參數(shù)資料
型號(hào)： L6713ATR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 2 A SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, PQFP64
封裝： 10 X 10 MM, TQFP-64
文件頁(yè)數(shù)： 51/64頁(yè)
文件大?。?/td> 801K
代理商： L6713ATR
L6713A
Tolerance band (TOB) definition
55/64
23
Tolerance band (TOB) definition
Output voltage load-line varies considering component process variation, system
temperature extremes, and age degradation limits. Moreover, individual tolerance of the
components also varies among designs: it is then possible to define a manufacturing
tolerance band (TOBManuf) that defines the possible output voltage spread across the
nominal load line characteristic.
TOBManuf can be sliced into different three main categories: Controller tolerance, external
current sense circuit tolerance and time constant matching error tolerance. All these
parameters can be composed thanks to the RSS analysis so that the manufacturing
variation on TOB results to be:
Output voltage ripple (VP=VPP/2) and temperature measurement error (VTC) must be added
to the manufacturing TOB in order to get the system tolerance band as follow:
All the component spreads and variations are usually considered at 3
σ. Here follows an
explanation on how to calculate these parameters for a reference L6713A application.
23.1
Controller tolerance (TOBController)
It can be further sliced as follow:
●
Reference tolerance. L6713A is trimmed during the production stage to ensure the
output voltage to be within kVID = ± 0.5 % (± 0.6 % for AMD DAC) over temperature and
line variations. In addition, the device automatically adds a -19 mV offset (Only for Intel
mode) avoiding the use of any external component. This offset is already included
during the trimming process in order to avoid the use of any external circuit to generate
this offsets and, moreover, avoiding the introduction of any further error to be
considered in the TOB calculation.
●
Current reading circuit. The device reads the current flowing across the inductor DCR
by using its dedicated differential inputs. The current sourced by the VRD is then
reproduced and sourced from the DROOP pin scaled down by a proper designed gain
as follow:
This current multiplied by the RFB resistor connected from FB pin vs. the load allows
programming the droop function according to the selected DCR/Rg gain and RFB
resistor. Deviations in the current sourced due to errors in the current reading, impacts
on the output voltage depending on the size of RFB resistor. The device is trimmed
during the production stage in order to guarantee a maximum deviation of kIFB = ± 1 μA
from the nominal value.
Controller tolerance results then to be:
TOB
Manuf
TOB
Controller
2
TOB
CurrSense
2
TOB
TCMatching
2
++
=
TOB
Manuf
V
P
V
TC
++
=
I
DROOP
DCR
Rg
------------- I
OUT
=
TOB
Controller
VID
19mV
–
() k
VID
[]
2
k
IDROOP
R
FB
()
2
+
=
相關(guān)PDF資料
PDF描述
L6716TR DUAL SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, QCC48
L6716 DUAL SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, QCC48
L6722 SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, QCC36
L6722TR SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, QCC36
L9407F SPECIALTY ANALOG CIRCUIT, PSFM8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6714 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
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(kāi)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(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
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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*