% 3Ω Rated at 300V or higher
69.2Ω (68kW + 1.2kW) ±1% 0.125W
910Ω ±1% 0.125W
-
Be sure to use this for safety
-
Be sure to use this for safety
Use if necessary
Conversion Efficiency
100
80
60
40
20
0
0
(Vin=141V, Ta=25°C)
250
500
750
1000 1250 1500
Output Current Io (mA)
Load Regulation
(Vin=141V, Ta=25°C)
16
14
12
10
8
6
4
2
0
0
500
1000
1500
2000
2500
Output Current Io (mA)
Line Regulation
(lo=1500mA, Ta=25°C)
12.6
12.4
12.2
12.0
11.8
11.6
11.4
100
120
140
160
180
200
Input voltage (V)
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2011.10 - Rev. A