參數(shù)資料
型號: PM6675STR
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
文件頁數(shù): 27/53頁
文件大?。?/td> 2632K
代理商: PM6675STR
PM6675S
Device description
33/53
7.1.7
Switching section power good signal
The SPG pin is an open drain output used to monitor output voltage through VSNS (in fixed
output voltage mode) or VSEL (in adjustable output voltage mode) pins and is enabled after
the soft-start timer has expired. The SPG signal is held low if the output voltage drops 10%
below or rises 10 % above the nominal regulated value. The SPG output can sink current up
to 4 mA.
7.1.8
Switching section output discharge
Active soft-end of the output occurs when the SWEN (SWitching ENable) is forced low.
When the switching section is turned off, an internal 25
resistor discharges the output
through the VSNS pin.
Figure 43.
Switching section soft-end
Figure 42.
Soft-start at heavy load (a) and short-circuit (b) conditions, Pulse-Skip enabled
(a)
(b)
SWEN
VOUT
Resistive Discharge
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