Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

TC1278

EOL

Status: End of Life

Features:

  • Precision VCC Monitor for 5.0V Systems
  • 100 msec Minimum RESET, RESET Output Duration
  • Output Valid to VCC = 1.2V VCC Transient Immunity
  • No External Components
View More
Overview
Documents
Development Environment
RoHS Information
Buy Now

Device Overview

Summary

The TC1278 and TC1279 are cost-effective system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 5 µsec of VCC falling through the reset voltage threshold. Reset is maintained active for a minimum of 250 msec after VCC rises above the reset threshold. The TC1278 has an active-high RESET output while the TC1279 has an active-low RESET output, and both devices have an open drain output stage. The output is valid down to VCC = 1.2V. Both devices are available in a 3-pin SOT-23 package.

Additional Features
- Precision VCC Monitor for 5.0V Systems
- 100 msec Minimum RESET, RESET Output Duration
- Output Valid to VCC = 1.2V
VCC Transient Immunity
- No External Components
Parametrics
Name
Value
Typical Reset Pulse Width (ms)
350
Reset Type
Active High
Typical Supply Current (uA)
900
Vcc Range Min (V)
1.2
Vcc Range Max (V)
5.5
Output
Open Drain w/6k Pull-up
Temp Range Min. (°C)
-40
Temp Range Max. (°C)
+85
Nominal Reset Voltage (V)
4.50, 4.25, 4.00

Documents

Jump to:

Data Sheet

03/06/2007
441KB

Product Line Card

Product Line Documents

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
Voltage Supervisor Evaluation Board
Voltage Supervisor Evaluation Board ( VSUPEV )

The Voltage Supervisor SOT23 Evaluation Board allows the system designer to quickly evaluate the operation of Microchip’s Voltage Supervisors and Voltage Detectors in the SOT-23-3 package. The board has been made generic so that other SOT-23-3 devices (such as LDOs and Voltage References) may also be evaluated using this board. This kit comes with four blank PCBs to allow the designer to...

Learn More
Add To Cart

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
TC1278-10ENBTR
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
TC1278-15ENBTR
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
TC1278-5ENBTR
0.008300
0.039000
3
SOT-23
1.3mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy