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參數資料
| 型號： | TC670ECH |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Tiny Predictive Fan Failure Detector |
| 中文描述： | 微型風扇故障檢測預測 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 469K |
| 代理商： | TC670ECH |
2002 Microchip Technology Inc.
DS21688B-page 1
TC670
Features
Fan Wear-out Detection for 2-Wire Linear
Controlled Fans
Replacement System for 3-Wire Fans
Fan Alert Signal when Fan Speed is below
Programmed Threshold
CLEAR Capability for Eliminating False Alarm
Low Operating Current, 90
μ
A (typ.)
V
DD
Range 3.0V to 5.5V
Available in a 6-Pin SOT-23 Package
Applications
Protection for Linear Controlled Fans
Power Supplies
Industrial Equipment
PCs and Notebooks
Data Storage
Data Communications Equipment
Instrumentation
Device Selection Table
Package Type
General Description
The TC670 is an integrated fan speed sensor that
predicts and/or detects fan failure, preventing thermal
damage to systems with cooling fans. When the fan
speed falls below a user specified level, the TC670
asserts an ALERT signal. With this design, a critical
minimum fan speed is determined by the user. The fan
alert level is then set with a resistor divider on the
THRESHOLD pin (Pin 1) of the TC670. When the
minimum fan speed is reached, the ALERT pin (Pin 5)
changes from a digital HIGH to LOW. This failure
detection works with all linear controlled 2-wire fans.
The TC670 eliminates the need for 3-wire fan solutions.
A
CLEAR
option can be used to reset the ALERT signal,
allowing the flexibility of connecting the ALERT output
of the TC670 with other Alert/FAULT interrupts in the
system. This feature can be implemented so that false
Fan Fault conditions do not initiate system shutdown.
The TC670 is specified to operate over the full
industrial temperature range of -40°C to +85°C. The
TC670 is offered in a SOT23-6 pin package and
consumes 90
μ
A (typ) during operation. The space
saving package and low power consumption make this
device an ideal choice for systems requiring fan speed
monitoring.
Typical Application Circuit
Part Number
Package
Temp. Range
TC670ECH
6-Pin SOT-23
-40°C to +85°C
2
5
SOT-23A-6
THRESHOLD
GND
CLEAR
SENSE
ALERT
V
DD
1
3
6
4
T
From
Microcontroller
5
6
C
SENSE
R
4
R
SENSE
+12V
ALERT
LED
FAN
DC
SENSE
ALERT
2
4
3
1
+5V
R
3
R
2
0.1
μ
F
V
DD
CLEAR
THRESHOLD
GND
Tiny Predictive Fan Failure Detector
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TC670ECHTR | 功能描述:馬達/運動/點火控制器和驅動器 Predictive Fan Failure Det RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TC670ECHTR | 制造商:Microchip Technology Inc 功能描述:IC CONTROLLER FAN MANAGEMENT 制造商:Microchip Technology Inc 功能描述:IC, CONTROLLER, FAN MANAGEMENT |
| TC670ECHTR | 制造商:Microchip Technology Inc 功能描述:Fan Management Controller IC Package/Cas |
| TC670ECHTR-CUT TAPE | 制造商:Microchip 功能描述:TC670 Series 3 to 5.5 V Tiny Predictive Fan Failure Detector - SOT-23-6 |
| TC68 | 功能描述:鋁質電解電容器 - 帶引線 60uF 350V RoHS:否 制造商:Kemet 引線類型: 電容:220 uF 容差:20 % 電壓額定值:25 V 工作溫度范圍: 端接類型:Radial 外殼直徑:8 mm 外殼長度:11 mm 引線間隔:5 mm 產品:General Purpose Electrolytic Capacitors 封裝:Bulk |
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