參數(shù)資料
型號(hào)： 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)： 17/57頁
文件大小： 829K
代理商： L6716
Current reading and current sharing loop
L6716
24/57
Doc ID 14521 Rev 3
For the disabled phase(s), the current reading pins need to be properly connected to avoid
errors in current-sharing and voltage-positioning: CSx+ needs to be connected to the
regulated output voltage while CSX- needs to be connected to VOUT trough the same RG
resistor used for the other phases, as shown in figure Figure 9.
Figure 8.
Current reading connections for the disabled phase
Current sharing control loop reported in Figure 9: it considers a current IINFOx proportional to
the current delivered by each phase and the average current
. The error
between the read current IINFOx and the reference IAVG is then converted into a voltage that
with a proper gain is used to adjust the duty cycle whose dominant value is set by the
voltage error amplifier in order to equalize the current carried by each phase. Details about
connections are shown in Figure 9.
Figure 9.
Current sharing loop
CSx+
CSx-
Rg
Current Sense connection
Disabled Phase
VOUT
I
AVG
ΣI
INFOx N
=
I
INFO1
PWM1 Out
From EA
I
INFO2
I
AVG
PWM2 Out
I
INFO3
PWM3 Out
AVG
PWM4 Out
I
INFO4
(PHASE4 Only when using 4-PHASE Operation - PHASE2 when using 3 or 4 PHASE Operation)
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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(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
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(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
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