參數(shù)資料
型號(hào)： L6713ATR
廠商： STMICROELECTRONICS
元件分類(lèi)： 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)： 52/64頁(yè)
文件大小： 801K
代理商： L6713ATR
Tolerance band (TOB) definition
L6713A
56/64
23.2
Ext. current sense circuit tolerance (TOBCurrSense)
It can be further sliced as follow:
●
Inductor DCR Tolerance (kDCR). Variations in the inductor DCR impacts on the output
voltage since the device reads a current that is different from the real current flowing
into the sense element. As a results, the controller will source a IDROOP current different
from the nominal. The results will be an AVP different from the nominal in the same
percentage as the DCR is different from the nominal. Since all the sense elements
results to be in parallel, the error related to the inductor DCR has to be divided by the
number of phases (N).
●
Trans-conductance resistors tolerance (kRg). Variations in the Rg resistors impacts in
the current reading circuit gain and so impacts on the output voltage. The results will be
an AVP different from the nominal in the same percentage as the Rg is different from
the nominal. Since all the sense elements results to be in parallel, and so the three
current reading circuits, the error related to the Rg resistors has to be divided by the
number of phases (N).
●
NTC initial accuracy (kNTC_0). Variations in the NTC nominal value at room temperature
used for the thermal compensation impacts on the AVP in the same percentage as
before. In addition, the benefit of the division by the number of phases N cannot be
applied in this case.
●
NTC temperature accuracy (kNTC). NTC variations from room to hot also impacts on
the output voltage positioning. The impact is bigger as big is the temperature variation
from room to hot (
ΔT).
All these parameters impacts the AVP, so they must be weighted on the maximum voltage
swing from zero load up to the maximum electrical current (VAVP). Total error from external
current sense circuit results:
23.3
Time constant matching error tolerance (TOBTCMatching)
●
Inductance and capacitance tolerance (kL, kC). Variations in the inductance value and
in the value of the capacitor used for the time constant matching causes over/under
shoots after a load transient appliance. This impacts the output voltage and then the
TOB. Since all the sense elements results to be in parallel, the error related to the time
constant mismatch has to be divided by the number of phases (N).
●
Capacitance temperature variations (kCt). The capacitor used for time constant
matching also vary with temperature (
ΔT
C) impacting on the output voltage transients
ad before. Since all the sense elements results to be in parallel, the error related to the
time constant mismatch has to be divided by the number of phases (N).
All these parameters impact the dynamic AVP, so they must be weighted on the maximum
dynamic voltage swing (Idyn). Total error due to time constant mismatch results:
TOB
CurrSense
V
AVP
2
k
DCR
2
N
--------------
k
Rg
2
N
---------
k
NTC0
2
αΔTk
NTC
DCR
----------------------------------
2
++
+
=
TOB
TCMatching
V
AVPDyn
2
k
L
2
k
C
2
k
Ct
ΔTC
()
2
++
N
----------------------------------------------------------
=
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(lèi)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(lèi)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

*
*
*