19-2379; Rev 0; 4/02
Low-Voltage, High-Accuracy, Quad Voltage
Monitors in 碌MAX 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 10碌A 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 35碌A (typ) of supply cur-
rent. The MAX6714 consumes only 60碌A (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 碌MAX
package and operate over the extended (-40掳C to
+85掳C) temperature range.
Features
o
Monitor Four Power-Supply Voltages
o
Precision Factory-Set Threshold Options for 5.0V,
3.3V, 3.0V, 2.5V, and 1.8V (Nominal) Supplies
o
Adjustable Voltage Threshold Monitors Down to
0.62V
o
High-Accuracy (卤2.0%) Adjustable Threshold
Inputs
o
Low Supply Current
MAX6709: 35碌A
MAX6714: 60碌A
o
Four Independent, Active-Low, Open-Drain
Outputs with 10碌A Internal Pullup to V
CC
o
140ms (min) Reset Timeout Period
(MAX6714 only)
o
2.0V to 5.5V Supply Voltage Range
o
Immune to Supply Transients
o
Fully Specified from -40掳C to +85掳C
o
Small 10-Pin 碌MAX Package
MAX6709/MAX6714
Ordering Information
PART
MAX6709_UB*
TEMP RANGE
-40掳C to +85掳C
PIN-PACKAGE
10 碌MAX
MAX6714_UB*
-40掳C to +85掳C
10 碌MAX
*Insert
the desired letter from the Selector Guide into the blank
to complete the part number.
Applications
Telecommunications
Servers
High-End Printers
Desktop and Notebook Computers
Data Storage Equipment
Networking Equipment
Multivoltage Systems
TOP VIEW
IN1
1
IN2
IN3
IN4
GND
2
3
4
5
10
V
CC
9
PWRGD1
PWRGD2
PWRGD3
PWRGD4
Pin Configurations
MAX6709
8
7
6
Typical Operating Circuits appear at end of data sheet.
Selector Guides appear at end of data sheet.
碌MAX
Pin Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
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