TC648 Microchip, TC648 Datasheet - Page 3

• Manufacturer Part Number: TC648
• Description: Fan Speed Controller
• Manufacturer: Microchip

1.0
Absolute Maximum Ratings*
Supply Voltage ......................................................... 6V
Input Voltage, Any Pin... (GND – 0.3V) to (V
Package Thermal Resistance:
Specified Temperature Range ........... -40°C to +125°C
Storage Temperature Range.............. -65°C to +150°C
DC ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Unless otherwise specified, T
V
I
I
I
V
t
t
I
I
SENSE Input
V
OTF Output
V
V
V
V
V
V
V
V
V
Note 1:
DD
DD(SHDN)
IN
R
F
OL
OH
AS
DD
OUT
TH(SENSE)
OL
IN
C(MAX),
C(SPAN)
SHDN
REL
HYST
HAS
2002 Microchip Technology Inc.
Symbol
, V
PDIP (R
SOIC (R
MSOP (R
Output
AS
V
Inputs
ELECTRICAL
CHARACTERISTICS
OTF
Ensured by design, not tested.
JA
JA
Supply Voltage
Supply Current, Operating
Supply Current, Shutdown/
Auto-shutdown Mode
V
V
V
Sink Current at V
Source Current at V
Output
SENSE Input Threshold
Voltage with Respect to GND
Output Low Voltage
Voltage at V
Cycle and Overtemp. Fault
V
Auto-shutdown Threshold
Voltage Applied to V
Ensure Reset/Shutdown
Voltage Applied to V
Release Reset Mode
Hysteresis on V
Hysteresis on Auto-shutdown
Comparator
JA
)............................................. 125°C/W
) ............................................ 155°C/W
IN
OUT
OUT
C(MAX)
) .......................................... 200°C/W
, V
AS
Rise Time
Fall Time
- V
Input Leakage
Parameter
C(MIN)
IN
for 100% Duty
SHDN,
OUT
OUT
IN
IN
Output
V
to
to
REL
DD
V
V
V
+ 0.3V)
DD
C(MAX) ~
C(SPAN)
Min
-1.0
3.0
1.0
5.0
2.5
1.3
—
—
—
—
50
—
—
—
—
x 0.19
MIN
T
A
0.01 x V
T
MAX
2.65
Typ
*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 peri-
ods may affect device reliability.
0.5
1.4
25
70
70
—
—
—
—
—
—
—
—
—
—
, V
DD
DD
= 3.0V to 5.5V
V
V
DD
C(MAX)
Max
+1.0
0.3
5.5
1.0
90
2.8
1.5
—
—
50
50
—
—
—
—
x 0.13
Units
µsec I
µsec I
mA
mV
mV
µA
mA
mA
µA
V
V
V
V
V
V
V
V
Pins 6, 7 Open,
C
Pins 6, 7 Open;
Note 1
C
Note 1
V
V
Note 1
I
V
OH
OL
OL
OL
OH
DD
F
F
= 1 µF, V
=1 µF, V
= 1 mA, Note 1
= 2.5 mA
= 5 mA, Note 1
= 10% of V
= 5V
= 80% of V
Test Conditions
DS21448C-page 3
TC648
IN
IN
= 0.35V
= V
DD
DD
C(MAX)