TC1270ASVRCTR Microchip Technology, TC1270ASVRCTR Datasheet - Page 17

• 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

3.0
Descriptions of the pins are listed in
TABLE 3-1:
 2010 Microchip Technology Inc.
Note 1:
(Push-Pull,
active low)
TC1270A
—
—
5
4
PIN DESCRIPTIONS
—
—
1
2
The MR pin has an internal weak pull-up (18.5 k typical).
(Open-Drain,
Pin Number
active low)
TC1270AN
PINOUT DESCRIPTION
—
—
4
active high)
(Push-Pull,
—
—
TC1271A
5
4
Table
—
—
1
2
3-1.
Sym
RST
RST
RST
V
SS
Type
—
O
O
O
Pin
Buffer
Driver
Power Ground
Open-
Push-
Push-
Drain
Pull
Pull
/
TC1270A/70AN/71A
Reset output (Push Pull), active low
H = V
L = V
Goes active (Low) if one of these conditions
occurs:
1.
2.
3.
Reset output (Open-Drain), active low
Float = V
L = V
Goes active (Low) if one of these conditions
occurs:
1.
2.
3.
Reset output (Push Pull), active high
H = V
L = V
Goes active (High) if one of these conditions
occurs:
1.
2.
3.
(after Reset Delay Timer completes)
(after Reset Delay Timer completes)
(after Reset Delay Timer completes)
If V
voltage threshold.
If the MR pin is forced low.
During power-up.
If V
voltage threshold.
If the MR pin is forced low.
During power-up.
If V
voltage threshold.
If the MR pin is forced low.
During power-up.
DD
DD
DD
DD
DD
DD
DD
DD
< V
< V
> V
> V
< V
DD
falls below the selected Reset
falls below the selected Reset
falls below the selected Reset
TRIP
TRIP
TRIP
TRIP
> V
TRIP
Standard Function
TRIP
, Reset pin is active
, Reset pin is active
, Reset pin is inactive
, Reset pin is inactive
, Reset pin is active
, Reset pin is inactive
DS22035C-page 17