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參數資料
型號: TC670ECHTR
廠商: Microchip Technology
文件頁數: 1/14頁
文件大小: 354K
描述: IC FAN FAILURE DETECTOR SOT23A-6
標準包裝: 1
功能: 風扇控制,溫度監控器
傳感器類型: 內部
感應溫度: -40°C ~ 85°C
拓撲: 振蕩器
輸出類型: 開路漏極
輸出警報:
輸出風扇:
電源電壓: 3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-6
供應商設備封裝: SOT-23-6
包裝: 標準包裝
產品目錄頁面: 683 (CN2011-ZH PDF)
其它名稱: TC670ECHTRDKR
?2003 Microchip Technology Inc.
DS21688C-page 1
M
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 礎 (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
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
 sig-
nal, allowing the flexibility of connecting the ALERT
output of the TC670 with other ALERT/FAULT inter-
rupts 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癈 to +85癈. The
TC670 is offered in a 6-pin SOT-23 pin package and
consumes 90 礎 (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
2
5
SOT-23A-6
THRESHOLD
GND
CLEAR
SENSE
ALERT
V
DD
1
3
6
4
From
5
6
C
SENSE
R
4
R
SENSE
+12V
ALERT
LED
DC
FAN
DC
FAN
SENSE
ALERT
2
4
3
1
+5V
R
3
R
2
0.1 礔
V
DD
CLEAR
THRESHOLD
GND
Microcontroller
Tiny Predictive Fan Failure Detector
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參數描述
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
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