19-3870; Rev 3; 12/08
Low-Voltage, Quad-/Hex-/Octal-Voltage
µP Supervisors
General Description
The MAX16000–MAX16007 are low-voltage, quad-/hex-/
octal-voltage µP supervisors in small thin QFN 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 moni-
tored 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 adjust-
ed 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 indepen-
dent watchdog output (MAX16005) when the watchdog
timeout period (1.6s typ) is exceeded. The watchdog
timer can be disabled by floating the input.
These devices are offered in 12-, 16-, 20-, and 24-lead
thin QFN and 16-lead TSSOP packages. These are fully
specified from -40°C to +125°C.
Features
o
Fixed Thresholds for 5V, 3.3V, 3V, 2.5V, 1.8V,
1.5V, 1.2V, and 0.9V Systems
o
Adjustable Thresholds Monitor Voltages Down to
0.4V
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 (Except MAX16005)
o
Independent Watchdog Output (MAX16005)
o
RESET
Output Indicates All Voltages Present
o
Independent Voltage Monitors
o
Guaranteed Correct Logic State Down to V
CC
= 1V
o
Small (4mm x 4mm) Thin QFN Package
o
TSSOP (5mm x 4.4mm) Package (MAX16005)
MAX16000–MAX16007
Ordering Information
PART
MAX16000_TC+
TEMP RANGE
-40°C to +125°C
PIN-PACKAGE
12 TQFN-EP*
Note: The “_” is a placeholder for the input voltage threshold.
See Table 1.
+Denotes
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.
Ordering Information continued at end of data sheet.
Typical Operating Circuit
Applications
Storage Equipment
Servers
Networking/Telecommunication Equipment
Multivoltage ASICs
V
CC
V
IN1
V
IN2
V
IN3
V
IN4
V
IN5
V
IN6
IN1
IN2
IN3
IN4
IN5
IN6
MR
MAX16005
RESET
WDI
WDO
RST
I/O
NMI
µP
SRT
MARGIN
Selector Guide appears at end of data sheet.
GND
TOL
________________________________________________________________
Maxim Integrated Products
1
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.
Low-Voltage, Quad-/Hex-/Octal-Voltage
µP Supervisors
MAX16000–MAX16007
ABSOLUTE MAXIMUM RATINGS
V
CC
, OUT_, IN_,
RESET, WDO
to GND....................-0.3V to +6V
TOL,
MARGIN, MR,
SRT, WDI, to GND ..........-0.3V to V
CC
+ 0.3
Input/Output Current (RESET,
MARGIN,
SRT,
MR,
TOL, OUT_,
WDO,
WDI) ..............................±20mA
Continuous Power Dissipation (T
A
= +70°C)
12-Pin TQFN (derate 16.9mW/°C above +70°C) ........1349mW
16-Pin TQFN (derate 16.9mW/°C above +70°C) ........1349mW
20-Pin TQFN (derate 16.9mW/°C above +70°C) ........1355mW
24-Pin TQFN (derate 16.9mW/°C above +70°C) ........1666mW
16-Pin TSSOP (derate 9.4mW/°C above +70°C) ..........754mW
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
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.
