MAX16074RS15D2+T - Maxim Integrated

General Description

The MAX16072/MAX16073/MAX16074 ultra-small, ultra-

low-power, microprocessor (μP) supervisory circuits feature

a precision band-gap reference, comparator, and

internally trimmed resistors that set the threshold voltage.

Designed to monitor the system supply voltage and assert

an output during power-up, power-down, and brownout

conditions, these devices provide excellent circuit reliability

and low cost by eliminating external components and

adjustments when monitoring nominal system voltage

from 1.8V to 3.6V.

The MAX16072 has a push-pull, active-low reset output,

the MAX16073 has a push-pull, active-high reset output,

and the MAX16074 has an open-drain active-low reset

output. The devices are designed to ignore fast transients

on VCC. The devices also include a manual reset input

(MR).

The MAX16072/MAX16073/MAX16074 are available in a

1mm x 1mm, space-saving, 4-bump, chip-scale package

(UCSP™).

Applications

● Portable/Battery-Powered Equipment

● Cell Phones

● PDAs

● MP3 Players

●Digital Cameras

Features

● Ultra-Low, 0.7μA Supply Current

● Ultra-Small (1mm x 1mm), 4-Bump UCSP

● 20μs, 8ms, 34ms, and 140ms Reset Timeout

Options Available

● Factory-Trimmed Reset Thresholds Available from

1.58V to 3.08V in Approximately 100mV Increments

●±2.5% Threshold Accuracy Over Temperature

● Manual Reset Input

● Guaranteed Reset Valid to VCC = 1.0V

● Immune to Short VCC Transient

19-5112; Rev 2; 3/17

Note: All devices are specified over the -40°C to +85°C

operating temperature range.

Insert the desired suffix numbers (from Table 1) into the blanks

“RS_ _D” to indicate the reset trip threshold. Insert the desired

suffix number (from Table 2) into the blank ”D_+” to indicate the

reset timeout. Minimum order quantity may apply.

UCSP is a trademark of Maxim Integrated Products, Inc.

+Denotes a lead(Pb)-free/RoHS-compliant package.

RESET

INPUT

( ) FOR THE MAX16073 ONLY

µP

(RESET)/

RESET

VCC

GND

MAX16072

MAX16073

MAX16074

VCC

GND

Typical Application Circuit

Ordering Information

PART RESET OUTPUT TYPE PIN-

PACKAGE

MAX16072RS_ _D_+ Push-Pull, Active-Low 4 UCSP

MAX16073RS_ _D_+ Push-Pull, Active-High 4 UCSP

MAX16074RS_ _D_+ Open-Drain, Active-Low 4 UCSP

MAX16072/MAX16073/

MAX16074

nanoPower μP Supervisory Circuits in a

4-Bump (1mm x 1mm) Chip-Scale Package

(Voltages referenced to GND.)

VCC, MR ..................................................................-0.3V to +6V

RESET, RESET Push-Pull ....................... -0.3V to (VCC + 0.3V)

RESET Open-Drain .................................................-0.3V to +6V

Output Current (all pins) ...................................................±20mA

Continuous Power Dissipation (TA = +70°C)

4-Bump UCSP (derate 3mW/°C above +70°C) ...........239mW

Operating Temperature Range ........................... -40°C to +85°C

Storage Temperature Range ............................ -65°C to +150°C

Junction Temperature......................................................+150°C

Soldering Temperature (reflow) .......................................+260°C

(VCC = 1.5V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C and VCC = 3.6V.) (Note 1)

Absolute Maximum Ratings

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

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Operating Voltage Range VCC

TA = 0°C to +85°C 1.0 5.5 V

TA = -40°C to +85°C 1.2 5.5

Supply Current ICC

VCC = 1.8V for VTH ≤ 1.66V 0.7 1.2 µA

VCC = 3.6V, no load 1.0 1.5

Detector Threshold VTH See Table 1

VCC falling, TA = +25°C VTH -

1.5% VTH VTH +

1.5% V

VCC falling,

TA = -40°C to +85°C

VTH -

2.5% VTH VTH +

2.5%

Detector Threshold Hysteresis VHYST VCC rising, VTH ≤ 1.66V (Note 2) 6.3 mV

Detector Threshold Tempco ∆VTH/°C (Note 2) 40 ppm/°C

MR INPUT

MR Input High Voltage

VIH 0.7 x

VCC V

VIL 0.7 x

VCC

MR Pullup Resistance 25 50 75 kΩ

RESET/RESET OUTPUT (Note 3)

