MAX6709_05 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – Low-Voltage, High-Accuracy, Quad Voltage Monitors in μMAX Package

19-2379; Rev 1; 12/05
Low-Voltage, High-Accuracy, Quad Voltage
Monitors in µMAX Package
General Description
The MAX6709/MAX6714 quad voltage monitors provide
accurate monitoring of up to four supplies without any
external components. A variety of factory-trimmed thresh-
old voltages and supply tolerances are available to opti-
mize the MAX6709/MAX6714 for specific applications.
The selection includes input options for monitoring 5.0V,
3.3V, 3.0V, 2.5V, and 1.8V voltages. Additional high-input-
impedance comparator options can be used as
adjustable voltage monitors, general-purpose compara-
tors, or digital-level translators.
The MAX6709 provides four independent open-drain
outputs with 10µA internal pullup to V_CC. The MAX6714
provides an active-low, open-drain RESET output with
integrated reset timing and three power-fail comparator
outputs.
Each of the monitored voltages is available with trip
thresholds to support power-supply tolerances of either
5% or 10% below the nominal voltage. An internal
bandgap reference ensures accurate trip thresholds
across the operating temperature range.
The MAX6709 consumes only 35µA (typ) of supply cur-
rent. The MAX6714 consumes only 60µA (typ) of supply
current. The MAX6709/MAX6714 operate with supply
voltages of 2.0V to 5.5V. An internal undervoltage lock-
out circuit forces all four digital outputs low when V_CC
drops below the minimum operating voltage. The four
digital outputs have weak internal pullups to V_CC,
accommodating wire-ORed connections. Each input
threshold voltage has an independent output. The
MAX6709/MAX6714 are available in a 10-pin µMAX
package and operate over the extended (-40°C to
+85°C) temperature range.
Applications
Telecommunications
Servers
High-End Printers
Desktop and Notebook Computers
Data Storage Equipment
Networking Equipment
Multivoltage Systems
Typical Operating Circuits appear at end of data sheet.
Selector Guides appear at end of data sheet.
Features
♦ Monitor Four Power-Supply Voltages
♦ Precision Factory-Set Threshold Options for 5.0V,
3.3V, 3.0V, 2.5V, and 1.8V (Nominal) Supplies
♦ Adjustable Voltage Threshold Monitors Down to
0.62V
♦ High-Accuracy (±2.0%) Adjustable Threshold
Inputs
♦ Low Supply Current
MAX6709: 35µA
MAX6714: 60µA
♦ Four Independent, Active-Low, Open-Drain
Outputs with 10µA Internal Pullup to V_CC
♦ 140ms (min) Reset Timeout Period
(MAX6714 only)
♦ 2.0V to 5.5V Supply Voltage Range
♦ Immune to Supply Transients
♦ Fully Specified from -40°C to +85°C
♦ Small 10-Pin µMAX Package
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX6709_UB*
-40°C to +85°C 10 µMAX
MAX6714_UB*
-40°C to +85°C 10 µMAX
*Insert the desired letter from the Selector Guide into the blank
to complete the part number.
Devices are available in both leaded and lead-free packaging.
Specify lead free by adding the + symbol at the end of the part
number when ordering.
Pin Configurations
TOP VIEW
IN1 1
IN2 2
IN3 3
IN4 4
GND 5
MAX6709
µMAX
10 V_CC
9 PWRGD1
8 PWRGD2
7 PWRGD3
6 PWRGD4
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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