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Diodes Incorporated PT7M3808 Microprocessor Supervisory Circuits

Diodes Incorporated PT7M3808 Microprocessor Supervisory Circuits monitor system voltage from 0.4V to 5V. This voltage is adjustable by asserting an open-drain RESET signal when the Manual Reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage, and MR returns above the thresholds. 

The Diodes Incorporated PT7M3808 supervisory circuits feature a power-on reset generator with adjustable delay time, very low quiescent current, and high threshold accuracy. Typical applications include desktop computers, portable/battery-powered products, and Digital Signal Processors (DSP).

Features

  • Power-on reset generator with an adjustable delay time of 1.25ms to 10s
  • 2.8µA (typical) very low quiescent current
  • 0.5% (typical) high threshold accuracy
  • Fixed threshold voltages for standard voltage rails from 0.9V to 5V
  • Adjustable voltage down to 0.4V is available
  • Manual Reset (MR) input
  • Open-drain RESET output
  • -40°C to +125°C temperature range
  • TDFN 2mm x 2mm 6L and SOT23-6L package

Applications

  • DSP or MCU applications capacitor
  • Notebook / desktop computers
  • Hand-held devices with battery-powered applications
  • Portable / battery-powered products
  • Field Programmable Gate Array (FPGA) applications
  • Application Specific Integrated Circuit (ASIC) applications

Block Diagram

Block Diagram - Diodes Incorporated PT7M3808 Microprocessor Supervisory Circuits

Typical Application Circuit

Application Circuit Diagram - Diodes Incorporated PT7M3808 Microprocessor Supervisory Circuits
Publicado: 2018-04-17 | Actualizado: 2022-09-18