TC1270A/70AN/71A
Voltage Supervisor with Manual Reset Input
Package Types
Features:
SOT-143
• Precision voltage monitor
SOT-143
- 2.63V, 2.93V, 3.08V, 4.38V and 4.63V trip
points (Typical)
VDD
VDD VSS
VSS
1
4
1
4
• Manual Reset input
MR
2
3
2
MR RST
• Reset Time-out Delay:
3
RST
- Standard: 280 ms (Typical)
- Optional: 2.19 ms, and 35 ms (Typical)
• Power Consumption ≤ 15 µA max
• No glitches on outputs during power-up
• Active Low Output Options:
- Push-Pull Output and Open-Drain Output
• Active High Output Option:
- Push-Pull Output
SOT-23-5
SOT-23-5
VSS
NC
NC
VDD
MR
1
2
3
5
1
2
3
5
VSS
VDD
MR
RST
4
4
RST
Functional Block Diagram
• Replacement for (Specification compatible with):
- TC1270, TC1271
Voltage
Reset
- TCM811, TCM812
VDD
RST
(TC1271A)
RST
(TC1270A)
RST
(TC1270AN)
Detector
PP
PP
OD
Generator
& Delay
• Fully static design
Circuitry
• Low voltage operation (1.0V)
• ESD protection:
Timer
(2.19 ms,
35 ms,
- ≥ 4 kV Human Body Model (HBM)
- ≥ 400V Machine Model (MM)
• Extended (E) Temperature range:
-40°C to +125°C
280 ms)
18.5 kΩ
MR
Glitch Filter
• Package Options:
- 4-lead SOT-143
- 5-lead SOT-23
- Pb-free Device
Device Features
Output
Device
Active
Packages Comment
Type
Level
TC1270A
Push-Pull
Low
SOT-143(2), Replaces TC1270 and
SOT-23-5 TCM811
2.19, 4.63, 4.38, 1.0V
-40°C
to
5.5V +125°C
TC1270AN Open-Drain
TC1271A Push-Pull
Low
35,
3.08, 2.93,
to
SOT-23-5 New Option
SOT-143(2), Replaces TC1271 and
280(1)
2.63(4)
High
SOT-23-5 TCM812
Note 1: The 280 ms Reset Delay time-out is compatible with the TC1270, TC1271, TCM811, and TCM812
devices.
2: The SOT-143 package is compatible with the TC1270, TC1271, TCM811, and TCM812 devices.
3: Custom Reset Trip Points and Reset Delays available, contact factory.
4: The TC1270/1 and TCM811/12 1.75V Trip Point Option is not supported.
© 2007 Microchip Technology Inc.
DS22035B-page 1