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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： | 50/64页 |
| 文件大小： | 515K |
| 代理商： | L6713ATR |
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Thermal monitor
L6713A
54/64
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Thermal monitor
L6713A 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 RTM. 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 27 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 Monitor
function is enabled if VCC>>UVLOVCC.
Figure 27. 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
M
V
o
lt
ag
e[
V
]
Rtm = 330
Rtm = 390
Rtm = 470
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 |
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| 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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