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TC650AGVUA

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
TC650/TC651
DS21450D-page 4 2001-2012 Microchip Technology Inc.
TEMPERATURE CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, V
DD
= 2.8V to 5.5V, SHDN = V
DD
, T
A
= -40C to +125C.
Parameters Sym Min Typ Max Units Conditions
Temperature Ranges
Specified Temperature Range T
A
–40 — +125 °C
Maximum Junction Temperature T
J
——+150°C
Storage Temperature Range T
A
–65 — +150 °C
Package Thermal Resistances
Thermal Resistance, 8L-MSOP
JA
—206.3 — °C/W
2001-2012 Microchip Technology Inc. DS21450D-page 5
TC650/TC651
2.0 TYPICAL PERFORMANCE CURVES
Note: Unless otherwise indicated, V
DD
= 2.8V to 5.5V, SHDN = V
DD
, T
A
= –40C to +125C.
FIGURE 2-1: I
DD
vs. Temperature.
FIGURE 2-2: PWM, I
SINK
vs. V
OL
.
FIGURE 2-3: T
OVER
, I
SOURCE
vs.
(V
DD
– V
OH
).
FIGURE 2-4: Temperature Accuracy vs.
V
TH
.
FIGURE 2-5: PWM, I
SOURCE
vs.
(V
DD
– V
OH
).
Note: The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
90
80
70
60
50
40
30
20
10
0
-50
0
25
-25
50
75 100 125 150
TEMPERATURE (°C)
I
DD
(µA)
V
DD
= 2.7
V
DD
=
5.6
0
123 4 5
6
7
8
910
V
OL
(mV)
I
SINK
(mA)
V
DD
= 2.8V
V
DD
= 5.5V
0.0
50
100
150
200
250
300
350
400
450
500
T
A
= +25°C
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
123 4 5
6
7
8
910
V
DD
- V
OH
(V)
I
SOURCE
(mA)
V
DD
= 2.8V
V
DD
= 5.5V
T
A
= +25°C
3.0
2.5
2.0
1.5
1.0
0.5
0.0
T
L
T
1
T
2
T
3
T
4
T
H
T
THRESHOLD
Temp Accuracy (°C)
V
DD
= 2.7
V
DD
= 5.6
0
246 810
12
14
16
18 20
V
DD
- V
OH (V)
I
SOURCE
(mA)
V
DD
= 2.8V
V
DD
= 5.5V
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
T
A
= +25°C
TC650/TC651
DS21450D-page 6 2001-2012 Microchip Technology Inc.
3.0 PIN DESCRIPTION
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1: PIN FUNCTION TABLE
3.1 Power Supply Input
May be independent of fan power supply.
3.2 Fan Shutdown, Active-low Input
During Shutdown mode, the chip still monitors
temperature. T
OVER
is low if temperature rises above
factory set point.
3.3 Ground
Ground return for all TC650/TC651 functions.
3.4 Overtemperature Alert
Active-low output.
3.5 PWM Fan Drive Output
Pulse width modulated rail-to-rail logic output. Nominal
frequency is 15 Hz.
Pin No. Symbol Description
1V
DD
Power Supply Input
2 NC No Internal Connect
3 SHDN Fan Shutdown, Active-low Input
1 = Fan in normal operation
0 = Fan in shutdown
4 GND Ground
5 NC No Connect
6 T
OVER
Overtemperature Alert, Active-low Output
1 = Overtemperature condition does not exist
0 = The device is in the overtemperature condition. The fan is driven at 100%.
Potential exists for system over-heating
7 GND Ground
8 PWM PWM Fan Drive Output
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

TC650AGVUA

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Board Mount Temperature Sensors W/ Over Temp Alert
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