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LR246 Datasheet(PDF) 4 Page - Leshan Radio Company

Part # LR246
Description  OverVoltage Function Fast 1.2MHz Switching Frequency High Efficiency: 85% Typical
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Manufacturer  LRC [Leshan Radio Company]
Direct Link  http://www.lrc.cn/
Logo LRC - Leshan Radio Company

LR246 Datasheet(HTML) 4 Page - Leshan Radio Company

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background image
Analog Voltage Light Control
SHUTDOWN
D4
1
2
D1
PIN3(FB)
0
L1
22uH
1
2
SENSE
PIN6(VIN)
SLOPE
0
PWM
-
C1
1u
VDC
VREF
D1
COMP
PIN5(OVP)
+
C2
0.22u
+
CURRENT
VCC
5K
PIN1(SW)
HI
90K
gm
R1
PIN2(GND)
D1
HI
CONTROL
0
Fosc
Logic Voltage Light Control
PWM
PIN5(OVP)
R1
-
HI
0
D4
1
2
Fosc
HI
1k
L1
22uH
1
2
VCC
VREF
C1
1u
PWM
PIN6(VIN)
+
SENSE
PIN3(FB)
PIN2(GND)
0
PIN1(SW)
SLOPE
+
D1
SHUTDOWN
D1
CONTROL
0
C2
0.22u
gm
COMP
CURRENT
D1
LESHAN RADIO COMPANY, LTD.
LR246
4/8


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