TC1270ASVRCTR Microchip Technology, TC1270ASVRCTR Datasheet - Page 22

• Manufacturer Part Number: TC1270ASVRCTR
• Description: IC,Power Supply Supervisor,TO-253,4PIN,PLASTIC
• Manufacturer: Microchip Technology
• Type: Simple Reset/Power-On Resetr

Specifications of TC1270ASVRCTR

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 2.93V
• 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

TC1270A/70AN/71A
4.2.3
As the device powers-down/browns-out, the V
from a voltage above the devices trip point (V
device will trip at a voltage between the maximum trip
point (V
(V
below this voltage, the RST/RST pin will be forced to
the active state.
or RST pins.
TABLE 4-3:
FIGURE 4-8:
DS22035C-page 22
Note 1:
TRIP(MIN)
Note 1:
TC1270A
TC1271A
Device
TRIP(MAX)
). Once the device voltage (V
The RST/RST pin will be driven inactive after the Reset Delay Timer (t
POWER-DOWN/BROWN-OUT
V
RST
(with V
The TC1270AN requires an external pull-up resistor.
DD
Table 4-3
RESET PIN STATES
(1)
) and the minimum trip point
DD
RST
V
Falling)
DD
V
shows the state of the RST
TRIP
t
State of RST Pin when:
RD
Operation as determined by the V
< V
—
L
TRIP
1V
< 1V is outside the
device specifications
V
DD
TRIP
DD
> V
DD
) goes
—
). The
H
TRIP
falls
(with V
(1)
DD
V
Figure 4-8
determined by the V
from the normal operating point, the device “enters”
Reset by crossing the V
V
rises, the device “exits” Reset by crossing the V
voltage (below, or at, V
has been detected, the Reset Delay Timer (t
When the t
inactive.
Rising)
DD
V
TRIP(MAX)
TRIP
State of RST Pin when:
TRIP
< V
—
H
.
TRIP
RST
shows the waveform of the RST pin as
and V
t
RST
time completes, the Reset pin is driven
V
TRIP(MIN)
RST
DD
t
RD
DD
> V
) times out.
voltage. As the V
—
TRIP(MAX)
L
 2010 Microchip Technology Inc.
TRIP
). Then, when V
(1)
TRIP
). After the “exit” state
t
voltage (between
RST
Output Driver
Push-Pull
Push-Pull
DD
voltage falls
RST
DD
) starts.
voltage
TRIP