MAX16060 Datasheet, PDF (1/18 Pages) Maxim Integrated Products – 1% Accurate, Quad-/Hex-/Octal-Voltage uP Supervisors

19-4099; Rev 0; 4/08
1% Accurate, Quad-/Hex-/Octal-Voltage
µP Supervisors
General Description
The MAX16060/MAX16061/MAX16062 are 1% accurate,
quad-/hex-/octal-voltage µP supervisors in a small thin
QFN package. These devices provide supervisory func-
tions for complex multivoltage systems. The MAX16060
monitors four voltages, the MAX16061 monitors six volt-
ages, and the MAX16062 monitors eight voltages.
These devices offer independent outputs for each mon-
itored voltage along with a reset output that asserts
whenever any of the monitored voltages fall below their
respective thresholds (down to 0.4V) or the manual
reset input is asserted. The reset output remains assert-
ed for the reset timeout after all voltages are above their
respective thresholds and the manual reset input is
deasserted. The minimum reset timeout is internally set
to 140ms or can be adjusted with an external capacitor.
All open-drain outputs have internal 30µA pullups that
eliminate the need for external pullup resistors.
However, each output can be driven with an external
voltage up to 5.5V. Other features offered include a
manual reset input, a tolerance pin for selecting 5% or
10% input thresholds, and a margin enable function for
deasserting the outputs during margin testing.
An additional feature is a watchdog timer that asserts
RESET when the watchdog timeout period (1.6s typ) is
exceeded. The watchdog timer can be disabled by
leaving WDI unconnected.
These devices are offered in 16-, 20-, and 24-pin thin
QFN packages (4mm x 4mm) and are fully specified
from -40°C to +125°C.
Features
o Fixed Thresholds for 3.3V, 2.5V, and 1.8V Systems
o Adjustable Thresholds Monitor Low Voltages
(Down to 0.4V)
o 1% Accurate over Temperature
o Open-Drain Outputs with Internal Pullups Reduce
the Number of External Components
o Fixed 140ms (min) or Capacitor-Adjustable Reset
Timeout
o Manual Reset, Margin Enable, and Tolerance
Select Inputs
o Watchdog Timer
1.6s (typ) Timeout Period
54s Startup Delay After Reset
o Monitors Four (MAX16060), Six (MAX16061), or
Eight (MAX16062) Voltages
o RESET Output Indicates All Voltages Present
o Independent Voltage Monitors
o Guaranteed to Remain Asserted Down to V_CC = 1V
o Small (4mm x 4mm) Thin QFN Package
Applications
Storage Equipment
Multivoltage ASICs
Servers
Automotive
Networking/Telecommun-
ication Equipment
Typical Operating Circuit
Ordering Information
V_IN1
V_IN2
PART
TEMP RANGE PIN-PACKAGE
V_IN3
MAX16060_TE+
-40°C to +125°C 16 TQFN-EP*
MAX16061_TP+
-40°C to +125°C 20 TQFN-EP*
MAX16062_TG+
-40°C to +125°C 24 TQFN-EP*
V_IN4
Note: The “_” is a placeholder for the input voltage threshold.
V_IN5
See Table 1. The MAX16060/MAX16061/MAX16062 are avail-
able in factory-preset thresholds/configuration combinations.
Choose the desired combination and complete part number
from Table 1.
V_IN6
+Denotes a lead-free package.
For tape-and-reel, add a “T” after the “+.” Tape-and-reel are
offered in 2.5k increments.
*EP = Exposed pad.
V_CC
IN1
IN2
IN3
SRT MARGIN
RESET
WDI
MAX16061A
IN4
IN5
IN6
MR _GND
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
TOL
RST
μP
I/O
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or visit Maxim’s website at www.maxim-ic.com.