MCP9502PT-125E/OT Microchip Technology, MCP9502PT-125E/OT Datasheet - Page 10

• Manufacturer Part Number: MCP9502PT-125E/OT
• Description: Factory Programmed Temperature Switch, Active High, Push-pull Output 5 SOT-23 T
• Manufacturer: Microchip Technology

Specifications of MCP9502PT-125E/OT

• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Sensing Accuracy Range: ± 2°C
• Temperature Sensing Range: -40°C To +125°C
• Supply Current: 25µA
• Supply Voltage Range: 2.7V To 5.5V
• Sensor Case Style: SOT-23
• No. Of Pins: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP9501/2/3/4
4.1.2
The MCP9501/2/3/4 family does not require any
additional components. However, it is recommended
that a decoupling capacitor of 0.1 µF to 1 µF be used
between the V
ceramic capacitor is recommended. It is necessary for
the capacitor to be located as close as possible to the
power pins in order to provide effective noise
protection.
FIGURE 4-5:
Single Resistor.
For applications where a switching regulator is used to
power the sensor, it is recommended to add a 200Ω
resistor in series to V
It is also recommended to add the series resistor in
applications where a linear regulator is used to
step-down a switching regulator voltage to power the
sensor, as shown in
linearly regulated 3.3V from a 5V switching regulator is
used to power the sensor, add a 200Ω series resistor.
DS22268A-page 10
Switching
Regulator
Switching
Regulator
POWER SUPPLY REJECTION
DD
Regulator
Linear
and GND pins. A high-frequency
DD
200Ω
Power-supply Filter using a
Figure
to filter out the switcher noise.
bypass
0.1 µF
bypass
0.1 µF
200Ω
4-5. For example, if a
MCP9501/2/3/4
MCP9501/2/3/4
V
DD
V
DD
The MCP9501/2/3/4 family of sensors is designed to
prevent false output trigger due to high frequency
power supply or system noise.
device performance with a high frequency signal added
on V
added on V
recommended to add a bypass capacitor of 0.1 µF to
1 µF.
FIGURE 4-6:
)
( V
e
g
a
l t
o
V
t
u
t p
u
O
DD
6
5
4
3
2
1
0
10
. The output is not triggered due to the signal
MCP9501/2/3/4 T
V
0
1
No False Trigger
V
DD
DD
= 5V + 400mV
= 5V + 400mV
100
DD
0
0
1
. With some applications, it is
SET
AC
SQR
1000
= 25\ C Power Supply Rejection
Frequency (Hz)
Power Supply Rejection.
k
1
Frequency (Hz)
© 2011 Microchip Technology Inc.
°
10000
k
0
1
Figure 4-6
100000
k
0
0
1
T
T
SET
A
= 23\C
1000000
= 25\ C
shows the
°
M
1
°
10000000
M
0
1