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)
PARAMETER
Operating Voltage Range
Supply Current
UVLO (Undervoltage Lockout)
IN_ (See Table 1)
5V threshold, TOL = GND
5V threshold, TOL = V
CC
3.3V threshold, TOL = GND
3.3V threshold, TOL = V
CC
3.0V threshold, TOL = GND
3.0V threshold, TOL = V
CC
2.5V threshold, TOL = GND
Threshold Voltages (IN_ Falling)
V
TH
2.5V threshold, TOL = V
CC
1.8V threshold, TOL = GND
1.8V threshold, TOL = V
CC
1.5V threshold, TOL = GND
1.5V threshold, TOL = V
CC
1.2V threshold, TOL = GND
1.2V threshold, TOL = V
CC
0.9V threshold, TOL = GND
0.9V threshold, TOL = V
CC
4.50
4.25
2.970
2.805
2.70
2.55
2.250
2.125
1.62
1.53
1.350
1.275
1.08
1.02
0.810
0.765
4.625
4.375
3.053
2.888
2.775
2.625
2.313
2.188
1.665
1.575
1.388
1.313
1.11
1.05
0.833
0.788
4.75
4.50
3.135
2.970
2.85
2.70
2.375
2.250
1.71
1.62
1.425
1.350
1.14
1.08
0.855
0.810
V
SYMBOL
V
CC
I
CC
V
UVLO
(Note 2)
V
CC
= 3.3V, OUT_,
RESET
not asserted
(Note 3)
V
CC
= 5V, OUT_,
RESET
not asserted
V
CC
rising
1.62
CONDITIONS
MIN
1.0
45
50
1.8
TYP
MAX
5.5
65
70
1.98
V
UNITS
V
µA
2
_______________________________________________________________________________________
Low-Voltage, Quad-/Hex-/Octal-Voltage
µP Supervisors
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
Adjustable Threshold
(IN_ Falling)
IN_ Hysteresis
IN_ Input Current
RESET
SRT = V
CC
Reset Timeout
t
RP
C
SRT
= 1500pF (Note 4)
C
SRT
= 100pF
C
SRT
= open
SRT Ramp Current
SRT Threshold
SRT Hysteresis
IN_ to Reset Delay
RESET
Output-Voltage Low
t
RD
V
OL
IN_ falling
V
CC
= 3.3V, I
SINK
= 10mA,
RESET
asserted
V
CC
= 2.5V, I
SINK
= 6mA,
RESET
asserted
V
CC
= 1.2V, I
SINK
= 50µA,
RESET
asserted
RESET
Output-Voltage High
MR
Input-Voltage Low
MR
Input-Voltage High
MR
Minimum Pulse Width
MR
Glitch Rejection
MR
to Reset Delay
MR
Pullup Resistance
OUTPUTS (OUT_ )
OUT_ Output-Voltage Low
OUT_ Output-Voltage High
IN_ to OUT_ Propagation Delay
V
OL
V
OH
t
D
V
CC
= 3.3V, I
SINK
= 2mA
V
CC
= 2.5V, I
SINK
= 1.2mA
V
CC
≥
2.0V, I
SOURCE
= 6µA
(V
TH
+ 100mV) to (V
TH
- 100mV)
0.8 x
V
CC
20
0.30
0.30
V
V
µs
Pulled up to V
CC
12
V
OH
V
IL
V
IH
0.7 x
V
CC
1
100
200
20
28
V
CC
≥
2.0V, I
SOURCE
= 6µA,
RESET
deasserted
0.8 x
V
CC
0.3 x
V
CC
I
SRT
V
SRT
= 0V
460
1.173
140
2.43
200
3.09
0.206
50
600
1.235
100
20
0.30
0.30
0.30
V
V
V
µs
ns
ns
kΩ
V
740
1.293
µs
nA
V
mV
µs
280
3.92
ms
SYMBOL
V
TH
V
TH
_
HYS
TOL = GND
TOL = V
CC
IN_ rising
Fixed thresholds
Adjustable thresholds
-100
CONDITIONS
MIN
0.388
0.366
TYP
0.394
0.372
0.5
3
16
+100
MAX
0.400
0.378
UNITS
V
% V
TH
µA
nA
MAX16000–MAX16007
_______________________________________________________________________________________
3
Low-Voltage, Quad-/Hex-/Octal-Voltage
µP Supervisors
MAX16000–MAX16007
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
Reference Short-Circuit Current
Reference Output Accuracy
Line Regulation
Reference Load Regulation
Sourcing, 0
≤
I
REF
≤
40µA
WATCHDOG TIMER (MAX16001/MAX16002/MAX16004–MAX16007)
WDI Input-Voltage Low
WDI Input-Voltage High
WDI Pulse Width
Watchdog Timeout Period
Watchdog Startup Period
Watchdog Input Current
WDO
Output-Voltage Low
(MAX16005 Only)
WDO
Output-Voltage High
(MAX16005 Only)
DIGITAL LOGIC
TOL Input-Voltage Low
TOL Input-Voltage High
TOL Input Current
MARGIN
Input-Voltage Low
MARGIN
Input-Voltage High
MARGIN
Pullup Resistance
MARGIN
Delay Time
t
MD
V
IL
V
IH
Pulled up to V
CC
Rising or falling (Note 6)
0.7 x
V
CC
12
20
50
28
V
IL
V
IH
TOL = V
CC
0.7 x
V
CC
100
0.3 x
V
CC
0.3 x
V
CC
V
V
nA
V
V
kΩ
µs
V
OL
V
OH
t
WDI
MAX16001/2/4/6/7
V
WDI
= 0 to V
CC
(Note 5)
V
CC
= 3.3V, I
SINK
= 2mA
V
CC
= 2.5V, I
SINK
= 1.2mA
V
CC
≥
2.0V, I
SOURCE
= 6µA,
WDO
deasserted
0.8 x
V
CC
V
IL
V
IH
(Note 5)
0.7 x
V
CC
50
1.12
35
-1
1.6
54
2.40
72
+1
0.30
0.30
0.3 x
V
CC
V
V
ns
s
s
µA
V
V
V
REF
SYMBOL
CONDITIONS
Shorted to GND
No load
1.200
MIN
TYP
0.8
1.235
0.005
10
1.270
MAX
UNITS
mA
V
%/V
Ω
REFERENCE OUTPUT (MAX16005 Only)
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 be in the correct logic state down to V
CC
= 1V.
