參數(shù)資料
型號(hào)： L6711TR
廠商： STMICROELECTRONICS
元件分類(lèi)： 穩(wěn)壓器
英文描述： 2 A SWITCHING CONTROLLER, 178 kHz SWITCHING FREQ-MAX, PQFP48
封裝： 7 X 7 MM, 1 MM HEIGHT, TQFP-48
文件頁(yè)數(shù)： 16/50頁(yè)
文件大?。?/td> 679K
代理商： L6711TR
Obsolete
Product(s)
- Obsolete
Product(s)
L6711
Remote voltage sense
23/50
9
Remote voltage sense
The device embeds a Remote Sense Buffer to sense remotely the regulated voltage without
any additional external components. In this way, the output voltage programmed is
regulated between the remote buffer inputs compensating motherboard or connector
losses. The very low-offset amplifier senses the output voltage remotely through the pins
FBR and FBG (FBR is for the regulated voltage sense while FBG is for the ground sense)
and reports this voltage internally at VSEN pin with unity gain eliminating the errors.
Keeping the FBR and FBG traces parallel and guarded by a power plane results in common
mode coupling for any picked-up noise.
If remote sense is not required, it is enough connecting the resistor RFB directly to the
regulated voltage: VSEN becomes not connected and still senses the output voltage
through the remote buffer. In this case the FBG and FBR pins must be connected anyway to
the regulated voltage (See Figure 8).
Warning:
The remote buffer is included in the trimming chain in order
to achieve ±0.5% accuracy (0.6% for the Hammer DAC) on the
output voltage when the RB is used: eliminating it from the
control loop causes the regulation error to be increased by
the RB offset worsening the device performances!
Figure 8.
Remote buffer connections
RB used (up to ±0.5% Accuracy)
RB Not Used (Precision worsened)
VID
FB
COMP
VSEN
64k
FBR
FBG
64k
RF
CF
RFB
To Vcore
(Remote Sense)
VID
FB
COMP
VSEN
64k
FBR
FBG
64k
RF
CF
RFB
To Vcore
相關(guān)PDF資料
PDF描述
L6711 2 A SWITCHING CONTROLLER, 178 kHz SWITCHING FREQ-MAX, PQFP48
L6714TR SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6712 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER
L6712_05 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER
L6712A 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER
L6712AD 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 2-Ph Interleaved 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(kāi)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
L6712ADTR 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 2-Ph Interleaved 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(kāi)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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