MCP9509C MICROCHIP [Microchip Technology], MCP9509C Datasheet - Page 9

• Manufacturer Part Number: MCP9509C
• Description: Resistor-Programmable Temperature Switches
• Manufacturer: MICROCHIP [Microchip Technology]

3.0
TABLE 3-1:
3.1
This pin is used to connect a resistor between the SET
and GND pins to select the temperature trip point
(T
from
Table
3.2
The GND pin is the system ground pin.
3.3
This is an input pin which can be connected to V
GND
(HYS = GND) or 10°C (HYS = V
be selected.
3.4
The operating voltage range, as specified in the DC
electrical specification table, is applied on this pin.
© 2008 Microchip Technology Inc.
MCP9509
SOT-23-5
SET
—
—
1
2
3
4
5
). The resistor value can be determined either
4-2.
Equation 4-2
to
PIN DESCRIPTIONS
External Resistor Input (SET)
Ground (GND)
Hysteresis Input (HYS)
Power Pin (V
select
MCP9510
SOT-23-6
—
PIN FUNCTION TABLE
1
2
3
4
6
5
output
or the lookup table shown in
OUTSET Output Control
DD
Symbol
GND
OUT,
OUT
OUT
HYS
SET
V
hysteresis.
)
DD
DD
) of hysteresis can
External Trip Temperature Resistor (R
Ground
Open-drain output
Selectable Output pin,
Hysteresis Input
HYS = GND, hysteresis is 2°C
HYS = V
Power pin
OUTSET = GND, Active-Low, Push-Pull
OUTSET = V
OUTSET = Unconnected, Active-Low, Open-Drain with an internal pull-up
function set by OUTSET pin
Either
DD
, hysteresis is 10°C
DD
DD
2°C
, Active-High, Push-Pull
or
3.5
This output is triggered when temperature exceeds the
programmed trip temperature. This pin requires a
pull-up resistor.
3.6
The output pin can be configured as either a Push-Pull
Active-High, Push-Pull Active-Low, or an Open-drain
Output with an internal pull-up resistor. The three
output options of the MCP9510 are selected by the
OUTSET pin.
3.7
The OUTSET pin is used to select the desired
configuration of the OUT or OUT pin.
TABLE 3-1:
GND
V
unconnected
(i.e. open)
DD
OUTSET Pin
Description
Open-Drain Output (OUT)
(MCP9509)
Selectable Output (OUT, OUT)
(MCP9510)
Output Control (OUTSET)
(MCP9510)
SET
) input
OUTSET SELECTABLE
OUTPUTS
MCP9509/10
Push-Pull, Active-Low
Push-Pull, Active-High
Open-Drain output with an
internal pull-up resistor of
100 kΩ (typical)
OUT / OUT Pin
DS22114A-page 9