TL775

SUPPLY-VOLTAGE SUPERVISOR AND PRECISION VOLTAGE DETECTOR

Features

Power-On Reset Generator

Automatic Reset Generation After Voltage Drop

Low Standby Current . . . 20 µA

Reset Output Defined When VCC Exceeds 1 V

Complementary Reset Output

True and Complementary Reset Outputs Precision

Threshold Voltage 4.55 V ±120 mV

High Output Sink Capability . . . 20 mA

Comparator Hysteresis Prevents Erratic Resets

Dscription

      The TL7757 is a supply-voltage supervisor designed for use in microcomputer and microprocessor systems. The supervisor monitors the supply voltage for undervoltage conditions.

      During power up, when the supply voltage, VCC, attains a value approaching 1 V, the RESET output becomes active (low) to prevent undefined operation.

       If the supply voltage drops below threshold voltage level (VIT–), the RESET output goes to the active (low) level until the supply undervoltage fault condition is eliminated.

       The TL7757C is characterized for operation from 0°C to 70°C. The TL7757I is characterized for operation from –40°C to 85°C.

 
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