BP5723-33 Datasheet, PDF (1/3 Pages) Rohm – Isolated AC/DC Converter AC 100V to AC 220V input, 3.3V / 3A output

Isolated AC/DC Converter
AC 100V to AC 220V input, 3.3V / 3A output
BP5723-33
Absolute Maximum Ratings
Parameter
Symbol
Limits
Unit
Conditions
11 pin input voltage
VD
700
V
7 pin input voltage
VDD
25
V
11 pin input currents
ID
500
mA
PEAK
8 pin input currents
IDD
10
mA
Maximum output power
Po
10
W
Withstand voltage
VI
3
KV
1 sec (Primary - Secondary)
Permission temperature Tcmax
105
°C
Contain a self-fever
Operating
temperature range
Topr −25 to +80
°C
Storage temperature
range
Tstg −30 to +105
°C
Dimensions (mm)
38.5MAX
10.9MAX.
3.3MAX.
12
P=2.54±0.2
678 9
0.5±0.1
1.3±0.2
2.54×10=25.4(TYP)
11
7.2MAX.
0.25±0.05
3.7MAX.
Electrical Characteristics
Parameter
Symbol Min.
Typ.
Pin 11 input voltage VD
−
−
Operating power
voltage(Pin 7)
VDD
8.5
14
Rated output voltage Vo
3.13
3.3
Rated output current Io
0
−
Line regulation
∆Vr
−
10
Load regulation
∆VI
−
10
Output ripple voltage ∆γ
−
100
Power conversion
efficiency
η
70
79
*1: Operation start voltage becomes 16V to 18 V.
*2: Pulse noise does not include it.
Sample Application Circuit
Max.
650
20
3.47
3.0
200
200
500
−
Vin
ZNR C5
D1
F1
T1
D2
Vo=3.3V
Io=3.0A
+
C4
R1
C1 ^−
R2
D3
D4
+
C3
−
++
−−
C2A C2B
C6
6
9 8 11 7
21
Unit
V
V
V
A
mV
mV
mVpp
%
Conditions
Vin=141V Io=3A
Vin=141V Io=1A *1
Vin=141V, Io=2A
Refer to derating curve
Vi=113V to 374VDC
Io=2A
Vin=141V, Io=0A to 2A
Vin=141V, Io=2A *2
Vin=141V, Io=3A
Pin
No.
Name
Terminal function
1
Vo
Secondary output voltage
control terminals.
2
GND
GND terminals for the
Secondary side output.
6
Vin(−)
The primary side input
minus terminal.
7
VDD
The power supply terminal
of an inside circuit.
8
Vs Triggering terminal.
9
NC NC pin.
11
VD
It is the drain terminal of
inclusion FET.
BP5723-33
Derating Curve
12
10
8
6
Operation Range
4
2
0
-30-20-10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(°C)
Switching Frequency
70
60
50
40
30
20
10
Vin=141V
Vin=311V
0
0 500 1000 1500 2000 2500 3000
Output Current Io (mA)
Conversion Efficiency
90
80
70
60
50
40
30
20
Vin=141V
10
Vin=311V
0
0 500 1000 1500 2000 2500 3000
Output Current Io (mA)
External Component Settings
C1:
Input Capacitor
C2A, C2B: Output Capacitor
C3:
Output Capacitor
C4:
Noise Removal Capacitor
C5:
Noise Removal Capacitor
C6:
Noise Removal Capacitor
33µF / 450V
D1: Diode bridge
560µF / 10V
D2: Shottkey diode
High polymer aluminum solid condenser D3: Rectification Diode
10µF / 50V Low impedance type D4: Rectification Diode
4700pF / 1kV
R1: Resistance
As occasion demands attach it
R2: Resistance
As occasion demands attach it
T1: Switching transformer
F1: Fuse
ZNR: Varistor
−
30V / 15A
1kV / 1A
80V / 0.13A
47kΩ±5% 3W DC300V over
1.5MΩ±5% 0.25W 750V over
Custom
Be sure to use a fuse for the safety.
Be sure to use it to protect this product
from thunder surge and the static electricity.
Load Regulation
4
3.5
3
2.5
2
1.5
1
0.5
0
0
Vin=141V
Vin=311V
500 1000 1500 2000 2500 3000 3500 4000 4500 5000
Output Current Io (mA)
Operation Notes
An excessively large capacitance at C1 may cause the output to become inactive. Therefore, a capacitance between 500µF to 2200µF is recommended, with a rise time of 10us or less.
The capacitance of C3 should be 10µF, since an excessively small value will result in malfunction. The activation time is defined as : t(s)=R2*C3ln[1-17/(VI-30µA*R2)], where VI is the
DC voltage after smoothing.
The resistance of R2 should be 1.5MΩ, since an excessively small value will result in malfunction.
Overcurrent (reset type) and overvoltage (latch type) protection circuits are built in, preventing damage from occurring due to unexpected conditions. The overvoltage protection
circuit shuts down operation once VDD exceeds 20V. In order to reset the input capacitor C4 must be discharged and the power turned back on.
Rev.A