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MAX16055_AUB+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX16055_AUB+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 9 page General Description The MAX16055 precision hex voltage microprocessor (µP) supervisory circuit monitors up to six system-sup- ply voltages and asserts a single reset when any one supply voltage drops below its preset threshold. The device significantly reduces system size and compo- nent count while improving reliability compared to multi- ple ICs or discrete components. A variety of factory-trimmed threshold voltages are avail- able to accommodate different supply voltages and tol- erance with minimal external components. The MAX16055 includes internally fixed threshold options for monitoring 3.3V, 3.0V, 2.5V, 1.8V, 1.5V, 1.2V, 1.1V, 1.0V, and 0.9V supplies with -5% or -10% tolerance. The MAX16055 is also available with one to five adjustable threshold inputs to monitor voltages down to 0.5V. A single active-low, open-drain output asserts when any monitored input falls below its associated thresh- old. The reset output features a weak internal pullup (typically 70µA) to supply input IN1. The reset output remains low for the reset timeout period (140ms, min) after all voltages rise above the selected thresholds. The reset output remains valid as long as either IN1 or IN2 input voltage is above 1V. The MAX16055 is avail- able in a small 10-pin µMAX® (3mm x 3mm) package. The MAX16055 operates over the -40°C to +125°C automotive temperature range. Applications Features o Precision Factory-Set Reset Threshold Options 3.3V, 3.0V, 2.5V, 1.8V, 1.5V, 1.2V, 1.1V, 1.0V, and 0.9V o Adjustable Voltage Threshold Monitors Down to 0.5V with 1.5% Accuracy o Open-Drain RESET Output with 70µA Internal Pullup o Fixed 140ms (min) Reset Timeout Period o Manual Reset Input o Reset Valid for IN1 ≥ 1V or IN2 ≥ 1V o Tolerance Select (5%/10%) Input o Immune to Short Supply Transients Ultra-Small, Hex Voltage, Microprocessor Supervisor ________________________________________________________________ Maxim Integrated Products 1 1 + 2 3 4 5 10 9 8 7 6 GND RESET MR TOL IN4 IN3 IN2 IN1 MAX16055 µMAX TOP VIEW IN6 IN5 Pin Configuration Ordering Information MAX16055 µP RESET VCC 10k Ω IN2 MR GND TOL MONITORED SUPPLIES IN1 0.1 µF IN3 IN4 IN5 IN6 Typical Operating Circuit 19-4411; Rev 0; 1/09 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. + Denotes a lead(Pb)-free/RoHS-compliant package. * Insert the desired threshold option letter from the Selector Guide into the blank to complete the part number. Contact factory for availability. PART TEMP RANGE PIN-PACKAGE MAX16055_AUB+* -40°C to +125°C 10 µMAX Telecommunications High-End Printers Desktop and Notebook Computers Data Storage Equipment Networking Equipment Industrial Equipment Set-Top Boxes Servers/Workstations µMAX is a registered trademark of Maxim Integrated Products, Inc. |
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