TC6501 MICROCHIP [Microchip Technology], TC6501 Datasheet - Page 5

• Manufacturer Part Number: TC6501
• Description: Ultra Small Temperature Switches with Pin Selectable Hysteresis
• Manufacturer: MICROCHIP [Microchip Technology]

3.0
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
3.1
Connect the device ground pins directly to the PCB
ground and minimize the length of the connection. The
thermal resistance to the die is at a minimum at Pin 2.
3.2
Either 2°C (GND) or 10°C (V
selected by connecting HYST to GND or V
3.3
A 100 pF or greater decoupling capacitor from V
GND is recommended.
3.4
The voltage at the T
level if the sensor detects a temperature that is greater
than the factory-programmed threshold temperature.
Because this is an open-drain output, an external pull-
up resistor is required (a 100 k
recommended). The voltage on this pin can be higher
than V
absolute maximum input voltage of 7.0V.
TC6501
2004 Microchip Technology Inc.
1, 2
—
—
—
3
4
5
CC
PIN DESCRIPTIONS
Ground
Hysteresis Input (HYST)
Supply Input (V
Open-Drain, Active-Low Output
(TC6501) (T
, though the voltage must not exceed the
TC6502
1, 2
—
—
—
3
4
5
PIN FUNCTION TABLE
OVER
TC6503
OVER
1, 2
—
—
—
3
4
5
pin is equal to a logic-low
CC
)
)
CC
TC6504
) of hysteresis is
pull-up resistor is
1, 2
—
—
—
3
4
5
CC
.
Symbol
T
T
T
T
HYST
GND
UNDER
UNDER
V
OVER
OVER
CC
CC
to
Ground
Hysteresis Input
Supply Input (+2.7V to +5.5V)
Open-Drain, Active-Low Output
Push/Pull Active-High Output
Open-Drain, Active-Low Output
Push/Pull Active-High Output
3.5
The voltage at T
sensor detects a temperature greater than the factory-
programmed threshold temperature.
3.6
The voltage at the T
level if the sensor detects a temperature that is less
than the factory-programmed threshold temperature.
Because this is an open-drain output, an external pull-
up resistor is required (a 100 k
recommended). The voltage on this pin can be higher
than V
absolute maximum input voltage of 7.0V
3.7
The voltage at T
the sensor detects a temperature less than the factory-
programmed threshold temperature.
CC
Push/Pull Active-High Output
(TC6502) (T
Open-Drain, Active-Low Output
(TC6503) (T
Push/Pull Active-High Output
(TC6504) (T
, though the voltage must not exceed the
OVER
UNDER
Description
TC6501/2/3/4
UNDER
is equal to a logic-high level if the
OVER
is equal to a logic-high level if
UNDER
UNDER
pin is equal to a logic-low
)
)
)
pull-up resistor is
DS21451D-page 5