Electronic Components Datasheet Search |
|
AL8820 Datasheet(PDF) 8 Page - Diodes Incorporated |
|
AL8820 Datasheet(HTML) 8 Page - Diodes Incorporated |
8 / 15 page AL8820 Document number: DS37369 Rev. 1 - 2 8 of 15 www.diodes.com December 2014 © Diodes Incorporated AL8820 Application Information (Cont.) ( 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 The range of VCOMP is from 0V to 5V. The upper threshold depends on the lower threshold and the hysteresis value. The hysteresis value is set by external resister RHYS. It is defined as below. 100 HYS HYS V R A According to the operation principle , the peak to peak current ∆IL and the valley current IL(val) can be obtained by the below equations. 1 ) ( SET LT val L R V I 1 SET HYS L R V I Where: ∆IL is the peak to peak current of inductor. IL(val) is the valley current of inductor. From the Figure 2, the relationship between IL(peak), IL(val), IL(ave) and ∆IL can be obtained as below. L val L peak L I I I ) ( ) ( L val L ave L I I I 2 1 ) ( ) ( Where: IL(peak) is the peak current of inductor. IL(ave) is the average current of inductor. As we know the average current IL(ave) depends on the output power, rated input voltage VIN1 of boost converter and total efficiency η. So the average current IL(ave) can be obtained by the below equation. 1 ) ( IN LED LED ave L V I V I Where: |
Similar Part No. - AL8820 |
|
Similar Description - AL8820 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |