鈭?/div>
Conversion Efficiency
Conversion Efficiency
畏
(%)
100
90
80
70
60
50
40
30
20
10
0
0
C2
Vo
C1
C3
Conversion Efficiency
(Ta=25
擄C
, Vi=311V)
Be sure to use fuse for safety.
For acutual usage, Please kindly evaluate and confirm our part mounted in your product,
Especially, Please make sure to confirm the load current does not exceed Max. rated current
by using the current probe.
External components setting
FUSE: Fuse
C1: Capacitor for input
voltage smoothing
C2: Capacitor for output
voltage smoothing
C3: For noise terminal
voltage reduction
L1: Choke coil
Please make sure to use quick acting fuse 1A
Capacitance : 33碌F to 100碌F Rated voltage : 450V or higher
Capacitance : 220碌F to 470碌F Rated voltage : 35V or higher,
ESR is 0.16 max. Ripple current is 0.58Arms above.
Output noise voltage is infulenced.Please evaluate it in the actual set.
Capacitance : 0.1碌F to 0.22碌F Rated voltage : 450V or higher
Film capacitor or ceramic capacitor. Reduce the noise terminal voltage.
The constant value should be evaluated in the set.
L : 1mH Allowable current : 1A or higher
Please use the one that is hard to be magnetic saturated even in the high
temperature.
10鈩?to 22鈩?1/4W(short time overload guranteed product)
Reduce the noise terminal voltage.please set it,if necessary.
The constant value should be evaluated in set.
In the absolute maximum ratings, the reverse peak voltage should be
600V or higher, the average rectifying current should be 0.5A or higher,
and the peak surge current should be 20A or higher.
(Full-wave rectifier can be used in out part.)
600V/2A
Please select a power transistor with high-speed switching.
Please make sure to radiate by using heat sink.
Please select appropriate size to protect Q1 from thermal run away.
Thermal resistance : 20擄C/W or less.
Varistor must be used. It protects this part from lightning surge and static
electricity.
50 100 150 200 250 300 350 400 450 500
Output Current Io(mA)
Load Regulation
18
16
14
12
10
8
6
4
2
0
Load Regulation
(Ta=25
擄C
, Vi=311V)
Output Voltage (V)
0 100 200 300 400 500 600 700
Output Current Io(mA)
R1: For noise terminal
voltage reduction
D1: Rectifier diode
Surface Temperature Rising
Temperature Rising
鈭?/div>
T(
擄C
)
Q1: Power transistor
50
45
40
35
30
25
20
15
10
5
0
Surface Temperature Rising
(Ta=25
擄C
,Vi=311V)
0
Heat sink
ZNR: Varistor
100
200
300
400
Output Current Io(mA)
500
Rev.A
1/2
1
2
3
