MAXIM MAX16060, MAX16061, MAX16062 User Manual

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 func­tions for complex multivoltage systems. The MAX16060
monitors four voltages, the MAX16061 monitors six volt­ages, and the MAX16062 monitors eight voltages.

These devices offer independent outputs for each mon­itored 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 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.

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

MAX16060/MAX16061/MAX16062

1% Accurate, Quad-/Hex-/Octal-Voltage

µP Supervisors

________________________________________________________________________________________________________________________________

Maxim Integrated Products

1

Ordering Information

Typical Operating Circuit

19-4099; 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.

Note: The “_” is a placeholder for the input voltage threshold.

See Table 1. The MAX16060/MAX16061/MAX16062 are avail­able in factory-preset thresholds/configuration combinations.
Choose the desired combination and complete part number
from Table 1.

+

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.

Storage Equipment

Servers

Networking/Telecommun­ication Equipment

Multivoltage ASICs

Automotive

Applications

V

SRT

MAX16061A

MARGIN

RESET

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

WDI

RST

I/O

PART TEMP RANGE PIN-PACKAGE

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*

CC

V

IN1

V

IN2

V

IN3

V

IN4

V

IN5

V

IN6

IN1

IN2

IN3

IN4

IN5

IN6

MR

GNDμPTOL

MAX16060/MAX16061/MAX16062

1% Accurate, Quad-/Hex-/Octal-Voltage
µP Supervisors

2

______________________________________________________________________________________________________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC= 2.0V to 5.5V, TA= -40°C to +125°C, unless otherwise specified. Typical values are at VCC= 3.3V, TA= +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.

VCC, OUT_, IN_, RESET 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_, WDI).........................................±20mA

Continuous Power Dissipation (T

A

= +70°C)

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

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

Operating Voltage Range V

Supply Current (Note 3) I

UVLO (Undervoltage Lockout) V

UVLO Hysteresis V

IN_ (See Table 1)

Threshold Voltages (IN_ Falling) V

Adjustable Threshold
(IN_ Falling)

IN_ Hysteresis VTH_

IN_ Input Current

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CC

CC

UVLO

UVLO_HYS

TH

V

TH

(Note 2) 1.0 5.5 V

VCC = 3.3V, OUT_, RESET not asserted 45 65

VCC = 5V, OUT_, RESET not asserted 50 70

V

rising 1.62 1.80 1.98 V

CC

3.3V threshold, TOL = GND 3.069 3.102 3.135

3.3V threshold, TOL = V

2.5V threshold, TOL = GND 2.325 2.350 2.375

2.5V threshold, TOL = V

1.8V threshold, TOL = GND 1.674 1.692 1.710

1.8V threshold, TOL = V

TOL = GND 0.390 0.394 0.398

TOL = V

IN_ rising 0.5 % V

HYS

Fixed thresholds 3 16 µA

Adjustable thresholds -100 +100 nA

CC

65 mV

CC

CC

CC

2.904 2.937 2.970

2.200 2.225 2.250

1.584 1.602 1.620

0.369 0.373 0.377

µA

V

V

TH

MAX16060/MAX16061/MAX16062

1% Accurate, Quad-/Hex-/Octal-Voltage

µP Supervisors

______________________________________________________________________________________________________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(VCC= 2.0V to 5.5V, TA= -40°C to +125°C, unless otherwise specified. Typical values are at VCC= 3.3V, TA= +25°C.) (Note 1)

RESET

Reset Timeout t

SRT Ramp Current I

SRT Threshold 1.173 1.235 1.293 V

SRT Hysteresis 100 mV

IN_ to Reset Delay t

RESET Output-Voltage High V

MR Input-Voltage Low V

MR Input-Voltage High V

MR Minimum Pulse Width 1µs
MR Glitch Rejection 100 ns
MR to Reset Delay 200 ns
MR Pullup Resistance Pulled up to V

OUTPUTS (OUT_ )

OUT_ Output-Voltage Low V

OUT_ Output-Voltage High V

IN_ to OUT_ Propagation Delay t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RP

SRT

RD

OL

OH

OL

OH

D

SRT = V

C

C

C

V

IN_ falling 20 µs

V

VCC = 2.5V, I

VCC = 1.2V, I

V
deasserted

IL

IH

VCC = 3.3V, I

VCC = 2.5V, I

V

(VTH + 100mV) to (VTH - 100mV) 20 µs

CC

= 1500pF (Note 4) 2.43 3.09 3.92

SRT

= 100pF 0.206

SRT

= open 50 µs

SRT

= 0V 460 600 740 nA

SRT

= 3.3V , I

C C

≥ 2.0V, I

CC

≥ 2.0V, I

CC

= 10m A, RESET asser ted 0.3

S IN K

= 6mA, RESET asser ted 0.3RESET Output-Voltage Low V

SINK

= 50µA, RESET asser ted 0.3

SINK

= 6µA, RESET

SOURCE

CC

= 2mA 0.3

SINK

= 1.2mA 0.3

SINK

= 6µA

SOURCE

140 200 280

0.8 x
V

CC

0.3 x
V

CC

0.7 x
V

CC

12 20 28 kΩ

0.8 x
V

CC

ms

V

V

V

V

V

V

MAX16060/MAX16061/MAX16062

1% Accurate, Quad-/Hex-/Octal-Voltage
µP Supervisors

4

______________________________________________________________________________________________________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VCC= 2.0V to 5.5V, TA= -40°C to +125°C, unless otherwise specified. Typical values are at VCC= 3.3V, TA= +25°C). (Note 1)

Note 1: Devices are tested at T

A

= +25°C and guaranteed by design for TA= T

MIN

to T

MAX

.

Note 2: The outputs are guaranteed to remain asserted 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.

WATCHDOG TIMER

WDI Input-Voltage Low V

WDI Input-Voltage High V

WDI Pulse Width (Note 5) 50 ns

Watchdog Timeout Period t

Watchdog Startup Period 35 54 72 s

Watchdog Input Current V

DIGITAL LOGIC

TOL Input-Voltage Low V

TOL Input-Voltage High V

TOL Input Current TOL = V

MARGIN Input-Voltage Low V

MARGIN Input-Voltage High V

MARGIN Pullup Resistance Pulled up to V
MARGIN Delay Time t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

IL

IH

WDI

IL

IH

IL

IH

MD

0.7 x
V

CC

1.12 1.60 2.40 s

= 0 to VCC (Note 5) -1 +1 µA

WDI

0.7 x
V

CC

CC

0.7 x
V

CC

CC

Rising or falling (Note 6) 50 µs

12 20 28 kΩ

0.3 x
V

CC

0.3 x
V

CC

100 nA

0.3 x
V

CC

V

V

V

V

V

V

Typical Operating Characteristics

(VCC= 3.3V, TA = +25°C, unless otherwise noted.)

SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (μA)

MAX16060/1/2 toc01

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

30

35

40

45

50

55

60

WDI, MARGIN, AND MR UNCONNECTED

SUPPLY CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

SUPPLY CURRENT (μA)

MAX16060/1/2 toc02

-40 -25 -10 5 20 35 50 65 80 95 110 125

30

35

40

45

50

55

60

WDI, MARGIN, AND MR UNCONNECTED

VCC = 2.5V

VCC = 3.3V

VCC = 5V

NORMALIZED THRESHOLD

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

NORMALIZED THRESHOLD

MAX16060/1/2 toc03

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

0.9900

0.9925

0.9950

0.9975

1.0000

1.0025

1.0050

1.0075

1.0100

NORMALIZED THRESHOLD

vs. TEMPERATURE

TEMPERATURE (°C)

NORMALIZED THRESHOLD

MAX16060/1/2 toc04

-40 -25 -10 5 20 35 50 65 80 95 110 125

0.995

0.996

0.997

0.998

0.999

1.000

1.001

OUTPUT VOLTAGE vs. SINK CURRENT

SINK CURRENT (mA)

V

OUT

_ (mV)

MAX16060/1/2 toc05

012345678

0

25

50

75

100

OUT_ LOW

OUTPUT VOLTAGE vs. SOURCE CURRENT

SOURCE CURRENT (μA)

V

CC

- V

OUT_

(mV)

MAX16060/1/2 toc06

0 5 10 15 20 25 30

0

200

400

600

800

1000

OUT_ HIGH

RESET TIMEOUT PERIOD

vs. TEMPERATURE

TEMPERATURE (°C)

RESET TIMEOUT PERIOD (ms)

MAX16060/1/2 toc08

-40 -25 -10 5 20 35 50 65 80 95 110 125

190

191

192

193

194

195

196

197

198

1 10 100 1000

MAXIMUM TRANSIENT DURATION

vs. INPUT OVERDRIVE

MAX16060/1/2 toc07

INPUT OVERDRIVE (mV)

MAXIMUM TRANSIENT DURATION (μs)

600

0

100

200

300

400

500

OUTPUT GOES LOW
ABOVE THIS LINE

RESET TIMEOUT DELAY

MAX16060/1/2 toc09

OUT1
2V/div

IN1
5V/div

40ms/div

RESET
2V/div

SRT = V

CC

MAX16060/MAX16061/MAX16062

1% Accurate, Quad-/Hex-/Octal-Voltage

µP Supervisors

_______________________________________________________________________________________

5

Typical Operating Characteristics (continued)

(VCC= 3.3V, TA = +25°C, unless otherwise noted.)

MARGIN DISABLE FUNCTION

MAX16060/1/2 toc13

OUT_
2V/div

MARGIN
2V/div

100μs/div

RESET
2V/div

OUT_ AND RESET ARE BELOW RESPECTIVE
THRESHOLDS

WATCHDOG TIMEOUT PERIOD

vs. TEMPERATURE

TEMPERATURE (°C)

WATCHDOG TIMEOUT PERIOD (s)

MAX16060/1/2 toc11

-40 -25 -10 5 20 35 50 65 80 95 110 125

1.50

1.51

1.52

1.53

1.54

1.55

1.56

1.57

1.58

1.59

1.60

MARGIN ENABLE FUNCTION

MAX16060/1/2 toc12

OUT_
2V/div

MARGIN
2V/div

100μs/div

RESET
2V/div

OUT_ AND RESET ARE
BELOW RESPECTIVE
THRESHOLDS

1000

0.01 0.1 1 10 100 1000

100

10

1

0.1

0.01

RESET TIMEOUT PERIOD

vs. C

SRT

MAX16060/1/2 toc10

C

SRT

(nF)

t

RP

(ms)

MAX16060/MAX16061/MAX16062

1% Accurate, Quad-/Hex-/Octal-Voltage
µP Supervisors

6

______________________________________________________________________________________________________________________________________________________________________________