鈭?/div>
C2A C2B
Name
Vo
GND
Vin(鈭?
VDD
Vs
NC
VD
Terminal function
Secondary output voltage
control terminals.
GND terminals for the
Secondary side output.
The primary side input
minus terminal.
The power supply terminal
of an inside circuit.
Triggering terminal.
NC pin.
It is the drain terminal of
inclusion FET.
6
7
8
9
11
Output Current Io (mA)
Conversion Efficiency
Conversion Efficiency
畏
(%)
90
80
70
60
50
40
30
20
10
0
0
6
9
8
11
7
2
1
BP5723-33
Vin=141V
Vin=311V
500 1000 1500 2000 2500 3000
Output Current Io (mA)
External Component Settings
C1:
Input Capacitor
C2A, C2B: Output Capacitor
C3:
C4:
C5:
C6:
Output Capacitor
Noise Removal Capacitor
Noise Removal Capacitor
Noise Removal Capacitor
33碌F / 450V
560碌F / 10V
High polymer aluminum solid condenser
10碌F / 50V Low impedance type
4700pF / 1kV
As occasion demands attach it
As occasion demands attach it
D1:
D2:
D3:
D4:
R1:
R2:
T1:
F1:
ZNR:
Diode bridge
Shottkey diode
Rectification Diode
Rectification Diode
Resistance
Resistance
Switching transformer
Fuse
Varistor
鈭?/div>
30V / 15A
1kV / 1A
80V / 0.13A
47k鈩β?% 3W DC300V over
1.5M鈩β?% 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
Output Voltage Vo (V)
4
3.5
3
2.5
2
1.5
1
0.5
0
Vin=141V
Vin=311V
0 500 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 500碌F to 2200碌F is recommended, with a rise time of 10us or less.
The capacitance of C3 should be 10碌F, since an excessively small value will result in malfunction. The activation time is defined as : t(s)=R2*C3ln[1-17/(VI-30碌A(chǔ)*R2)], where VI is the
DC voltage after smoothing.
The resistance of R2 should be 1.5M鈩? 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 V
DD
exceeds 20V. In order to reset the input capacitor C4 must be discharged and the power turned back on.
Rev.A
1
2
3
