TC653 Microchip Technology Inc., TC653 Datasheet - Page 8

• Manufacturer Part Number: TC653
• Description: Integrated Temperature Sensor & Brushless Dc Fan Controller With Fansense Detect & Over-temperature
• Manufacturer: Microchip Technology Inc.

TC652/TC653
5.0
DS21453B-page 8
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.
450
400
150
100
500
450
400
350
300
250
200
150
100
500
350
300
250
200
50
50
80
60
50
40
30
20
10
70
0
0
0
-50
0
0
FAULT, I
PWM, I
TYPICAL CHARACTERISTICS
1
1
-25
V
V
DD
V
I
DD
DD
DD
2
2
= 2.8V
SINK
= 5.6V
= 2.8V
0
TEMPERATURE (˚C)
3
SINK
vs. Temperature
3
25
vs. V
4
I
4
SINK
I
SINK
vs. V
50
5
V
5
OL
DD
(mA)
V
V
(mA)
DD
6
DD
75 100 125 150
, T
OL
6
= 5.5V
= 5.5V
= 2.7V
7
A
, T
7
= 25˚C
A
8
8
= 25˚C
9
9
10
10
T
OVER
PWM
FAULT
V
DD
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.0
0.1
3.0
2.5
2.0
1.5
1.0
0.5
0.0
5.0
0.0
5.0
0.0
5.0
0.0
SHDN is Connected to V
, I
0
T L
SOURCE
0
V
1
DD
Temp Accuracy vs. V
0.5
= 2.8V
2
TC652/3, Fan is Running
T 1
V
Start-Up Time
DD
1.0 1.5 2.0 2.5 3.0 3.5 4.0
3
= 5.6V
vs. (V
I
T
SOURCE
4
T 2
THRESHOLD
500msec/Div
5
DD
V
DD
6
- V
(mA)
T 3
= 5.5V
OH
7
V
DD
DD
), T
8
T 4
TH
= 2.7V
, T
A
9
= 25˚C
A
4.5
10
= 25˚C
T H
5.0
PWM
FAULT
PWM, I SOURCE vs. (V
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.0
V
FAULT, I
0.1
DD
0.9
1.0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.0
0.1
0
5.0
0.0
5.0
0.0
5.0
0.0
SHDN is Connected to V
0
V
1
DD
0
2
= 2.8V
2
SOURCE
TC653, Fan is Not Running
1
©
4
V
3
DD
2002 Microchip Technology Inc.
2
6
I
= 2.8V
SOURCE
4
3
I
SOURCE
vs. (V
8 10 12 14 16 18 20
5
4
V
6
1sec/Div
DD
(mA)
DD
DD
5
= 5.5V
(mA)
7
V
- V
DD
- V
6
8
= 5.5V
OH
OH
DD
7
9
), T
), T
, T
8
10
A
A
A
= 25˚C
9
= 25˚C
= 25˚C
10