AL8821 データシートの表示（PDF） - Diodes Incorporated.
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AL8821 Datasheet PDF : 14 Pages
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Pin Descriptions
Pin Number
1
2
3
4
5
6
7
8
9
Pin Name
SW
CS
FB
COMP
NC
VIN
VCC
NC
Exposed Pad
Function
Integrated MOS Drain
Input Current Sense Pin
LED Output Current Feedback Pin
Control Loop Compensation Pin
Not Connected
IC Input Voltage, Adding from Boost Output Voltage
Supply Voltage For Internal Circuit
Not Connected
Connected to Ground
AL8821
Functional Block Diagram
VIN
6
Internal VCC
Regulator VREF
Bandgap VBG
VBG
UVLO
Chip_EN
VIN
VFB OVP
OVP
VCC
7
LOGIC
PWM1
9
Exposed
Pad
2
CS
CS1
VCS1
3
FB
VBG EA
4
COMP
AL8821
Document number: DS37671 Rev. 1 - 2
COMPARATOR
PWM1
OTP
VCC
Driver
1
SW
2 of 14
www.diodes.com
January 2015
© Diodes Incorporated
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