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參數(shù)資料
| 型號： | L6713ATR |
| 廠商： | 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為英特爾VR10，VR11和AMD的嵌入式驅動器相控制器6位CPU |
| 文件頁數(shù)： | 44/64頁 |
| 文件大?。?/td> | 515K |
| 代理商： | L6713ATR |
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L6713A
Over current protection
49/64
18
Over current protection
The device limits the total delivered current turning OFF all the MOSFETs as soon as the
delivery current is higher than an adjustable thresholds.This condition is lathed and power
supply or OUTEN pin cycling is required to restart operations.
The device sources a copy of IDROOP current from the OCSET pin: connecting a resistor
ROCP between OCSET pin and SGND the voltage at the OCSET pin depends on the total
delivery output current, as shown in the following relationships:
Figure 23. OCP Connections (left) and waveforms (right).
As soon as the OCSET pin voltage is higher than the internal fixed thresholds VOCTH (1.24V
TYP, See Table 4), the device turns OFF all the MOSFETs and latches the condition.
The OCP threshold can be easily programmed through the ROCP resistor:
The Output Over Current threshold has to be programmed, by designing the ROCP resistors,
to a safe value, in order to be sure that the device doesn't enter OCP during normal
operation of the device. This value must take into consideration also the extra current
needed during the Dynamic VID Transition ID-VID and, since the device reads across
inductor DCR, the process spread and temperature variations of these sensing elements.
Moreover, since also the internal threshold spreads, the ROCP design has to consider the
minimum value VOCTH(min) of the threshold as follow:
where IOUT(OCP) is the total delivery current for the Over Current condition and it must be
calculated considering the maximum delivery current and ID-VID (when D-VID are
implemented):
When it is necessary, filter OCSET pin to introduce a small delay in the Over Current
intervention.
V
OCSET
R
OCP
I
DROOP
R
OCP
DCR
R
G
-------------
I
OUT
==
OCP
COMPARATOR
I
DROOP
ROCP
OCSET
COCP
VOCTH=1.240V
UGATE
LGATE
OCSET
VOUT
R
OCP
R
G
DCR
-------------
V
OCTH
I
OUT OCP
()
---------------------------
=
R
OCP
R
G
DCR max
()
------------------------------
V
OCTH min
()
I
OUT OCP
()
----------------------------------
=
I
OUT OCP
() IOUT
MAX
I
DVID
–
+
>
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| L6714 | 功能描述:功率驅動器IC 4 Phase Controller RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L6714TR | 功能描述:功率驅動器IC 4 Phase Controller RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 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:開關變換器、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 開關頻率:1 MHz 工作溫度范圍: 安裝風格: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 |
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