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1 / 12 page © Semiconductor Components Industries, LLC, 1999 November, 1999 – Rev. 2 1 Publication Order Number: MC33460/D MC33460, MC33461 Under Voltage Detector Series The MC33460 and MC33461 series are ultra–low power CMOS under–voltage detectors with very tight threshold accuracy specifically designed for accurate monitoring of power supplies. The devices are optimized for use in battery powered systems where low quiescent current and small packaging are required. The device generates an active–low signal whenever the input voltage falls below the factory set ±2% threshold. Hysteresis is provided to ensure reliable output switching. The MC33460/1 series features a highly accurate voltage reference, a comparator with a precision voltage threshold, and built–in hysteresis to prevent erratic operation and a choice of output configurations between Open Drain (MC33460) and complementary push–pull (MC33461). The products are offered in 9 standard voltage thresholds ranging from 0.9V to 4.5V. Other threshold voltages from 1.0 to 5.0V are available in 100mV steps. The devices can operate to a very low input voltage level and are housed in the ultra–miniature SC–82AB package. Features • Available in Open Drain or Push–Pull Output • Output State Guaranteed to Vin = 0.8 V • Tight Detector Voltage Accuracy (±2.0%) • Extended Temperature Operation (–40°C to 85°C) • Ultra Low Quiescent Current (0.8 µA at Vin = 1.5 V typical) • Wide Range of Operating Voltage (0.7 V to 10 V) Applications • Low Battery Detector • Power–Fail Indicator • Microprocessor Reset Generator • Window Comparator • Battery Backup Circuit Representative Block Diagrams MC33460 Nch Open Drain Configuration MC33461 CMOS Configuration Vref Vin OUT GND Vref Vin OUT GND SC–82AB SQ SUFFIX CASE 419C http://onsemi.com See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. ORDERING INFORMATION PIN CONNECTIONS 4 1 14 3 2 (Top View) Vin OUT GND N/C |
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