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CTL pin ON voltage
135
CTL terminal pull-up resistance
85
Power conversion efficiency
Typ.
Max.
Unit
Conditions
DC
Vi=34V, Io=500mA
Vi=34V
Vi=20 to 46V, Io=500mA
Vi=34V, Io=0 to 500mA
Vi=34V, Io=500mA
SW1 OFF (VoOFF)
SW1 ON (VoON)
Vi=34V, Io=500mA
Derating Curve
600
Output Current Io(mA)
500
400
300
200
100
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(
擄C
)
Operation Range
Derating Curve
Conversion Efficiency
100
80
60
Conversion Efficiency
(Ta=25
擄C
, Vi=34V)
Application circuit
BP5226-18
BP5226-18
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Function
Output terminal:Vo(18V)
CTL terminal
Power inductor terminal
Skip
Power inductor terminal
Skip
COMMON
Skip
Skip
Input terminal
N.C.
Input terminal
40
20
0
0
100
200
300 400
Output Current Io(mA)
500
1211 10
7
5
321
Io
Load Regulation
20.0
18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0
Load Regulation
(Ta=25
擄C
, Vi=12V)
Output Voltage Vo(V)
AC24V
D1
FUSE
L1
Ctl
C1
C2
Vo
Be sure to use fuse for safety.
For actual 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.
Input terminal is 10 and 12.
External components setting
FUSE: fuse
C1: Input capacitor
C2: Output capacitor
L1: Power inductor
D1: Diode
Above 60V, current:above 1.0A
Above 25V, 100碌F to 1000碌F, Low impedance
Please make sure to use quick acting (1.8A)
0 100 200 300 400 500 600 700 800
Output Current Io(mA)
1
2
3
