MAX6339PUT+ - Maxim Integrated Products - Quad Voltage μP Supervisory Circuit in SOT Package

Quick Detail:

 Quad Voltage Î¼P Supervisory Circuit in SOT Package

Description:

The MAX6339 is a precision quad voltage monitor with microprocessor (µP) supervisory reset timing. The device can monitor up to four system supply voltages without any external components and asserts a single reset if any supply voltage drops below its preset threshold. The device significantly reduces system size and component count while improving reliability compared to separate ICs or discrete components.

A variety of factory-trimmed threshold voltages are available to accommodate different supply voltages and tolerances with minimal external component requirements.

The selection includes internally fixed options for monitoring +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, and -5.0V supplies with -5% and/or -10% tolerances. The device is also available with one or two user-adjustable threshold options if non-standard thresholds are desired (use external resistor-divider network).

The quad monitor provides a single active-low reset output that is asserted when any monitored input is below its associated threshold. The output is open drain with a weak internal pull-up (10µA) to IN2. Reset remains low for a reset timeout period (140ms min) after all voltages are above the selected thresholds. The output is valid as long as either the IN1 or IN2 input voltage remains >1V.

The MAX6339 is available in a small 6-pin SOT23 package and operates over the extended (-40°C to +85°C) temperature range.

Applications:

♦ Monitors Four Power-Supply Voltages

♦ Precision Factory-Set Reset Threshold Options for +5.0V, +3.3V, +3.0, +2.5V, +1.8V, and -5.0V Supplies

♦ User-Adjustable Voltage Monitoring Threshold Options

♦ Low 55µA Supply Current

♦ Open-Drain RESET Output with 10µA Internal Pullup

♦ 140ms (min) Reset Timeout Period

♦ RESET Valid to IN1 = 1V or IN2 = 1V

♦ Immune to Short Monitored Supply Transients

♦ No External Components Required

♦ Guaranteed from -40°C to +85°C

♦ Small 6-Pin SOT23 Package

Specifications:

Competitive Advantage:

Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .

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