전자부품 데이터시트 검색엔진 |
|
ST1S40 데이터시트(PDF) 8 Page - STMicroelectronics |
|
ST1S40 데이터시트(HTML) 8 Page - STMicroelectronics |
8 / 29 page Functional description ST1S40 8/29 DocID17928 Rev 5 5.1 Internal soft-start The soft-start is essential to assure correct and safe startup of the step-down converter. It avoids inrush current surge and causes the output voltage to increase monothonically. The soft-start is performed by ramping the non-inverting input (VREF) of the error amplifier from 0 V to 0.8 V in around 1 ms. 5.2 Error amplifier and control loop stability The error amplifier compares the FB pin voltage with the internal 0.8 V reference and it provides the error signal to be compared with the output of the current sense circuitry, that is the high side Power MOSFET current. Comparing the output of the error amplifier and the peak inductor current implements the peak current mode control loop. The error amplifier is a transconductance amplifier (OTA). The uncompensated characteristics are listed inTable 5. Table 5. Error amplifier characteristics The ST1S40 device embeds the compensation network that assures the stability of the loop in the whole operating range. All the tools needed to check the loop stability are shown below. Parameter Value DC Gain 95 dB Gm 251 µA/V Ro 240 M |
유사한 부품 번호 - ST1S40 |
|
유사한 설명 - ST1S40 |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 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 |