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参数资料
| 型号： | L6713ATR |
| 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： | 51/64页 |
| 文件大小： | 515K |
| 代理商： | L6713ATR |
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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 -19mV 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 = ±1A
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
+
=
相关PDF资料 |
PDF描述 |
|---|---|
| L6713A | 2/3 Phase controller with embedded drivers for Intel VR10, VR11 and AMD 6 bit CPUs |
| L6X8E6 | 600 V, 0.8 A, 4 QUADRANT LOGIC LEVEL TRIAC, TO-92 |
| L8C201JC15 | x9 Asynchronous FIFO |
| L8C202JI10 | x9 Asynchronous FIFO |
| L8C202JI12 | x9 Asynchronous FIFO |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| L6716TR | 功能描述:开关变换器、稳压器与控制器 2/3/4 phase CNTRL Embedded Drivers RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装: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 |
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