MAX16063 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – 1% Accurate, Low-Voltage, Quad Window Voltage Detector

19-4100; Rev 0; 4/08
1% Accurate, Low-Voltage,
Quad Window Voltage Detector
General Description
The MAX16063 is a 1% accurate, adjustable, quad win-
dow voltage detector in a small thin QFN package. This
device is designed to provide a higher level of system
reliability by monitoring multiple supply voltages and pro-
viding a fault signal when any of the voltages exceed
their overvoltage thresholds or fall below their undervolt-
age thresholds.
The MAX16063 offers user-adjustable voltage thresh-
olds that allow voltages to be monitored down to 0.4V.
This allows the upper and lower trip thresholds of each
window detector to be set externally with the use of
three external resistors.
Each monitored threshold has an independent open-
drain output for signaling a fault condition. The outputs
can be wire-ORed together to provide a single fault out-
put. The open-drain outputs are internally pulled up
with a 30µA current, but can be externally driven to
other voltage levels for interfacing to other logic levels.
Features include a margin input to disable the outputs
during margin testing or any other time after power-up
operations. Also featured is a reset output that
deasserts after a reset timeout period after all voltages
are within their threshold specifications. The reset time-
out is internally set to 140ms (min), but can be external-
ly adjusted to other reset timeouts using an external
capacitor. In addition, the MAX16063 offers a manual
reset input.
This device is offered in a 4mm x 4mm thin QFN pack-
age and is fully specified from -40°C to +125°C.
Applications
Storage Equipment
Networking/Telecommunications Equipment
Multivoltage ASICs
Servers
Automotive
Features
o Monitor Four Undervoltage/Overvoltage Conditions
o 1% Accuracy Over Temperature
o User-Adjustable Voltage Thresholds
(Down to 0.4V)
o Open-Drain Outputs with Internal Pullups Reduce
the Number of External Components
o Manual Reset Input
o Margin Enable Input
o Fixed or Adjustable RESET Timeout
o Guaranteed to Remain Asserted Down to V_CC = 1V
o Fully Specified from -40°C to +125°C
o Small, 4mm x 4mm Thin QFN Package
Ordering Information
PART
MAX16063TG+
TEMP RANGE
-40°C to +125°C
PIN-PACKAGE
24 TQFN-EP*
+Denotes a lead-free package.
*EP = Exposed pad.
For tape-and-reel, add a “T” after the “+.” Tape-and-reel are
offered in 2.5k increments.
Typical Operating Circuit
3.5V
2.5V
1.8V
SRT
VCC
MARGIN
RESET
VCC
RESET
µC
1.5V
UVIN1
UVOUT1
GND
OVIN1
OVOUT1
UVIN2
OVIN2
MAX16063
UVOUT2
OVOUT2
UVIN3
UVOUT3
OVIN3
OVOUT3
UVIN4
UVOUT4
Pin Configuration appears at end of data sheet.
OVIN4
GND
OVOUT4
MR
________________________________________________________________ Maxim Integrated Products 1
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or visit Maxim’s website at www.maxim-ic.com.