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參數(shù)資料
| 型號： | L6714 |
| 廠商： | 意法半導體 |
| 英文描述： | 4 phase controller with embedded drivers for Intel VR10, VR11 and AMD 6Bit CPUs |
| 中文描述： | 4英特爾VR10，VR11和AMD的6位嵌入式CPU的司機相控制器 |
| 文件頁數(shù)： | 60/70頁 |
| 文件大?。?/td> | 572K |
| 代理商： | L6714 |
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Thermal monitor
L6714
60/70
22
Thermal monitor
L6714 continuously senses the system temperature through TM pin: depending on the
voltage sensed by this pin, the device sets free the VR_FAN pin as a warning and, after
further temperature increase, also the VR_HOT pin as an alarm condition.
These signals can be used to give a boost to the system fan (VR_FAN) and improve the VR
cooling, or to initiate the CPU low power state (VR_HOT) in order to reduce the current
demand from the processor so reducing also the VR temperature. In a different manner,
VR_FAN can be used to initiate the CPU low power state so reducing the processor current
requirements and VR_HOT to reset the system in case of further dangerous temperature
increase.
Thermal sensors is external to the PWM control IC since the controller is normally not
located near the heat generating components: it is basically composed by a NTC resistor
and a proper biasing resistor R
TM
. NTC must be connected as close as possible at the
system hot-spot in order to be sure to control the hottest point of the VR.
Typical connection is reported in
Figure 25
that also shows how the trip point can be easily
programmed by modifying the divider values in order to cross the VR_FAN and VR_HOT
thresholds at the desired temperatures.
Both VR_HOT and VR_FAN are active high and open drain outputs. Thermal Monitoring
Output are enabled if Vcc > UVLO
VCC
.
Figure 25. System thermal monitor typical connections.
TM
Sense Element
(Place remotely, near Hot Spot)
+5V
R
TM
TM Voltage - NTC=3300/4250K
2.00
2.20
2.40
2.60
2.80
3.00
3.20
3.40
3.60
3.80
4.00
80
85
90
95
100
105
110
115
120
Temperature [degC]
T
Rtm = 330
Rtm = 390
Rtm = 470
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6714TR | 4 phase controller with embedded drivers for Intel VR10, VR11 and AMD 6Bit CPUs |
| L6726A | Single phase PWM controller |
| L6726ATR | Single phase PWM controller |
| L6727 | Single phase PWM controller |
| L6727TR | Single phase PWM controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6714TR | 功能描述:功率驅(qū)動器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(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 開關(guān)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 |
| L6717A | 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller 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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