General Description
The MAX16000–MAX16007 are low-voltage, quad/hex/
octal-voltage μP supervisors in small TQFN and TSSOP
packages. These devices provide supervisory functions
for complex multivoltage systems. The MAX16000/
MAX16001/MAX16002 monitor four voltages, the
MAX16003/MAX16004/MAX16005 monitor six voltages,
and the MAX16006/MAX16007 monitor eight voltages.
The MAX16000/MAX16001/MAX16003/MAX16004/
MAX16006 offer independent outputs for each
monitored voltage. The MAX16001/MAX16002/
MAX16004– MAX16007 offer a reset output that asserts
whenever any of the monitored voltages fall below their
respective thresholds or the manual reset input is asserted.
The reset output remains asserted 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.
The MAX16001/MAX16002/MAX16004–MAX16007 offer
a watchdog timer that asserts RESET or an independent
watchdog output (MAX16005) when the watchdog timeout
period (1.6s typ) is exceeded. The watchdog timer can be
disabled by leaving the input open.
These devices are offered in 12, 16, 20, and 24-pin TQFN
and 16-pin TSSOP packages. These are fully specified
from -40°C to +125°C.
Applications
● Storage Equipment
● Servers
● Networking/Telecommunication Equipment
● Multivoltage ASICs
Benets and Features
● Fixed Thresholds for 5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V,
1.2V, and 0.9V Systems
●Adjustable Thresholds Monitor Voltages Down to 0.4V
● Open-Drain Outputs with Internal Pullups Reduce the
Number of External Components
● Fixed 140ms (min) or Capacitor-Adjustable Reset
Timeout
● Manual Reset, Margin Enable, and Tolerance Select
Inputs
● Watchdog Timer
• 1.6s (typ) Timeout Period
• 54s Startup Delay After Reset (Except MAX16005)
● Independent Watchdog Output (MAX16005)
● RESET Output Indicates All Voltages Present
● Independent Voltage Monitors
● Guaranteed Correct Logic State Down to VCC = 1V
● Small (4mm x 4mm) TQFN Package
● TSSOP (5mm x 4.4mm) Package (MAX16005)
Selector Guide appears at end of data sheet.
Ordering Information continued at end of data sheet.
19-3870; Rev 7; 4/16
Note: The “_” is a placeholder for the input voltage threshold.
See Table 1.
+Denotes a lead(Pb)-free/RoHS-compliant package.
For tape-and-reel, add a “T” after the “+.” Tape-and-reel are
offered in 2.5k increments.
*EP = Exposed pad.
PART TEMP RANGE PIN-PACKAGE
MAX16000_TC+ -40°C to +125°C 12 TQFN-EP*
MAX16005
GND
P
TOL
VCC SRT
MR
IN1 MARGINVIN1
VIN2
VIN3
VIN4
VIN5
VIN6
RESET
WDI
WDO
RST
I/O
NMI
IN2
IN3
IN4
IN5
IN6
MAX16000–MAX16007 Low-Voltage, Quad/Hex/Octal-Voltage
μP Supervisors
Typical Operating Circuit
Ordering Information