 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
L9679P 数据表(PDF) 42 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
L9679P 数据表(HTML) 42 Page - STMicroelectronics |
|
|
42 / 279 page  Start-up and power control L9679P 42/279 DS11627 Rev 7 The user can decide the charge and discharge time based on the ER CAP used in application, in order to maximize the differential voltage and then improve the accuracy. Anyway, a timeout on ER Discharge current has been implemented to prevent thermal issue, so the discharge time cannot be longer than 350 ms. Figure 16. ER CAP measurement timing diagram The following formulas can be used to retrieve the ER CAP value from the voltage and timing measurements. T1 = discharge time T2 = charge time, same as discharge time T1 = T2 = T V1 = Vstart - Vstop V2 = Vend - Vstop I1 = discharge current I2 = charge current, same as discharge current I1 = I2 = I ILEAK = leakage current ESR > 0 VER (t) ER_DISCHARGE ER_CHARGE ESR = 0 Vstart Vstop Vend T1 T2 GAPGPS02262 V1 V2 + I1 ILEAK + C ---------------------------T1 I2 ILEAK – C --------------------------T2 + = C 2 I T Vstart Vend 2 Vstop – + ---------------------------------------------------------------- = |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 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 |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