Output-Voltage Low VOL

VCC ≥ 1.2V, ISINK = 100µA 0.4 V

VCC ≥ 1.65V, ISINK = 1mA 0.3

Output-Voltage High VOH

VCC ≥ 1.65V, ISOURCE = 500µA 0.8 x

VCC V

VCC ≥ 1.2V, ISOURCE = 50µA 0.8 x

VCC

Open-Drain RESET Output

Leakage Current RESET not asserted (Note 2) 0.1 µA

TIMING

MR Minimum Pulse Width tMPW (Note 2) 0.8 µs

MR Glitch Rejection tEGR (Note 2) 100 ns

MR to RESET/RESET

Propagation Delay

tOFF MR falling 1 2 µs

tON MR rising 200 400 ns

VCC to Reset Delay tDL VCC = (VTH + 100mV) to (VTH -100mV) 20 90 µs

MAX16072/MAX16073/

MAX16074

nanoPower μP Supervisory Circuits in a

4-Bump (1mm x 1mm) Chip-Scale Package

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(VCC = 1.5V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C and VCC = 3.6V.) (Note 1)

Note 1: Production testing done at TA = +25°C only. Overtemperature limits are guaranteed by design and are not production

tested.

Note 2: Guaranteed by design.

Note 3: Reset is guaranteed down to VCC = 1.0V.

(TA = +25°C, unless otherwise noted.)

Electrical Characteristics (continued)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Reset Active Timeout Period tRP

VCC rising, VCC =

(VTH - 100mV) to

(VTH + 100mV)

MAX1607_RSD0+ 20 80 120 µs

MAX1607_RSD1+ 8 13 17 ms

MAX1607_RSD2+ 34 52 69 ms

MAX1607_RSD3+ 140 210 280 ms

Typical Operating Characteristics

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX16072 toc01

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

5.04.54.03.53.02.52.01.5

1.0 5.5

NORMALIZED RESET THRESHOLD

vs. TEMPERATURE

MAX16072 toc03

TEMPERATURE (°C)

NORMALIZED RESET THRESHOLD (%)

603510-15

-0.2

-0.1

0.1

0.2

0.3

-0.3

-40 85

VCC FALLING

VCC RISING

SUPPLY CURRENT

vs. TEMPERATURE

MAX16072 toc02

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

603510-15

0.5

1.0

1.5

2.0

2.5

3.0

-40 85

VCC = 5V

VCC = 3V

VCC = 1.8V

MAX16072/MAX16073/

MAX16074

nanoPower μP Supervisory Circuits in a

4-Bump (1mm x 1mm) Chip-Scale Package

www.maximintegrated.com Maxim Integrated

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(TA = +25°C, unless otherwise noted.)

Typical Operating Characteristics (continued)

OUTPUT LOW VOLTAGE

vs. SINK CURRENT

MAX16072 toc04

ISINK (mA)

VOL (V)

18162 4 6 10 128 14

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

0 20

VCC = 5V

VCC = 3V

VCC = 1.8V

VCC TO RESET PROPAGATION DELAY

vs. TEMPERATURE

MAX16072 toc07

PROPAGATION DELAY (µs)

TEMPERATURE (

603510-15-40 85

VOD = OVERDRIVE VOLTAGE

VCC FALLING

VOD = 100mV

VOD = 10mV

VOD = 20mV

VOD = 200mV

MR TO RESET DELAY (tOFF)

vs. VCC

MAX16072 toc10

VCC (V)

RESET DELAY (µs)

2.4752.2001.925

0.25

0.50

0.75

1.00

1.25

1.650 2.750

MR FALLING

MAXIMUM TRANSIENT DURATION

vs. RESET THRESHOLD OVERDRIVE

MAX16072 toc06

RESET THRESHOLD OVERDRIVE (mV)

