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參數(shù)資料
| 型號(hào)： | TC655 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Dual SMBus⑩ PWM Fan Speed Controllers With Fan Fault Detection |
| 中文描述： | 雙PWM風(fēng)扇的SMBus⑩故障檢測(cè)與風(fēng)扇轉(zhuǎn)速控制器 |
| 文件頁(yè)數(shù)： | 3/36頁(yè) |
| 文件大?。?/td> | 706K |
| 代理商： | TC655 |
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2002 Microchip Technology Inc.
DS21734A-page 3
TC654/TC655
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings *
V
DD
..................................................................................6.5 V
Input Voltages ....................................-0.3 V to (V
DD
+ 0.3 V)
Output Voltages .................................-0.3 V to (V
DD
+ 0.3 V)
Storage temperature.....................................-65°C to +150°C
Ambient temp. with power applied................-40°C to +125°C
Maximum Junction Temperature, T
J
.............................150°C
ESD protection on all pins
..................................................≥
4 kV
*
Notice:
Stresses above those listed under “Maximum rat-
ings” may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational listings of this specification is not implied. Expo-
sure to maximum rating conditions for extended periods may
affect device reliability.
PIN FUNCTION TABLE
Name
Function
V
IN
C
F
SCLK
SDA
GND
FAULT
SENSE2
SENSE1
V
OUT
V
DD
Analog Input
Analog Output
Serial Clock Input
Serial Data In/Out (Open Drain)
Ground
Digital (Open Drain) Output
Analog Input
Analog Input
Digital Output
Power Supply Input
ELECTRICAL SPECIFICATIONS
Electrical Characteristics:
Unless otherwise noted, all limits are specified for V
DD
= 3.0 V to 5.5 V,
-40°C <T
A
< +85°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Supply Voltage
Operating Supply Current
Shutdown Mode Supply Current
V
OUT
PWM Output
V
OUT
Rise Time
V
OUT
Fall Time
Sink Current at V
OUT
Output
Source Current at V
OUT
Output
PWM Frequency
V
IN
Input
V
IN
Input Voltage for 100% PWM
duty-cycle
V
C(MAX)
- V
C(MIN)
V
IN
Input Resistance
V
IN
Input Leakage Current
SENSE Input
SENSE Input Threshold Voltage with
Respect to GND
FAULT Output
FAULT Output LOW Voltage
FAULT Output Response Time
Fan RPM-to-Digital Output
Fan RPM ERROR
Note 1:
Not production tested, ensured by design, tested during characterization.
2:
For 5.0 V > V
DD
≤
5.5 V, the limit for V
IH
= 2.2 V.
V
DD
I
DD
3.0
—
—
—
150
5
5.5
300
10
V
μA
μA
Pins 7, 8, 9 Open
Pins 7, 8, 9 Open
I
DDSHDN
t
R
t
F
I
OL
I
OH
F
—
—
1.0
5.0
26
—
—
—
—
30
50
50
—
—
34
μsec
μsec
mA
mA
Hz
I
OH
= 5 mA,
Note 1
I
OL
= 1 mA,
Note 1
V
OL
= 10% of V
DD
V
OH
= 80% of V
DD
C
F
= 1 μF
V
C(MAX)
2.45
2.6
2.75
V
V
CRANGE
1.25
—
-1.0
1.4
10M
—
1.55
—
+1.0
V
μA
V
DD
= 5.0 V
I
IN
V
THSENSE
80
100
120
mV
V
OL
t
FAULT
—
—
—
2.4
0.3
—
V
I
OL
= 2.5 mA
sec
-15
—
+15
%
RPM > 1600
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