MIC826: Voltage Supervisor with Watchdog Timer, Manual Reset, and Dual Outputs in 1.6mm x 1.6mm TDFN

Key Features
  • Precision 1.8V to 5V power supply monitor
  • ±0.5% threshold accuracy at TA = +25°C
  • ±1.5% threshold accuracy from TA = –40°C to +125°C
  • 3.8μA supply current (MIC826S/R/T/W/Y/Z)
  • 4.8μA supply current (MIC826L/M)
  • Manual reset input
  • 140ms (min.) reset timeout period
  • 1.6s (typ.) watchdog timeout period
  • Float watchdog timer input to disable watchdog timer
  • Active-high and active-low push-pull outputs
  • Guaranteed reset output valid to VCC = 1V
  • −40°C to +125°C junction temperature range
  • 6-pin 1.6mm x 1.6mm x 0.5mm Thin DFN package
  • 50% smaller version of MAX823/MAX824/MAX825/
  • 8x lower watchdog input current than competition
Typical Application

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Related Information

Data Sheet
Product Brief
Eval Boards or Kit
Software Package / Kit
Application Notes
Package Outlines
MICRELSim Center
Distributor Stock Check
Free Samples
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Related Literature
  • Microprocessor systems
  • Computers
  • Intelligent instruments

General Description

The MIC826 is a low-current, ultra-small, voltage supervisor with manual reset input, watchdog timer, and active-high and active-low push-pull outputs. The reset outputs are asserted and held when the supply voltage falls below the factory-programmed threshold voltage, when the /MR pin is pulled low, or if the watchdog times out. Reset is asserted for the reset timeout delay after the supply voltage increases above the rising threshold voltage or when manual reset input is asserted high.

The MIC826 features an integrated pull-up resistor on the /MR. An active-low push-pull reset output (/RESET) and an active-high reset output (RESET) provide flexibility when interfacing with various microcontrollers, PMICs, or load switches. The watchdog input can be left unconnected for applications that do not require watchdog monitoring.

The MIC826 consumes a quiescent current of only 3.8μA and is offered in a tiny, space-saving, 6-pin 1.6mm x 1.6mm Thin DFN package. It is rated for the –40°C to +125°C temperature range.

Ordering Information
Part Number VRST Nominal Threshold Voltage (V) Temperature Range Package
MIC826LYMT 4.625 -40°C to +85°C 6-Pin 1.6mm × 1.6mm TDFN
MIC826MYMT 4.375 -40°C to +85°C 6-Pin 1.6mm × 1.6mm TDFN
MIC826TYMT 3.075 -40°C to +85°C 6-Pin 1.6mm × 1.6mm TDFN
MIC826SYMT 2.925 -40°C to +85°C 6-Pin 1.6mm × 1.6mm TDFN
MIC826RYMT 2.625 -40°C to +85°C 6-Pin 1.6mm × 1.6mm TDFN
MIC826ZYMT 2.315 -40°C to +85°C 6-Pin 1.6mm × 1.6mm TDFN
MIC826YYMT 2.188 -40°C to +85°C 6-Pin 1.6mm × 1.6mm TDFN
MIC826WYMT 1.665 -40°C to +85°C 6-Pin 1.6mm × 1.6mm TDFN

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