TRANSIENT DURATION (µs)

10010

1 1000

VRST = 1.63V

RESET OCCURS ABOVE LINES

VRST = 3.08V

MR TO RESET DELAY (tON)

vs. VCC

MAX16072 toc09

(V)

RESET DELAY (ns)

2.4752.2001.925

120

150

1.650 2.750

MR RISING

MR TURN-OFF

MAX16072 toc12

1V/div

200ns/div

RESET

1V/div

OUTPUT HIGH VOLTAGE

vs. SOURCE CURRENT

MAX16072 toc05

VOH (V)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

ISOURCE (mA)

18162 4 6 10 128 140 20

VCC = 1.8V

VCC = 3V

VCC = 5V

MAX16072 toc08

TEMPERATURE (°C)

PROPAGATION DELAY (µS)

603510-15

100

120

-40 85

VOD = 20mV

VOD = 200mV

VOD = 100mV

VCC TO RESET PROPAGATION DELAY

vs. TEMPERATURE

VOD = OVERDRIVE VOLTAGE

VCC RISING

VOD = 10mV

MR TURN-ON

MAX16072 toc11

1V/div

100ns/div

RESET

1V/div

MAX16072/MAX16073/

MAX16074

nanoPower μP Supervisory Circuits in a

4-Bump (1mm x 1mm) Chip-Scale Package

Maxim Integrated

│

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Bump Description

Bump Conguration

UCSP

( ) FOR THE MAX16073 ONLY

MAX16072

MAX16073

MAX16074

TOP VIEW

(BUMP SIDE DOWN)

1 2

GND VCC

RESET/

(RESET)

BUMP NAME FUNCTION

MAX16072 MAX16073 MAX16074

A1 A1 A1 GND Ground

B1 — — RESET

Active-Low Push-Pull Reset Output. RESET changes from high to

low when VCC drops below the detector threshold (VTH) or MR is

pulled low. RESET remains low for the reset timeout period after VCC

exceeds VTH and MR is high. When MR is low, RESET is low.

—B1 —RESET

Active-High Push-Pull Reset Output. RESET changes from low to high

when VCC drops below the detector threshold (VTH) or MR is pulled low.

RESET remains high for the reset timeout period after VCC exceeds

VTH and MR is high. When MR is low, RESET is high.

— — B1 RESET

Active-Low Open-Drain Reset Output. RESET changes from high-

impedance to active-low when VCC drops below the detector

threshold (VTH) or MR is pulled low. RESET remains low for the

reset timeout period after VCC exceeds the reset threshold and MR is

high. When MR is low, RESET is low.

A2 A2 A2 VCC Supply Voltage and Input for the Reset Threshold Monitor

B2 B2 B2 MR

Active-Low Manual-Reset Input. Drive low to force a reset. Reset

remains active as long as MR is low and for the reset timeout period

(if applicable) after MR is driven high. MR has an internal pullup

resistor connected to VCC, and may be left unconnected if not used.

MAX16072/MAX16073/

MAX16074

nanoPower μP Supervisory Circuits in a

4-Bump (1mm x 1mm) Chip-Scale Package

www.maximintegrated.com Maxim Integrated

│

Detailed Description

The MAX16072/MAX16073/MAX16074 ultra-small,

ultra-low-power, µP supervisory circuits feature a preci-

sion band-gap reference, comparator, and internally

trimmed resistors that set specified trip threshold volt-

ages. Designed to monitor the system supply voltage and

an output during power-up, power-down, and brownout

conditions, these devices provide excellent circuit reliabil-

ity and low cost by eliminating external components and

adjustments when monitoring nominal system voltage

from 1.8V to 3.6V.

The MAX16072 has a push-pull active-low reset output,

the MAX16073 has a push-pull active-high reset output,

and the MAX16074 has an open-drain active-low reset

output. The devices are designed to ignore fast transients

on VCC. The devices also include a manual reset input

(MR). When MR is low, reset is asserted. When MR is

high and VCC is above the detector threshold (VTH), reset

is not asserted.

