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參數(shù)資料
| 型號： | L6714 |
| 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 |
| 文件頁數(shù)： | 39/70頁 |
| 文件大?。?/td> | 694K |
| 代理商： | L6714 |
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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
[]
--------------------------------------------------
=
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| L6728A | SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, PDSO10 |
| L6728D | 30 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO10 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6714TR | 功能描述:功率驅(qū)動(dòng)器IC 4 Phase Controller RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| 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 |
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