參數(shù)資料
型號(hào): PM6670STR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: 3 A SWITCHING CONTROLLER, QCC24
封裝: 4 X 4 MM, LEAD FREE, VFQFPN-24
文件頁(yè)數(shù): 27/54頁(yè)
文件大?。?/td> 742K
代理商: PM6670STR
PM6670S
Device description
Doc ID 14432 Rev 4
33/54
After a fixed 3 ms total time, the soft-start finishes and UVP is released: if the output voltage
doesn't reach the under voltage threshold within soft-start duration, the UVP condition is
detected and the device performs a soft end and latches off. Depending on the load
conditions, the inductor current may or may not reach the nominal value of the current limit
during the soft-start (Figure 38 shows two examples).
7.1.7
Power Good signal
The PG pin is an open drain output used to monitor output voltage through VSNS (in fixed
output voltage mode) or MODE (in adjustable output voltage mode) pins and is enabled
after the soft-start timer has expired. PG signal is held low if the VDDQ output voltage drops
10 % below or rises 10 % above the nominal regulated value. The PG output can sink
current up to 4 mA.
Figure 38.
Soft-start at heavy load (a) and short-circuit (b) conditions, pulse-skip enabled
(a)
(b)
相關(guān)PDF資料
PDF描述
PM6670S 3 A SWITCHING CONTROLLER, QCC24
PM6670TR 1.4 A SWITCHING CONTROLLER, QCC24
PM6670ATR 1.4 A SWITCHING CONTROLLER, QCC24
PM6670 1.4 A SWITCHING CONTROLLER, QCC24
PM6675ASTR 3 A SWITCHING CONTROLLER, QCC24
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