ULTRA-LOW VOLTAGE SC70 µP SUPERVISORS MONITOR SUPPLIES DOWN TO 1.2V WITH NO EXTERNAL COMPONENTS
Note to Editors: The MAX6832–MAX6840 are the first SC70 microprocessor (µP) supervisory circuits designed to monitor 1.2V systems without external components.
SUNNYVALE, CA-November 12, 2001-Maxim Integrated Products introduces the MAX6832-–MAX6840 microprocessor (µP) supervisory circuits. Designed to monitor supply rails of +1.2V to +1.8V in µP and digital systems, these low-power SC70 devices consume only 7µA of quiescent current, making them perfect for portable applications.
Whenever a monitored voltage falls below the reset threshold, the reset output asserts and stays asserted for a minimum reset timeout period after VCC rises above the reset threshold. The MAX6832–MAX6837 are available with six factory-set reset thresholds ranging from 1.050V to 1.665V. The MAX6838/MAX6839/MAX6840 have a user-adjustable threshold that allows voltages to be monitored down to 0.44V. Five reset-timing options are available with typical values of 10µs (voltage-detector version), 1.5ms, 30ms, 210ms, and 1680ms.
These devices are available with three reset output options: an active-low, push-pull output (MAX6832/MAX6835/MAX6838), an active-high, push-pull output (MAX6833/MAX6836/MAX6839), and an active-low, open-drain output (MAX6384/MAX6837/MAX6840). The MAX6835/MAX6836/MAX6837 feature a debounced manual reset input.
These devices are available in a 3-pin (MAX6832/MAX6833/MAX6834) or 4-pin (MAX6835–MAX6840) SC70 package and are fully specified over the extended temperature range (-40°C to +85°C). Prices start at $0.96 (2,500-up or 10,000-up, FOB USA).
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