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参数资料
| 型号： | TC642 |
| 厂商： | Microchip Technology Inc. |
| 英文描述： | PWM Fan Speed Controller with FanSense⑩ Technology |
| 中文描述： | 与FanSense PWM风扇速度控制器⑩技术 |
| 文件页数： | 3/28页 |
| 文件大小： | 485K |
| 代理商： | TC642 |
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2002 Microchip Technology Inc.
DS21444C-page 3
TC642
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage.........................................................6V
Input Voltage, Any Pin....(GND – 0.3V) to (V
DD
+0.3V)
Package Thermal Resistance:
PDIP (R
θ
JA
).............................................125°C/W
SOIC (R
θ
JA
) ............................................155°C/W
MSOP (R
θ
JA
) ..........................................200°C/W
Specified Temperature Range ...........-40°C to +125°C
Storage Temperature Range..............-65°C to +150°C
*Stresses above those listed under "Absolute Maximum Rat-
ings" may cause permanent damage to the device. These are
stress ratings only and functional operation of the device at
these or any other conditions above those indicated in the
operation sections of the specifications is not implied. Expo-
sure to absolute maximum rating conditions for extended peri-
ods may affect device reliability.
ELECTRICAL SPECIFICATIONS
Electrical Characteristics:
T
MIN
< T
A
< T
MAX
, V
DD
= 3.0V to 5.5V, unless otherwise specified.
Note 1:
Ensured by Design, not tested.
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
V
DD
I
DD
Supply Voltage
3.0
—
5.5
V
Supply Current, Operating
—
0.5
1.0
mA
Pins 6, 7 Open,
C
F
= 1 μF, V
IN
= V
C(MAX)
Pins 6, 7 Open,
C
F
= 1 μF, V
MIN
= 0.35V,
Note 1
I
DD(SHDN)
Supply Current, Shutdown Mode
—
25
—
μA
I
IN
V
IN
,
V
MIN
Input Leakage
- 1.0
—
+1.0
μA
Note 1
V
OUT
Output
t
R
t
F
t
SHDN
V
OUT
Rise Time
V
OUT
Fall Time
Pulse Width (On V
MIN
) to
Clear Fault Mode
—
—
50
μsec
I
OH
= 5 mA,
Note 1
I
OL
= 1 mA,
Note 1
V
SHDN
, V
HYST
Specifications,
Note 1
—
—
50
μsec
30
—
—
μsec
I
OL
I
OH
Sink Current at V
OUT
Output
Source Current at V
OUT
Output
1.0
—
—
mA
V
OL
= 10% of V
DD
V
OH
= 80% of V
DD
5.0
—
—
mA
V
IN
, V
MIN
Inputs
V
C(MAX),
V
OTF
Input Voltage at V
IN
or V
MIN
for 100% PWM Duty Cycle
2.5
2.65
2.8
V
V
C(SPAN)
V
SHDN
V
C(MAX)
- V
C(MIN)
Voltage Applied to V
MIN
to
ensure Shutdown Mode
1.3
1.4
1.5
V
—
—
V
DD
x 0.13
V
V
REL
Voltage Applied to V
MIN
to
Release Shutdown Mode
V
DD
x 0.19
—
—
V
V
DD
= 5V
Pulse Width Modulator
F
PWM
PWM Frequency
26
30
34
Hz
C
F
= 1.0 μF
SENSE Input
V
TH(SENSE)
SENSE Input Threshold
Voltage with Respect to GND
50
70
90
mV
Note 1
FAULT Output
V
OL
t
MP
t
STARTUP
t
DIAG
Output Low Voltage
—
—
0.3
V
I
OL
= 2.5 mA
Missing Pulse Detector Timer
—
32/F
—
Sec
Start-up Timer
—
32/F
—
Sec
Diagnostic Timer
—
3/F
—
Sec
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|---|---|
| TC642EV | PWM Fan Speed Controller with FanSense⑩ Technology |
| TC654EUN | Dual SMBus⑩ PWM Fan Speed Controllers With Fan Fault Detection |
| TC655EUN | Dual SMBus⑩ PWM Fan Speed Controllers With Fan Fault Detection |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC642_13 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PWM Fan Speed Controller with FanSensea?￠ Technology |
| TC642B | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PWM Fan Speed Controllers With Minimum Fan Speed, Fan Restart and FanSense⑩ Technology for Fault Detection |
| TC642B_13 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PWM Fan Speed Controllers With Minimum Fan Speed, Fan Restart and FanSensea?￠ Technology for Fault Detection |
| TC642BEOA | 功能描述:马达/运动/点火控制器和驱动器 w/Rstrt & Flt Dtct RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TC642BEOA713 | 功能描述:马达/运动/点火控制器和驱动器 w/Rstrt & Flt Dtct RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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