Supply and Monitored Input (VCC)

The MAX16072/MAX16073/MAX16074 operate with a

VCC supply voltage from 1.2V to 5.5V. VCC has a rising

threshold of VTH + VHYST and a falling threshold of VTH.

When VCC rises above VTH + V

HYST and MR is high,

RESET goes high (RESET goes low) after the reset time-

out period (tRP). See Figure 1.

When VCC falls below VTH, RESET goes low (RESET

goes high) after a fixed delay (tRD).

Figure 1. MAX16072/MAX16073/MAX16074 Timing Diagram

Functional Diagrams

tMPW

tON tDL tRP tOFF tON

t < tEGR t < tMPW

RESET

VCC

VTH VTH + VHYST

( ) MAX16073 ONLY

RESET

TIMEOUT

RESET

(RESET)

VCC

GND

MAX16074MAX16072

MAX16073

RESET

TIMEOUT

RESET

VCC

GND

MAX16072/MAX16073/

MAX16074

nanoPower μP Supervisory Circuits in a

4-Bump (1mm x 1mm) Chip-Scale Package

www.maximintegrated.com Maxim Integrated

│

Manual Reset Input (MR)

Many µP-based products require manual-reset capability,

allowing the operator, a test technician, or external logic

circuit to initiate a reset. A logic-low on MR asserts reset.

Reset remains asserted while MR is low, and for the reset

active timeout period (tRP) or delay (tON) after MR returns

high. This input has an internal 50kΩ pullup resistor, so

it can be left unconnected if it is not used. MR can be

driven with TTL or CMOS logic levels, or with open-drain/

collector outputs. For manual operation, connect a nor-

mally open momentary switch from MR to GND; external

debouncing circuitry is not required. If MR is driven from

long cables or if the device is used in a noisy environment,

connect a 0.1µF capacitor from MR to ground to provide

additional noise immunity.

Applications Information

Interfacing to µP with

Bidirectional Reset Pins

Since RESET on the MAX16074 is open-drain, this

device interfaces easily with µPs that have bidirectional

reset pins. Connecting the µP supervisor’s RESET output

directly to the µP’s RESET pin with a single pullup resistor

allows either device to assert reset (Figure 2).

Negative-Going VCC Transients

The MAX16072/MAX16073/MAX16074 family of devices

is relatively immune to short-duration, negative-going VCC

transients (glitches). The Typical Operating Characteristics

show the Maximum Transient Duration vs. Reset Threshold

Overdrive graph, for which reset pulses are not generated.

The graph shows the maximum pulse width that a nega-

tive-going VCC transient may typically have when issuing

a reset signal. As the amplitude of the transient increases,

the maximum allowable pulse width decreases.

Figure 2. Interfacing to μP with Bidirectional Reset Pins

Table 2. Reset Timeout Periods

Table 1. Factory Trimmed Reset

Thresholds

RESET

INPUT

VCC

µP

VCC

RESET

GND

VCC

MAX16074 MOTOROLA

68HCXX

THRESHOLD

SUFFIX

RESET TRIP THRESHOLD (V)

TA = +25°C TA = -40°C to +85°C

TYP MIN MAX

15 1.58 1.54 1.61

16 1.63 1.60 1.66

17 1.67 1.62 1.71

18 1.80 1.76 1.85

19 1.90 1.85 1.95

20 2.00 1.95 2.05

21 2.10 2.05 2.15

22 2.20 2.145 2.25

23 2.32 2.262 2.375

24 2.40 2.34 2.46

25 2.50 2.437 2.562

26 2.63 2.564 2.69

27 2.70 2.633 2.768

28 2.80 2.63 2.87

29 2.93 2.857 3.0

30 3.00 2.925 3.075

31 3.08 3.003 3.15

RESET TIMEOUT PERIODS

SUFFIX MIN TYP MAX UNITS

0 20 80 120 µs

1813 17 ms

2 34 52 69 ms

3 140 210 280 ms

MAX16072/MAX16073/

MAX16074

nanoPower μP Supervisory Circuits in a

4-Bump (1mm x 1mm) Chip-Scale Package

www.maximintegrated.com Maxim Integrated

│

Package Information

For the latest package outline information and land patterns

(footprints), go to www.maximintegrated.com/packages. Note

that a “+”, “#”, or “-” in the package code indicates RoHS status

only. Package drawings may show a different suffix character, but

the drawing pertains to the package regardless of RoHS status.

