参数资料
型号: ADT7468ARQZ-REEL
厂商: ON Semiconductor
文件页数: 41/81页
文件大小: 0K
描述: IC REMOTE THERMAL CTRLR 24QSOP
产品变化通告: MFG CHG Notification ADI to ON Semi
Product Obsolescence 11/Feb/2009
标准包装: 2,500
系列: dBCool®
功能: 风扇控制,温度监控器
传感器类型: 内部和外部
感应温度: -40°C ~ 120°C,外部传感器
精确度: ±2°C(最小值)
拓扑: ADC,比较器,风扇速度计数器,多路复用器,寄存器库
输出类型: SMBus?
输出警报:
输出风扇:
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 120°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-QSOP
包装: 带卷 (TR)
ADT7468
Recommended Implementation 1
Configuring the ADT7468 as shown in Figure 54 provides the
system designer with the following features:
8.
9.
VRM temperature using local temperature sensor.
CPU temperature measured using the Remote 1
temperature channel.
1.
2.
3.
4.
5.
6.
7.
Six VID inputs (VID0 to VID5) for VRM10 support.
Two PWM outputs for fan control of up to three fans. (The
front and rear chassis fans are connected in parallel.)
Three TACH fan speed measurement inputs.
V CC measured internally through Pin 4.
CPU core voltage measurement (V CORE ).
2.5 V measurement input used to monitor CPU current
(connected to V COMP output of ADP316x VRM controller).
This is used to determine CPU power consumption.
5 V measurement input.
FRONT
CHASSIS
FAN
TACH2
10. Ambient temperature measured through the Remote 2
temperature channel.
11. If not using VID5, this pin can be reconfigured as the 12 V
monitoring input.
12. Bidirectional THERM pin allows the monitoring of
PROCHOT output from an Intel P4 processor, for
example, or can be used as an overtemperature THERM
output.
13. SMBALERT system interrupt output.
PWM1
TACH1
CPU FAN
REAR
CHASSIS
FAN
PWM3
TACH3
VID[0:4]/VID[0.5]
5(VRM9)/6(VRM10)
D2+
D2–
THERM
PROCHOT
CPU
AMBIENT
TEMPERATURE
D1+
D1–
ADT7468
3.3VSB
5V
12V/VID5
SDA
SCL
ADP316x
VRM
CONTROLLER
V COMP
CURRENT
V CORE
GND
SMBALERT
ICH
Figure 54. Recommended Implementation 1
Rev. 3 | Page 41 of 81 | www.onsemi.com
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