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
MAX16063
1% Accurate, Low-Voltage,
Quad Window Voltage Detector
________________________________________________________________
Maxim Integrated Products
1
PART TEMP RANGE PIN-PACKAGE
MAX16063TG+ -40°C to +125°C 24 TQFN-EP*
Ordering Information
19-4100; Rev 0; 4/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
GND
UVIN1 UVOUT1
OVIN1
UVIN2
OVIN2
UVIN3
OVIN3
2.5V
3.5V
1.8V
1.5V
UVIN4
OVIN4
UVOUT2
UVOUT3
UVOUT4
OVOUT1
OVOUT2
OVOUT3
OVOUT4
µC
RESET
RESET
V
CC
V
CC
MR
MAX16063
MARGIN
SRT
GND
Typical Operating Circuit
Pin Configuration appears at end of data sheet.
+
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.
MAX16063
1% Accurate, Low-Voltage,
Quad Window Voltage Detector
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= 2.0V to 5.5V, T
A
= -40°C to +125°C, unless otherwise specified. Typical values are at V
CC
= 3.3V, T
A
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
CC
, OVOUT_, UVOUT_, RESET,
UVIN_, OVIN_ to GND .........................................-0.3V to +6V
MARGIN, MR, SRT to GND ........................-0.3V to (V
CC
+ 0.3V)
Input/Output Current
(RESET, MARGIN, SRT, MR, UVOUT_, OVOUT_) .......±20mA
Continuous Power Dissipation (T
A
= +70°C)
24-Pin Thin QFN (derate 16.9mW/°C above +70°C) ....1666mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range V
CC
(Note 2) 1.0 5.5 V
V
CC
= 3.3V, outputs deasserted 45 65
Supply Current (Note 3) I
CC
V
CC
= 5V, outputs deasserted 50 70
µA
UVLO (Undervoltage Lockout) V
UVLO
V
CC
rising 1.62 1.80 1.98 V
UVLO Hysteresis V
UVLO_HYS
65 mV
UVIN_/OVIN_
Adjustable Threshold (UVIN_
Falling/OVIN_ Rising)
V
TH
0.390 0.394 0.398 V
UVIN_/OVIN_ Hysteresis V
TH
_
HYS
UVIN_ falling/OVIN_ rising (percentage of the
threshold)
0.5 % V
TH
UVIN_/OVIN_ Input Current I
IB
-100 +100 nA
RESET
SRT = V
CC
140 200 280
C
SRT
= 1500pF (Note 4) 2.43 3.09 3.92
C
SRT
= 100pF 0.206
Reset Timeout t
RP
C
SRT
= open 0.05
ms
SRT Ramp Current I
SRT
V
SRT
= 0V 460 600 740 nA
SRT Threshold 1.173 1.235 1.293 V
SRT Hysteresis 100 mV
UVIN_/OVIN_ to Reset Delay t
RD
UVIN_ falling/OVIN_ rising 20 µs
MAX16063
1% Accurate, Low-Voltage,
Quad Window Voltage Detector
_______________________________________________________________________________________ 3
Note 1: Devices are tested at T
A
= +25°C and guaranteed by design for T
A
= T
MIN
to T
MAX
.
Note 2: The outputs are guaranteed to remain asserted down to V
CC
= 1V.
Note 3: Measured with MR and MARGIN unconnected.
Note 4: The minimum and maximum specifications for this parameter are guaranteed by using the worse case of the SRT current
and SRT threshold specifications.
Note 5: Amount of time required for logic to lock/unlock outputs from margin testing.
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 2.0V to 5.5V, T
A
= -40°C to +125°C, unless otherwise specified. Typical values are at V
CC
= 3.3V, T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
C C
= 3.3V , I
S IN K
= 10m A, RESET asser ted 0.3
V
CC
= 2.5V, I
SINK
= 6mA, RESET asser ted 0.3RESET Output-Voltage Low V
OL
V
CC
= 1.2V, I
SINK
= 50µA, RESET asser ted 0.3
V
RESET Output-Voltage High V
OH
V
CC
2.0V, I
SOURCE
= 6µA, RESET
deasserted
0.8 x
V
CC
V
MR Input-Voltage Low V
IL
0.3 x
V
CC
V
MR Input-Voltage High V
IH
0.7 x
V
CC
V
MR Minimum Pulse Width s
MR Glitch Rejection 100 ns
MR to RESET Delay 200 ns
MR Pullup Resistance 12 20 28 k
OUTPUTS (UVOUT_/OVOUT_)
V
CC
= 3.3V, I
SINK
= 2mA 0.3
UVOUT_, OVOUT_ Output-
Voltage Low
V
OL
V
CC
= 2.5V, I
SINK
= 1.2mA 0.3
V
UVOUT_, OVOUT_ Output-
Voltage High
V
OH
V
CC
2.0V, I
SOURCE
= 6µA
0.8 x
V
CC
V
U V IN _/OV IN _ to UV O UT_/
O V O UT_ P r op ag ati on D el ay
t
D
(V
TH
- 100mV) to (V
TH
+ 100mV) 20 µs
DIGITAL LOGIC
MARGIN Input-Voltage Low V
IL
0.3 x
V
CC
V
MARGIN Input-Voltage High V
IH
0.7 x
V
CC
V
MARGIN Pullup Resistance Pulled up to V
CC
12 20 28 k
MARGIN Delay Time t
MD
Rising or falling (Note 5) 50 µs

MAX16063TG+

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Supervisory Circuits Quad Window Voltage Detector
Lifecycle:
New from this manufacturer.
Delivery:
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