Product details

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 10.8 Features Manual reset capable, Wide input voltage, Complimentary output Reset threshold accuracy (%) 1.9 Output driver type/reset output Active-high, Active-low, Open-drain Time delay (ms) Programmable Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) 0 to 70
Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 10.8 Features Manual reset capable, Wide input voltage, Complimentary output Reset threshold accuracy (%) 1.9 Output driver type/reset output Active-high, Active-low, Open-drain Time delay (ms) Programmable Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) 0 to 70
PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9
  • Power-On Reset Generator
  • Automatic Reset Generation After Voltage Drop
  • Wide Supply-Voltage Range
  • Precision Voltage Sensor
  • Temperature-Compensated Voltage Reference
  • Externally Adjustable Pulse Duration
  • Power-On Reset Generator
  • Automatic Reset Generation After Voltage Drop
  • Wide Supply-Voltage Range
  • Precision Voltage Sensor
  • Temperature-Compensated Voltage Reference
  • Externally Adjustable Pulse Duration

The TL77xxA family of integrated-circuit supply-voltage supervisors is designed specifically for use as reset controllers in microcomputer and microprocessor systems. The supply-voltage supervisor monitors the supply for undervoltage conditions at the SENSE input. During power up, the RESET output becomes active (low) when VCC attains a value approaching 3.6 V. At this point (assuming that SENSE is above VIT+), the delay timer function activates a time delay, after which outputs RESET and RESET go inactive (high and low, respectively). When an undervoltage condition occurs during normal operation, RESET and RESET go active.

The TL77xxA family of integrated-circuit supply-voltage supervisors is designed specifically for use as reset controllers in microcomputer and microprocessor systems. The supply-voltage supervisor monitors the supply for undervoltage conditions at the SENSE input. During power up, the RESET output becomes active (low) when VCC attains a value approaching 3.6 V. At this point (assuming that SENSE is above VIT+), the delay timer function activates a time delay, after which outputs RESET and RESET go inactive (high and low, respectively). When an undervoltage condition occurs during normal operation, RESET and RESET go active.

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Technical documentation

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* Data sheet TL77xxA Supply-Voltage Supervisors datasheet (Rev. K) PDF | HTML 29 Sep 2016
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Application note Supply Voltage Supervisor TL77xx Series 01 Jan 1997

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