MAX6339IUT-T

MAX6339IUT-T Datasheet

MAX6339

Part	Datasheet
MAX6339IUT-T	MAX6339IUT-T (pdf)

Related Parts	Information
MAX6339AUT	MAX6339AUT
MAX6339IUT	MAX6339IUT
MAX6339OUT	MAX6339OUT
MAX6339OUT-T	MAX6339OUT-T

PDF Datasheet Preview
MAX6339 Quad Voltage µP Supervisory Circuit in SOT Package 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 pullup 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. Telecommunications High-End Printers Desktop and Network Computers Data Storage Equipment Networking Equipment Industrial Equipment Set-Top Boxes Monitors Four Power-Supply Voltages Precision Factory-Set Reset Threshold Options for +5.0V, +3.3V, +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 Ordering Information PART TEMP. RANGE PIN-PACKAGE MAX6339_UT-T* -40°C TO +85°C 6 SOT23-6 *Insert the desired letter from the Selector Guide into the blank to complete the part number. There is a 2500 piece minimum order increment requirement on the SOT package and these devices are available in tape-and-reel only. Devices are available in both leaded and lead-free packaging. Specify lead-free by replacing “-T” with “+T” when ordering. Typical Operating Circuit Pin Configuration appears at end of data sheet. SUPPLIES TO BE MONITORED IN1 MAX6339 RESET Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at MAX6339 Quad Voltage µP Supervisory Circuit in SOT Package ABSOLUTE MAXIMUM RATINGS Terminal Voltage with respect to GND Input Voltages IN_ except -5V ............................-0.3V to +6V to +6V Input Voltage -5V Input to +0.3V Continuous RESET Current Continuous Power Dissipation TA = +70°C 6-pin SOT23 derate 8.7mW/°C above +70°C .........695.7mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Junction Temperature Lead Temperature soldering, 10s .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS VIN2 = +1V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN2 = +3.0V to +3.3V, TA = +25°C, unless otherwise noted. Note 1 PARAMETER Supply Voltage Range Notes 2, 3 Input Current Reset Threshold Voltage Adjustable Threshold Voltage Temperature Coefficient Threshold Hysteresis Reset Delay Reset Active Timeout Period SYMBOL VIN2 IIN_ VTH VHYST tRD tRP CONDITIONS VIN_ = input threshold voltage input threshold voltage of 1.8V, 2.5V, 5V VIN2 = input threshold voltage input threshold voltage of 3.0V, 3.3V Note 4 VIN_ = 0 to VIN2 input threshold voltage = +1.23V VIN1 = 1.5V MAX6339 K/L only VIN_ = -5V input threshold voltage = -5V +5V -5% threshold +5V -10% threshold +3.3V -5% threshold VIN_ +3.3V -10% threshold decreasing +3.0V -5% threshold +3.0V -10% threshold +2.5V -10% threshold +1.8V -10% threshold VIN_ increasing -5V +5% threshold -5V +10% threshold VIN decreasing VIN = VTH to VTH - 50mV all inputs except or VIN_ = VTH to VTH + 50mV -5V input only -15 60 20 MAX UNITS 115 µA ppm/°C

PDF Datasheet Preview

MAX6339

Quad Voltage µP Supervisory Circuit in SOT Package

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 pullup 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.

Telecommunications

High-End Printers

Desktop and Network Computers

Data Storage Equipment

Networking Equipment

Industrial Equipment

Set-Top Boxes

Monitors Four Power-Supply Voltages Precision Factory-Set Reset Threshold Options
for +5.0V, +3.3V, +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
Ordering Information

PART

TEMP. RANGE

PIN-PACKAGE

MAX6339_UT-T* -40°C TO +85°C 6 SOT23-6
*Insert the desired letter from the Selector Guide into the blank to complete the part number. There is a 2500 piece minimum order increment requirement on the SOT package and these devices are available in tape-and-reel only.
Devices are available in both leaded and lead-free packaging. Specify lead-free by replacing “-T” with “+T” when ordering.

Typical Operating Circuit

Pin Configuration appears at end of data sheet.

SUPPLIES TO BE

MONITORED

IN1 MAX6339

RESET

Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at

MAX6339

Quad Voltage µP Supervisory Circuit in SOT Package

ABSOLUTE MAXIMUM RATINGS

Terminal Voltage with respect to GND Input Voltages IN_ except -5V ............................-0.3V to +6V to +6V Input Voltage -5V Input to +0.3V Continuous RESET Current Continuous Power Dissipation TA = +70°C
6-pin SOT23 derate 8.7mW/°C above +70°C .........695.7mW

Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Junction Temperature Lead Temperature soldering, 10s .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

VIN2 = +1V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN2 = +3.0V to +3.3V, TA = +25°C, unless otherwise noted. Note 1

PARAMETER Supply Voltage Range Notes 2, 3

Input Current

Reset Threshold Voltage

Adjustable Threshold Voltage Temperature Coefficient Threshold Hysteresis Reset Delay Reset Active Timeout Period

SYMBOL VIN2

IIN_

VTH VHYST
tRD tRP

CONDITIONS

VIN_ = input threshold voltage input threshold voltage of 1.8V, 2.5V, 5V

VIN2 = input threshold voltage input threshold voltage of 3.0V, 3.3V Note 4

VIN_ = 0 to VIN2 input threshold voltage = +1.23V

VIN1 = 1.5V MAX6339 K/L only

VIN_ = -5V input threshold voltage = -5V
+5V -5% threshold
+5V -10% threshold
+3.3V -5% threshold

VIN_
+3.3V -10% threshold
decreasing +3.0V -5% threshold
+3.0V -10% threshold
+2.5V -10% threshold
+1.8V -10% threshold

VIN_ increasing
-5V +5% threshold -5V +10% threshold

VIN decreasing

VIN = VTH to VTH - 50mV all inputs except or VIN_ = VTH to VTH + 50mV -5V input only
-15 60 20

MAX UNITS
115 µA
ppm/°C

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MAX6339IUT-T Datasheet file may be downloaded here without warranties.

Datasheet ID: MAX6339IUT-T 647375