MAX6388XS31D2-T Maxim Integrated, MAX6388XS31D2-T Datasheet

MAX6388XS31D2-T

Manufacturer Part Number

MAX6388XS31D2-T

Description

Supervisory Circuits

Manufacturer

Maxim Integrated

Series

MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390r

Datasheet

1.ICL7117CMHTD.pdf (10 pages)

Specifications of MAX6388XS31D2-T

Number Of Voltages Monitored

Monitored Voltage

1.8 V to 5 V

Undervoltage Threshold

3 V, Adjustable

Overvoltage Threshold

3.15 V, Adjustable

Output Type

Active High, Push-Pull

Manual Reset

Not Resettable

Watchdog

No Watchdog

Battery Backup Switching

No Backup

Power-up Reset Delay (typ)

40 ms

Supply Voltage - Max

5.5 V

Maximum Operating Temperature

+ 125 C

Mounting Style

SMD/SMT

Package / Case

SC-70

Chip Enable Signals

Maximum Power Dissipation

245 mW

Minimum Operating Temperature

- 40 C

Power Fail Detection

Supply Current (typ)

7 uA

Supply Voltage - Min

1 V

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The MAX6381–MAX6390 microprocessor (µP) supervisory

circuits monitor power-supply voltages from +1.8V to

+5.0V while consuming only 3µA of supply current at

+1.8V. Whenever V

thresholds, the reset output asserts and remains assert-

ed for a minimum reset timeout period after V

above the reset threshold. Reset thresholds are available

from +1.58V to +4.63V, in approximately 100mV incre-

ments. Seven minimum reset timeout delays ranging

from 1ms to 1200ms are available.

The MAX6381/MAX6384/MAX6387 have a push-pull

active-low reset output. The MAX6382/MAX6385/

MAX6388 have a push-pull active-high reset output,

and the MAX6383/MAX6386/MAX6389/MAX6390

have an open-drain active-low reset output. The

MAX6384/MAX6385/MAX6386

debounced manual reset input (with internal pullup

resistor). The MAX6387/MAX6388/MAX6389 have an

auxiliary input for monitoring a second voltage. The

MAX6390 offers a manual reset input with a longer V

reset timeout period (1120ms or 1200ms) and a shorter

manual reset timeout (140ms or 150ms).

The MAX6381/MAX6382/MAX6383 are available in

3-pin SC70 and 6-pin µDFN packages and the

MAX6384–MAX6390 are available in 4-pin SC70 and

6-pin µDFN packages.

19-1839; Rev 5; 7/12

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.

( ) IS FOR MAX6382

(RESET)

Computers

Controllers

Intelligent Instruments

Pin Configurations continued at end of data sheet.

RESET

TOP VIEW

GND

MAX6381

MAX6382

MAX6383

SC70

3 V

General Description

falls below the factory-set reset

SC70/µDFN, Single/Dual Low-Voltage,

Pin Configurations

Critical µP and µC

Power Monitoring

Portable/Battery-

Powered Equipment

Dual Voltage Systems

(RESET)

RESET

GND

Applications

also

MAX6381

MAX6382

MAX6383

µDFN

N.C.

feature

Low-Power µP Reset Circuits

N.C

rises

o Factory-Set Reset Threshold Voltages Ranging

o ±2.5% Reset Threshold Accuracy Over

o Seven Reset Timeout Periods Available: 1ms,

o 3 Reset Output Options

o Reset Output State Guaranteed Valid

o Manual Reset Input (MAX6384/MAX6385/MAX6386)

o Auxiliary RESET IN (MAX6387/MAX6388/MAX6389)

o V

o Negative-Going V

o Low Power Consumption of 6µ µ A at +3.6V

o Pin Compatible with

o Tiny 3-Pin/4-Pin SC70 and 6-Pin µ µ DFN Packages

Note: Insert reset threshold suffix (see Reset Threshold table)

after "XR", "XS", or "LT." Insert reset timeout delay (see Reset

Timeout Delay table) after "D" to complete the part number.

Sample stock is generally held on standard versions only (see

Standard Versions table). Standard versions have an order

increment requirement of 2500 pieces. Nonstandard versions

have an order increment requirement of 10,000 pieces.

Contact factory for availability of nonstandard versions.

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

/V denotes an automotive qualified part.

Ordering Information continued at end of data sheet.

