參數(shù)資料
型號： L6716
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： DUAL SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, QCC48
封裝： 7 X 7 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFP-48
文件頁數(shù)： 31/57頁
文件大?。?/td> 829K
代理商： L6716
L6716
Soft-start
Doc ID 14521 Rev 3
37/57
Note:
If during TD3 the programmed VID selects an output voltage lower than VBOOT, the output
voltage will ramp to the programmed voltage starting from VBOOT.
Figure 19.
SSOSC connection
where TSS is the time spent to reach the programmed voltage VSS and RSSOSC the resistor
connected between SSOSC and SSEND (through a signal diode) in k
Ω.
Figure 20.
Soft-start time (TSS) when using RSSOSC, diode versus SSEND
Use the following relationship to select the maximum LTB switching frequency:
where FLIMIT has to be higher than the FSW switching frequency.
SSOSC
SS_END
RSSOSC
D
Q
RPull-Up(1k)
VPull-Up(1.2V)
to SSEND Logic
Rb(10k)
RFLIMIT
Soft Start time and FLIMIT
selected in indipendent way.
RFLIM_SS
Soft Start time depends
on selected FLIMIT.
R
SSOSC kΩ
[]
T
D2 μs
[] 40 10
3
–
1.24
V
DIODE V
[]
–
1.24
-----------------------------------------------
=
T
SS μs
[]
200
μs
[]
R
SSOSC kΩ
[]
40 10
3
–
-----------------------------------
1.24
V
DIODE V
[]
–
-----------------------------------------------
V
SS
V
BOOT
------------------
if V
SS
V
BOOT
>
()
R
SSOSC kΩ
[]
40 10
3
–
-----------------------------------
1.24
V
DIODE V
[]
–
-----------------------------------------------
1
V
SS
V
BOOT
------------------
+
if V
SS
V
BOOT
<
()
+
=
R
FLIMIT kΩ
[]
2.11 10
4
F
LIMIT kHz
[]
---------------------------------
1.24
V
CE
BJT
V
[]
–
1.24
-----------------------------------------------
=
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
L6717TR 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 High-Efficienc AM2r2 Hybrid Controller 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: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
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