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| 型號： | AMC6821 |
| 英文描述： | Analog Monitor and Control Circuit |
| 中文描述： | 模擬監(jiān)視和控制電路 |
| 文件頁數(shù)： | 26/47頁 |
| 文件大小： | 547K |
| 代理商： | AMC6821 |
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P
INTERRUPT
The AMC6821 provides two interrupt output pins, OVR and SMBALERT.
Figure 21
shows the function of the
OVR pin and
Figure 24
illustrates the function of the SMBALERT pin.
OVR
OVREN
+V
AMC6821
Output
Latch
Set
Reset
LTC Bit
(Local temperature reaches the critcal shutdown threshold.)
Local Temperature < (Local-Critical-Temp
5 C)
- °
Output
Latch
Set
Reset
RTC Bit
(Remote temperature reaches the critcal shutdown threshold.)
Remote Temperature < (Remote-Critical-Temp
5 C)
- °
RTF
(Remote Temperature Sensor Failure)
Temperature Back in Limit
(status bit stays set)
High Limit
Temperature
Status Bit
SMBALERT
Cleared on Read
(Temperature below limit)
OVR Pin
AMC6821
SBAS386A–MAY 2006–REVISED MAY 2006
Figure 21. OVR Pin
Figure 22. SMBALERT Pin and Status Bits Behavior
OVR is an open-drain output pin that works as an over-critical temperature limit (shutdown threshold) indicator
and remote sensor failure indicator. Setting the OVREN bit of
Configuration Register 4
to '1' enables this pin;
clearing OVREN ('0') disables it. When disabled, the OVR pin is in a high-impedance status. When enabled, the
status is controlled by the over-critical temperature flag and remote sensor failure flag bits of the Status
Registers.
When the temperature is over the critical limit (shutdown threshold), the corresponding over-critical limit flag of
the Status Register (RTC for the remote channel and LTC for the local channel) is set ('1'). This flag is cleared
('0') when reading the Status Registers. Once cleared, this bit is not reasserted until the temperature falls 5
°
C
below the exceeded critical limit, even if the over-critical limit condition persists. When the temperature is equal
to or above the critical temperature limit, the OVR pin is asserted (active low) to indicate this critical condition.
As the over-critical temperature limit indicator, the OVR pin remains low once asserted until the measured
temperature falls 5
°
C below the exceeded critical limit.
26
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMC6821EVM | 功能描述:溫度傳感器開發(fā)工具 ANA MONITOR RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:Temperature Sensors and Control ICs 工具用于評估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流: |
| AMC6821EVM-PDK | 功能描述:溫度傳感器開發(fā)工具 THERMAL MGMT RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:Temperature Sensors and Control ICs 工具用于評估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流: |
| AMC6821-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:INTELLIGENT TEMPERATURE MONITOR AND PWM FAN CONTROLLER |
| AMC6821SDBQ | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Temp Monitoring and Fan Ctrl RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| AMC6821SDBQG4 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Temp Monitoring and Fan Ctrl RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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