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参数资料
| 型号： | L6713A |
| 厂商： | Holtek Semiconductor Inc. |
| 英文描述： | 2/3 Phase controller with embedded drivers for Intel VR10, VR11 and AMD 6 bit CPUs |
| 中文描述： | 2 / 3为英特尔VR10，VR11和AMD的嵌入式驱动器相控制器6位CPU |
| 文件页数： | 52/64页 |
| 文件大小： | 515K |
| 代理商： | L6713A |
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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 (
T).
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 (
TC) 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
αTk
NTC
DCR
---------------------------------------
2
++
+
=
TOB
TCMatching
V
AVPDyn
2
k
L
2
k
C
2
k
Ct
TC
()
2
++
N
------------------------------------------------------------
=
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相关代理商/技术参数 |
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|---|---|
| L6713A_0805 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2/3/4 phase controller with embedded drivers for Intel VR11.1 |
| L6713ATR | 功能描述:DC/DC 开关控制器 2/3 Phase controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6714 | 功能描述:功率驱动器IC 4 Phase Controller RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L6714TR | 功能描述:功率驱动器IC 4 Phase Controller RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装: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 |
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