TC653 Microchip Technology Inc., TC653 Datasheet - Page 3

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

1.0
Absolute Maximum Ratings*
Input Voltage (V
Output Voltage (OUT to GND) ................................. 6V
Voltage On Any Pin ....... (GND – 0.3V) to (V
Package Thermal Resistance (θ
Operating Temperature Range ......... -40°C to +125°C
Storage Temperature ......................... -65°C to +150°C
TC652/TC653 ELECTRICAL SPECIFICATIONS
©
Electrical Characteristics: V
V
I
SHDN Input
V
V
PWM Output
V
V
t
t
f
t
V
Temperature Accuracy
T
(T
T
FAULT Output
V
V
tmp
T
V
V
T
T
Note
DD
R
F
OUT
STARTUP
H ACC
HYST
OVER
OVER ACC
OVER HYST
DD
IH
IL
OL
OH
TH (SENSE)
HIGH
LOW
HIGH
LOW
2002 Microchip Technology Inc.
H –
Symbol
T
L
Output
1:
)
ACC
ELECTRICAL
CHARACTERISTICS
Transition from 90% to 100% Duty Cycle.
Supply Voltage
Supply Current
SHDN Input High Threshold
SHDN Input Low Threshold
PWM Output Low Voltage
PWM Output High Voltage
PWM Rise Time
PWM Fall Time
PWM Frequency
Start-up Time
Sense Input
High Temperature Accuracy
Temp. Range Accuracy
Auto-shutdown Hysteresis
FAULT Output High Voltage
FAULT Output Low Voltage
Missing Pulse Detector
Time-out
T
T
Absolute Accuracy
Trip Point Hysteresis
OVER
OVER
DD
to GND) ................................... +6V
Output High Voltage
Output Low Voltage
Parameter
DD
= 2.8V to 5.5V, SHDN = V
JA
)
........... 250°C/W
DD
+ 0.3V)
V
V
V
DD
DD
DD
T
Min
-1.0
-2.5
H
2.8
65
10
—
—
—
—
—
—
—
—
—
—
—
—
—
– 0.5
– 0.5
– 0.5
- 3
DD
, T
A
= -40°C to 125°C unless otherwise specified.
(T
*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.
T
32/f
H
H
Typ.
– T
50
10
10
15
70
T
—
—
—
—
—
—
—
—
—
—
—
—
+ 10
5
H
OUT
L
)/5
32/f
T
Max
+1.0
+2.5
H
5.5
0.3
0.4
0.4
90
15
—
—
—
—
—
—
—
—
—
—
—
—
+ 3
OUT
TC652/TC653
%V
%V
Units
µsec
µsec
Sec
sec
mV
µA
°C
°C
°C
°C
°C
Hz
°C
V
V
V
V
V
V
V
DD
DD
PWM, FAULT, T
open
I
I
I
PWM to GND
I
PWM to GND
V
or SHDN Released
Sense Input Threshold
Voltage with Repect to
Ground
Note 1
(T
(T
TC653 Only
I
I
I
I
At Trip Point
SINK
SOURCE
OH
OL
SOURCE
SINK
SOURCE
SINK
DD
H
H
= 1mA, 1nF from
= 5mA, 1nF from
– T
– T
Rises from GND,
Test Conditions
= 1mA
= 2.5mA
= 2.5mA
L
L
DS21453B-page 3
) ≥ 20°C
) ≤ 20°C
= 5mA
= 1.2mA
= 1.2mA
OVER
are