參數(shù)資料
型號(hào)： TC649
廠商： Microchip Technology Inc.
英文描述： PWM Fan Speed Controller with Auto-Shutdown and FanSense Technology(風(fēng)扇監(jiān)控器帶自動(dòng)關(guān)斷功能)
中文描述： PWM風(fēng)扇帶自動(dòng)調(diào)速器關(guān)斷和FanSense科技（風(fēng)扇監(jiān)控器帶自動(dòng)關(guān)斷功能）
文件頁(yè)數(shù)： 9/28頁(yè)
文件大小： 478K
代理商： TC649
2002 Microchip Technology Inc.
DS21449C-page 9
TC649
5.0
TYPICAL APPLICATIONS
Designing with the TC649 involves the following:
(1) The temperature sensor network must be
configured to deliver 1.25V to 2.65V on V
IN
for 0%
to 100% of the temperature range to be regulated.
(2) The auto-shutdown temperature must be set
with a voltage divider on V
AS
.
(3) The output drive transistor and associated circuitry
must be selected.
(4) The SENSE network, R
SENSE
and C
SENSE
, must
be designed for maximum efficiency while
delivering adequate signal amplitude.
(5) If shutdown capability is desired, the drive require-
ments of the external signal or circuit must be
considered.
The TC642 demonstration and prototyping board
(TC642DEMO) and the TC642 Evaluation Kit
(TC642EV) provide working examples of TC649 cir-
cuits and prototyping aids. The TC642DEMO is a
printed circuit board optimized for small size and ease
of inclusion into system prototypes. The TC642EV is a
larger board intended for benchtop development and
analysis. At the very least, anyone contemplating a
design using the TC649 should consult the documen-
tation for both TC642EV (DS21403) and TC642DEMO
(DS21401).Figure 5-1 shows the base schematic for
the TC642DEMO.
FIGURE 5-1:
Typical Application Circuit.
FAULT
SENSE
NTC
R
1
R
2
R3
R
4
GND
*See cautions regarding Latch-up Considerations in Section 5.0, "Typical Applications".
**Optional. See Section 5.0, "Typical Applications" for details.
Notes:
Fan Fault
Shutdown
Shutdown**
Q
1
+12V
+5V*
V
DD
V
IN
V
AS
V
OUT
R
BASE
R
SENSE
C
SENSE
C
F
1 μF
C
F
TC649
Fan
C
B
0.01 μF
C
B
0.01 μF
C
B
1 μF
+
+5V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC649_13 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:PWM Fan Speed Controller with Auto-Shutdown and FanSensea?￠ Technology
TC649B 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:PWM Fan Speed Controllers With Auto-Shutdown, Fan Restart and FanSense⑩ Technology for Fault Detection
TC649BEOA 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 w/Rstrt Shtdn & Flt 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
TC649BEOA713 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:PWM Fan Speed Controllers With Auto-Shutdown, Fan Restart and FanSense⑩ Technology for Fault Detection
TC649BEOATR 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 w/Rstrt Shtdn & Flt 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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