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參數(shù)資料
| 型號： | L6711 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 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 |
| 文件頁數(shù)： | 16/50頁 |
| 文件大?。?/td> | 679K |
| 代理商： | L6711 |
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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
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| 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 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L6711_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3 Phase controller with dynamic VID and selectable DACs |
| L6711TR | 功能描述:DC/DC 開關控制器 3 PHASE CONTROLLER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| 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 |
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