AL8821

Document number: DS37671 Rev. 1 - 2

8 of 14

www.diodes.com

January 2015

© Diodes Incorporated

AL8821

(

1.5) 0.6 1.4

,1.5

5

16

88

, 0

1.5

COMP

COMP

LT

COMP

V

mV

V

V

V

V

mV V

V

V













 







below.

100

HYS

HYS

V

R

A





According to the operation principle , the peak to peak current

SET

LT

val

L

R

V

I



)

(

SET

HYS

L

R

V

I 



Where:

L

val

L

peak

L

I

I

I







)

(

)

(

L

val

L

ave

L

I

I

I









2

1

)

(

)

(

Where:

1

)

(

)

444

.

0

(

IN

LED

LED

ave

L

V

I

V

I











Set ratio of