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參數(shù)資料
| 型號： | TC650DAVUA |
| 廠商： | Microchip Technology Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert |
| 中文描述： | 微型集成溫度傳感器 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 440K |
| 代理商： | TC650DAVUA |
2002 Microchip Technology Inc.
DS21450B-page 3
TC650/TC651
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Input Voltage (V
DD
to GND)...................................+6V
Output Voltage (OUT to GND) .................................6V
Voltage On Any Pin.......(GND – 0.3V) to (V
DD
+ 0.3V)
Package Thermal Resistance (
θ
JA
)
..............250
°
C/W
Operating Temperature Range ..........-40
°
C to +125
°
C
Storage Temperature .........................-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
periods may affect device reliability.
TC650/TC651 ELECTRICAL SPECIFICATIONS
Note 1:
Transition from 90% to 100% Duty Cycle.
Electrical Characteristics:
V
DD
= 2.8V to 5.5V, SHDN = V
DD
, T
A
= -40
°
C to 125
°
C unless otherwise specified.
Symbol
Parameter
Min
Typ.
Max
Units
Test Conditions
V
DD
I
DD
Supply Voltage
Supply Current
2.8
—
—
50
5.5
90
V
μ
A
PWM, T
OVER
are open
SHDN Input
V
IH
V
IL
SHDN Input High Threshold
SHDN Input Low Threshold
65
—
—
—
—
15
%V
DD
%V
DD
PWM Output
V
OL
V
OH
t
R
PWM Output Low Voltage
PWM Output High Voltage
PWM Rise Time
—
—
—
10
0.3
—
—
V
V
I
SINK
= 1mA
I
SOURCE
= 5mA
I
OH
= 5mA, 1nF from
PWM to GND
I
OL
= 1mA, 1nF from
PWM to GND
V
DD
- 0.5
—
μ
sec
t
F
PWM Fall Time
—
10
—
μ
sec
f
OUT
t
STARTUP
PWM Frequency
Start-up Time
10
—
15
—
—
Hz
sec
32/f
OUT
V
DD
Rises from GND,
or SHDN Released
Temperature Accuracy
T
H ACC
(T
H –
T
L
)
ACC
High Temperature Accuracy
Temp. Range Accuracy
T
H
– 3
-1.0
-2.5
—
T
H
—
—
T
H
+ 3
+1.0
+2.5
—
°
°
C
°
C
°
C
Note 1
(T
H
- T
L
)
≤
20
°
C
(T
H
- T
L
)
≥
20
°
C
TC651 Only
T
HYST
Auto-shutdown Hysteresis
(T
H
-T
L
)/5
T
OVER
Output
V
HIGH
V
LOW
T
OVER ACC
T
OVER HYST
T
OVER
Output High Voltage
T
OVER
Output Low Voltage
Absolute Accuracy
Trip Point Hysteresis
V
DD
- 0.5
—
—
—
—
—
—
0.4
—
—
V
V
°
C
°
C
I
SOURCE
= 1.2mA
I
SINK
= 2.5mA
At Trip Point
T
H
+ 10
5
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