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參數(shù)資料
| 型號(hào)： | TC646VPA |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology |
| 中文描述： | PWM風(fēng)扇帶自動(dòng)調(diào)速器關(guān)斷和FanSense⑩技術(shù) |
| 文件頁(yè)數(shù)： | 10/28頁(yè) |
| 文件大小： | 473K |
| 代理商： | TC646VPA |
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TC646
DS21446C-page 10
2002 Microchip Technology Inc.
5.0
TYPICAL APPLICATIONS
Designing with the TC646 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 TC646 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 TC646 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
R
3
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:
Thermal
Shutdown
Shutdown**
Q
1
+12V
+5V*
V
DD
V
IN
V
AS
V
OUT
R
BASE
R
SENSE
C
SENSE
C
F
1
μ
F
C
F
TC646
Fan
C
B
0.01
μ
F
C
B
0.01
μ
F
C
B
1
μ
F
4
5
7
6
8
1
3
2
+5V
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| TC646VUA | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Shtdn & Fault Dtct RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)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 |
| TC646VUA713 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Shtdn & Fault Dtct RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)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 |
| TC647 | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:PWM Fan Speed Controller with FanSense Technology |
| TC647_13 | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:PWM Fan Speed Controller with FanSensea?￠ Technology |
| TC647B | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:PWM Fan Speed Controllers With Minimum Fan Speed, Fan Restart and FanSense⑩ Technology for Fault Detection |
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