Chip Information

PROCESS: BiCMOS

PACKAGE TYPE PACKAGE CODE OUTLINE NO.

4 UCSP R41C1-1 21-0242

MAX16072/MAX16073/

MAX16074

nanoPower μP Supervisory Circuits in a

4-Bump (1mm x 1mm) Chip-Scale Package

www.maximintegrated.com Maxim Integrated

│

Revision History

REVISION

NUMBER

REVISION

DATE DESCRIPTION PAGES

CHANGED

0 1/10 Initial release —

13/15 Changed upper VCC supply range from 2.75V to 5.5V 2, 3, 6

2 3/17 Updated title to include “nanoPower” 1–9

Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses

are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time. The parametric values (min and max limits)

shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.

Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.

MAX16072/MAX16073/

MAX16074

nanoPower μP Supervisory Circuits in a

4-Bump (1mm x 1mm) Chip-Scale Package

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MAX16072RS15D0+T MAX16072RS15D1+T MAX16072RS15D2+T MAX16072RS15D3+T MAX16072RS16D0+T

MAX16072RS16D1+T MAX16072RS16D2+T MAX16072RS16D3+T MAX16072RS17D0+T MAX16072RS17D1+T

MAX16072RS17D2+T MAX16072RS17D3+T MAX16072RS18D0+T MAX16072RS18D1+T MAX16072RS18D2+T

MAX16072RS18D3+T MAX16072RS19D0+T MAX16072RS19D1+T MAX16072RS19D2+T MAX16072RS19D3+T

MAX16072RS20D0+T MAX16072RS20D1+T MAX16072RS20D2+T MAX16072RS20D3+T MAX16072RS21D0+T

MAX16072RS21D1+T MAX16072RS21D2+T MAX16072RS21D3+T MAX16072RS22D0+T MAX16072RS22D1+T

MAX16072RS22D2+T MAX16072RS22D3+T MAX16072RS23D0+T MAX16072RS23D1+T MAX16072RS23D2+T

MAX16072RS23D3+T MAX16072RS24D0+T MAX16072RS24D1+T MAX16072RS24D2+T MAX16072RS24D3+T

MAX16072RS25D0+T MAX16072RS25D1+T MAX16072RS25D2+T MAX16072RS25D3+T MAX16072RS26D0+T

MAX16072RS26D1+T MAX16072RS26D2+T MAX16072RS26D3+T MAX16072RS27D0+T MAX16072RS27D1+T

MAX16072RS27D2+T MAX16072RS27D3+T MAX16072RS28D0+T MAX16072RS28D1+T MAX16072RS28D2+T

MAX16072RS28D3+T MAX16072RS29D0+T MAX16072RS29D1+T MAX16072RS29D2+T MAX16072RS29D3+T

MAX16072RS30D0+T MAX16072RS30D1+T MAX16072RS30D2+T MAX16072RS30D3+T MAX16072RS31D0+T

MAX16072RS31D1+T MAX16072RS31D2+T MAX16072RS31D3+T MAX16073RS15D0+T MAX16073RS15D1+T

MAX16073RS15D2+T MAX16073RS15D3+T MAX16073RS16D0+T MAX16073RS16D1+T MAX16073RS16D2+T

MAX16073RS16D3+T MAX16073RS17D0+T MAX16073RS17D1+T MAX16073RS17D2+T MAX16073RS17D3+T

MAX16073RS18D0+T MAX16073RS18D1+T MAX16073RS18D2+T MAX16073RS18D3+T MAX16073RS19D0+T

MAX16073RS19D1+T MAX16073RS19D2+T MAX16073RS19D3+T MAX16073RS20D0+T MAX16073RS20D1+T

MAX16073RS20D2+T MAX16073RS20D3+T MAX16073RS21D0+T MAX16073RS21D1+T MAX16073RS21D2+T

MAX16073RS21D3+T MAX16073RS22D0+T MAX16073RS22D1+T MAX16073RS22D2+T MAX16073RS22D3+T