鈭?/div>
75
35
6
Operation Range
-30-20-10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(
掳C
)
鈭?:
Pulse noise is not included.
Conversion Efficiency
Conversion Efficiency
畏
(%)
100
90
80
70
60
50
40
30
20
10
0
0 100 200 300 400 500 600 700 800 900 1000
Sample Application Circuit
Be sure to use fuse for safety.
Vin+
R2
+
Pin
No.
1
2
T1
D1
C1
GND
Vo:12V/500mA
D3
+
+
Name
Vo
Vo
Vin(-)
VFB
Vs
Function
This is the output detection
terminal.
This is the output detection
terminal.
This is the primary side input
minus terminal.
Feedback terminal
This is the start terminal.
Connect this via the external
resistor (750k鈩? to Vi (+).
This is the built-in FET of drain
terminal. The primary coil
minus side of the external
transformer, and the snubber
circuit for noise reduction are
connected to this.
Vo:15V/400mA
R1
D2
C2
3
4
5
C3
Output Current of Vo12(mA)
Vin-
C4
GND
7
VD
Load Regulation
Output Voltage Vo(V)
18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
7
5
4 3 2 1
External Component Settings
C1, C4: Capacitor for output voltage
smoothing
C2:
For noise terminal voltage reduction
C3:
Capacitor for input voltage smoothing
D1, D3: Rectifier diode
D2:
Rectifier diode
R1:
Resistor
R2:
T1:
Resistor
Switching transformer
470碌F/35V Low impedance for power supply
Rated ripple current 1.4Arms or higher ESR 35m鈩?or below
2200pF/1kV
33碌F/450V General purpose one
90V/6A
1kV/1A
100k鈩?/div>
卤5% 3W
Limiting element voltage 300V or higher
750k鈩?/div>
卤5% 0.25W
Limiting element voltage 600V or higher
Custom one
0
200
400
600
800
1000
1200
Output Current(mA)
1
2
3
