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MAX6422US29-T Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX6422US29-T Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 10 page General Description The MAX6340/MAX6421–MAX6426 low-power micro- processor supervisor circuits monitor system voltages from 1.6V to 5V. These devices perform a single function: they assert a reset signal whenever the VCC supply volt- age falls below its reset threshold. The reset output remains asserted for the reset timeout period after VCC rises above the reset threshold. The reset timeout is exter- nally set by a capacitor to provide more flexibility. The MAX6421/MAX6424 have an active-low, push- pull reset output. The MAX6422 has an active-high, push-pull reset output and the MAX6340/MAX6423/ MAX6425/MAX6426 have an active-low, open-drain reset output. The MAX6421/MAX6422/MAX6423 are offered in 4-pin SC70 or SOT143 packages. The MAX6340/MAX6424/MAX6425/MAX6426 are available in 5-pin SOT23-5 packages. Applications Portable Equipment Battery-Powered Computers/Controllers Automotive Medical Equipment Intelligent Instruments Embedded Controllers Critical µP Monitoring Set-Top Boxes Computers Features o Monitor System Voltages from 1.6V to 5V o Capacitor-Adjustable Reset Timeout Period o Low Quiescent Current (1.6µA typ) o Three RESET Output Options Push-Pull RESET Push-Pull RESET Open-Drain RESET o Guaranteed Reset Valid to VCC = 1V o Immune to Short VCC Transients o Small 4-Pin SC70, 4-Pin SOT143, and 5-Pin SOT23 Packages o MAX6340 Pin Compatible with LP3470 o MAX6424/MAX6425 Pin Compatible with NCP300–NCP303, MC33464/MC33465, S807/S808/S809, and RN5VD o MAX6426 Pin Compatible with PST92XX Low-Power, SC70/SOT µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay ________________________________________________________________ Maxim Integrated Products 1 Ordering Information GND ( ) ARE FOR THE MAX6422 VCC 14 SRT MAX6421X MAX6422X MAX6423X SC70 TOP VIEW 2 3 RESET (RESET) Pin Configurations 19-2440; Rev 2; 10/02 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Typical Operating Circuit appears at end of data sheet. Selector Guide appears at end of data sheet. PART TEMP RANGE PIN-PACKAGE MAX6340UK_ _-T -40°C to +125°C 5 SOT23-5 MAX6421XS_ _-T -40°C to +125°C 4 SC70-4 MAX6421US_ _-T -40°C to +125°C 4 SOT143-4 MAX6422XS_ _-T -40°C to +125°C 4 SC70-4 MAX6422US_ _-T -40°C to +125°C 4 SOT143-4 MAX6423XS_ _-T -40°C to +125°C 4 SC70-4 MAX6423US_ _-T -40°C to +125°C 4 SOT143-4 MAX6424UK_ _-T -40°C to +125°C 5 SOT23-5 MAX6425UK_ _-T -40°C to +125°C 5 SOT23-5 MAX6426UK_ _-T -40°C to +125°C 5 SOT23-5 Note: The MAX6340/MAX6421–MAX6426 are available with fac- tory-trimmed reset thresholds from 1.575V to 5.0V in approxi- mately 0.1V increments. Insert the desired nominal reset threshold suffix (from Table 1) into the blanks. There are 50 stan- dard versions with a required order increment of 2500 pieces. Sample stock is generally held on standard versions only (see Standard Versions Table). Required order increment is 10,000 pieces for nonstandard versions. Contact factory for availability. All devices are available in tape-and-reel only. Pin Configurations continued at end of data sheet. |
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