Typical Operating Circuit appears at end of data sheet.

Selector Guide appears at end of data sheet.

MAX6381LT_ _D_+T

MAX6381XR_ _D_+T

M AX 6381X R_ _D _/V + T

MAX6382LT_ _D_+T

MAX6382XR_ _D_+T

from +1.58V to +4.63V in Approximately 100mV

Increments

Temperature (-40°C to +125°C)

20ms, 140ms, 280ms, 560ms, 1120ms,

1200ms (min)

Down to V

Reset Timeout (140ms or 150ms) (MAX6390)

and 3µ µ A at +1.8V

MAX809/MAX810/MAX803/MAX6326/MAX6327/

MAX6328/MAX6346/MAX6347/MAX6348,

and MAX6711/MAX6712/MAX6713

Active-Low Push-Pull

Active-High Push-Pull

Active-Low Open-Drain

Reset Timeout (1120ms or 1200ms)/Manual

PART

= 1V

Ordering Information

Transient Immunity

-40°C to +125°C

TEMP RANGE

Features

PIN-

PACKAGE

6 µDFN

3 SC70

6 µDFN

3 SC70

Related parts for MAX6388XS31D2-T

MAX6388XS31D2-T Summary of contents

Page 1

Rev 5; 7/12 SC70/µDFN, Single/Dual Low-Voltage, General Description The MAX6381–MAX6390 microprocessor (µP) supervisory circuits monitor power-supply voltages from +1.8V to +5.0V while consuming only 3µA of supply current at +1.8V. Whenever V falls below the factory-set reset CC thresholds, ...

Page 2

SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits ABSOLUTE MAXIMUM RATINGS V to GND ..........................................................-0.3V to +6.0V CC RESET Open-Drain Output....................................-0.3V to +6.0V RESET, RESET (push-pull output) ..............-0. MR, RESET IN.............................................-0. Input Current (V ) .............................................................20mA CC ...

Page 3

SC70/µDFN, Single/Dual Low-Voltage, ELECTRICAL CHARACTERISTICS (continued full range -40°C to +125°C, unless otherwise specified. Typical values are PARAMETER SYMBOL MR Minimum Input Pulse Width MR Glitch Rejection MR to Reset Delay MR ...

Page 4

SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE (NO LOAD +3. +5. +2. ...

Page 5

SC70/µDFN, Single/Dual Low-Voltage, PIN 3-PIN SC70 MAX6384/ µDFN MAX6381/ MAX6382 MAX6386/ MAX6383 MAX6390 1 (MAX6382/ 2 MAX6385/ MAX6388) 1 (MAX6381/ MAX6383/ MAX6384/ 2 — MAX6386/ MAX6387/ MAX6390 (MAX6381/ MAX6382/ MAX6383) — — (MAX6384– MAX6390) 3 ...

Page 6

... SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits Detailed Description A µP reset input starts the µ known state. These µP supervisory circuits assert reset to prevent code execution errors during power-up, power-down, or brownout conditions. Reset asserts when V is below the reset threshold; ...

Page 7

SC70/µDFN, Single/Dual Low-Voltage MAX6387 MAX6388 R1 MAX6389 RESET IN R2 GND Figure 1. RESET IN Configuration Reset Timeout Delay SUFFIX MAX6390_ _D4 MAX6390_ _D7 * The MAX6390 has a ...

Page 8

SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits PUSH-PULL PART NUMBER ACTIVE-LOW MAX6381 X MAX6382 MAX6383 MAX6384 X MAX6385 MAX6386 MAX6390* MAX6387 X MAX6388 MAX6389 * The MAX6390 offers a V reset timeout of 1120ms or 1200ms (min) and a manual ...

Page 9

SC70/µDFN, Single/Dual Low-Voltage, TOP VIEW 1 GND MAX6384 MAX6385 MAX6386 MAX6390 RESET 2 (RESET) SC70 ( ) IS FOR MAX6385 1 GND MAX6387 MAX6388 MAX6389 RESET 2 (RESET) SC70 ( ) IS FOR MAX6388 Chip Information PROCESS: BiCMOS Low-Power µP ...

Page 10

... Maxim reserves the right to change the circuitry and specifications 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. 10 Maxim Integrated Products, Inc. 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 © 2012 Maxim Integrated Products Revision History DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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