Note 3:
Measured with WDI,
MARGIN,
and
MR
unconnected.
Note 4:
The minimum and maximum specifications for this parameter are guaranteed by using the worst case of the SRT ramp cur-
rent and SRT threshold specifications.
Note 5:
Guaranteed by design and not production tested.
Note 6:
Amount of time required for logic to lock/unlock outputs from margin testing.
4
_______________________________________________________________________________________
Low-Voltage, Quad-/Hex-/Octal-Voltage
µP Supervisors
Typical Operating Characteristics
(V
CC
= 3.3V, T
A
= +25°C, unless otherwise noted.)
NORMALIZED THRESHOLD
vs. SUPPLY VOLTAGE
MAX16000 toc02
MAX16000–MAX16007
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX16000 toc01
SUPPLY CURRENT vs. TEMPERATURE
60
WDI, MARGIN, AND MR UNCONNECTED
55
SUPPLY CURRENT (µA)
50
45
40
V
CC
= 2.5V
35
30
V
CC
= 3.3V
V
CC
= 5V
1.010
1.008
NORMALIZED THRESHOLD
1.005
1.003
1.000
0.998
0.995
0.993
0.990
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
1.5
2.0
WDI, MARGIN, AND MR UNCONNECTED
55
SUPPLY CURRENT (µA)
50
45
40
35
30
1.5
2.0
2.5 3.0 3.5 4.0 4.5
SUPPLY VOLTAGE (V)
5.0
5.5
2.5 3.0 3.5 4.0 4.5
SUPPLY VOLTAGE (V)
5.0
5.5
NORMALIZED THRESHOLD
vs. TEMPERATURE
MAX16000 toc04
OUTPUT VOLTAGE vs. SINK CURRENT
100
MAX16000 toc05
OUTPUT VOLTAGE vs. SOURCE CURRENT
MAX16000 toc06
1.001
1.000
NORMALIZED THRESHOLD
0.999
0.998
0.997
1000
800
V
CC
- V
OUT_
(mV)
75
V
OUT
_ (mV)
600
50
400
25
0.996
OUT_ LOW
0.995
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
0
0
1
2
3
4
5
6
SINK CURRENT (mA)
7
8
200
OUT_ HIGH
0
0
5
10
15
20
SOURCE CURRENT (µA)
25
30
MAXIMUM TRANSIENT DURATION
vs. INPUT OVERDRIVE
MAXIMUM TRANSIENT DURATION (µs)
OUTPUT GOES LOW
ABOVE THIS LINE
MAX16000 toc07
RESET TIMEOUT PERIOD
vs. TEMPERATURE
197
RESET TIMEOUT PERIOD (ms)
196
195
194
193
192
191
190
MAX16000 toc08
RESET TIMEOUT DELAY
MAX16000 toc09
600
500
400
300
200
100
0
1
10
100
198
MAX16000 toc03
60
IN1
5V/div
OUT1
2V/div
RESET
2V/div
SRT = V
CC
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
40ms/div
1000
INPUT OVERDRIVE (mV)
_______________________________________________________________________________________
5
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