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Technical content
Features
Precision Monitoring of +3V, +3.3V, and +5V Power-Supply Voltages Fully Specified Over Temperature Push-Pull Active-low RESET Output 220ms Min Power-On Reset Pulse Width 10µA Supply Current Guaranteed Reset Valid to VCC = +1V Power Supply Transient Immunity No External Components Manual Reset Input SOT-143 Package 2% Threshold Accuracy
Applications
Computers Controllers Intelligent Instruments Critical µP and µC Power Monitoring Portable / Battery-Powered Equipment Automotive General Description The G632 are microprocessor ( µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and ad- justments when used with +5V, +3.3V, +3.0V- powered circuits. The G632 also provides a debounced manual reset input. These circuits perform a single function: they assert a reset signal whenever the V CC supply voltage declines below a preset threshold, keeping it asserted for at least 220ms after V CC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The G632 have a push-pull and active-low RESET output. The reset comparator is designed to ignore fast transients on V CC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V. Low supply current makes the G632 ideal for use in portable equipment. The G632 are available in a SOT-143 packages.
Ordering Information
THRESHOLD(V) TEMP. RANGE OUTPUT TYPE PACKAGE (Green) G632L293TC1U 632Ax 2.93 -40°C ~ +105°C Push-Pull SOT-143 Note: TC: SOT-143 1: Bonding Code U: Tape & Reel Pin Configuration Typical Application Circuit RESET INPUT GND µP VCC RESET GND G632 VCC RPULL-UP VCC MR VCC SOT-143 4GND 2RESET MR3 G632 ICC may increased at high TA, Therefore, can not connect Resistors to VCC to prevent Icc abnormal behavior at high T A. RESET INPUT GND µP VCC RESET GND G632 VCC RPULL-UP VCC MR VCC SOT-143 4GND 2RESET MR3 G632 ICC may increased at high TA, Therefore, can not connect Resistors to VCC to prevent Icc abnormal behavior at high T A.