TC1270ATVRCTR Microchip Technology, TC1270ATVRCTR Datasheet - Page 25

• Manufacturer Part Number: TC1270ATVRCTR
• Description: IC,Power Supply Supervisor,TO-253,4PIN,PLASTIC
• Manufacturer: Microchip Technology
• Type: Simple Reset/Power-On Resetr

Specifications of TC1270ATVRCTR

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 3.08V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-143, SOT-143B, TO-253AA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.0
This section presents application-related information
that may be useful for your particular design require-
ments.
5.1
The TC127XA devices are optimized for fast responses
to negative-going changes in V
inordinate amount of electrical noise on V
system using relays) may require a 0.01 µF or 0.1 µF
bypass capacitor to reduce detection sensitivity. This
capacitor should be installed as close to the TC127XA
as possible to keep the capacitor lead length short.
FIGURE 5-1:
with Bypass Capacitor.
5.2
Figure 5-2
conventional voltage monitoring applications.
FIGURE 5-2:
FIGURE 5-3:
 2010 Microchip Technology Inc.
Pwr
Sply
+
–
+
– –
APPLICATION INFORMATION
Supply Monitor Noise Sensitivity
Conventional Voltage Monitoring
and
MR
TC127XA
TC127XA
TC127XA
Figure 5-3
V
V
V
V
V
DD
SS
V
DD
SS
DD
Typical Application Circuit
Battery Voltage Monitor.
Power Good Monitor.
SS
RST
RST
show the TC127XA in
RST
RST
DD
. A system with an
0.1 µF
Power Good
DD
BATLOW
(such as a
5.3
Figure 5-4
the TC1270AN for voltage supervisory function when
the PIC microcontroller will be programmed via the
In-Circuit Serial Programming™ (ICSP™) feature.
Additional information is available in the Microchip
Technical Brief TB087, “Using Voltage Supervisors with
PICmicro
In-Circuit Serial Programming™” (DS91087).
FIGURE 5-4:
for PIC Microcontroller with the ICSP Feature.
TC1270AN
Note:
Note:
TC1270A/70AN/71A
V
V
SS
Using in PIC
ICSP™ Applications
®
DD
RST
shows the typical application circuit for using
Microcontroller Systems which Implement
This operation can only be done using the
device that has an Open-Drain RST pin
(TC1270AN).
It is recommended that the current into the
RST pin is current that is limited by a 1 k
resistor.
0.1 µF
1 k
Typical Application Circuit
®
Microcontroller,
R
V
PU
DD
/V
DS22035C-page 25
Microcontroller
MCLR
Reset input)
(Active-Low)
PP
PIC
V
V
SS
DD
®