參數(shù)資料
型號(hào)： L6714TR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64
封裝： 10 X 10 MM, LEAD FREE, TQFP-64
文件頁(yè)數(shù)： 39/70頁(yè)
文件大?。?/td> 694K
代理商： L6714TR
Soft start
L6714
44/70
Figure 15. Soft-start time for Intel mode.
15.2
AMD mode
Once L6714 receives all the correct supplies and enables, and AMD Mode has been
selected, it initiates the Soft-Start by stepping the reference from zero up to the programmed
VID code (See Figure 14); the clock now used to step the reference is the same as the main
oscillator programmed by the OSC pin, SSOSC pin is not applicable in this case. The Soft-
Start time results then (See Figure 16):
where TSS is the time spent to reach VSS and FSW is the main switching frequency
programmed by OSC pin. Protections are active during Soft-Start, UVP is enabled after the
reference reaches 0.6V while OVP is always active with the fixed 1.800V threshold (or the
programmed VOVP).
0
1
2
3
4
5
6
7
8
1
10
100
1000
Rssosc [kOhms] vs. SGND
So
ft
St
a
rt
T
im
e
T
s
[m
s
]
Time to Vboot
Time to 1.6000V
dV
OUT
dT
------------------
3.125
F
SW kkHz
[]
=
T
SS
V
SS
3.125
F
SW kHz
[]
--------------------------------------------------
=
相關(guān)PDF資料
PDF描述
L6714 SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64
L6725TR 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6728ATR SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, PDSO10
L6728A SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, PDSO10
L6728D 30 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO10
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6716 制造商:STMicroelectronics 功能描述:DC DC Cntrlr Quad-OUT Sync Step Down 48-Pin VFQFPN EP Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:2/3/4 Phase Controlr Embedded Driver
L6716TR 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2/3/4 phase CNTRL Embedded Drivers RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
L6717 制造商:STMicroelectronics 功能描述:High-Efficiency Hybrid AM2r2 Controller 48-Pin VFQFPN Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver
L6717A 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver
L6717ATR 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller T/R 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Tape and Reel 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver
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