MAX6364PUT31+T Maxim Integrated Products, MAX6364PUT31+T Datasheet

MAX6364PUT31+T

Manufacturer Part Number

MAX6364PUT31+T

Description

IC SUPERVISOR MPU LP SOT23-6

Manufacturer

Maxim Integrated Products

Type

Battery Backup Circuitr

Datasheet

1.MAX6361LUT26T.pdf (12 pages)

Specifications of MAX6364PUT31+T

Number Of Voltages Monitored

Output

Open Drain or Open Collector

Reset

Active Low

Reset Timeout

150 ms Minimum

Voltage - Threshold

3.08V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

SOT-23-6

Monitored Voltage

2.5 V, 3 V, 3.3 V, 5 V

Undervoltage Threshold

3 V

Overvoltage Threshold

3.15 V

Output Type

Active Low, Open Drain

Manual Reset

Not Resettable

Watchdog

No Watchdog

Battery Backup Switching

Backup

Power-up Reset Delay (typ)

280 ms

Supply Voltage (max)

5.5 V

Supply Voltage (min)

0 V

Supply Current (typ)

15 uA

Maximum Power Dissipation

696 mW

Maximum Operating Temperature

+ 85 C

Mounting Style

SMD/SMT

Minimum Operating Temperature

- 40 C

Power Fail Detection

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

MAX6364PUT31+T
MAX6364PUT31+TTR

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19-1615; Rev 3; 11/05

The MAX6361–MAX6364 supervisory circuits reduce the

complexity and number of components required for

power-supply monitoring and battery control functions in

microprocessor (µP) systems. The circuits significantly

improve system reliability and accuracy compared to that

obtainable with separate ICs or discrete components.

Their functions include µP reset, backup battery

switchover, and power failure warning.

The MAX6361–MAX6364 operate from supply voltages as

low as +1.2V. The factory-preset reset threshold voltage

ranges from 2.32V to 4.63V (see Ordering Information).

These devices provide a manual reset input (MAX6361),

watchdog timer input (MAX6362), battery-on output

(MAX6363), and an auxiliary adjustable reset input

(MAX6364). In addition, each part type is offered in three

reset output versions: an active-low open-drain reset, an

active-low open-drain reset, and an active-high open-

drain reset (see Selector Guide at end of data sheet).

Selector Guide appears at end of data sheet.

Typical Operating Circuit appears at end of data sheet.

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

Pin Configurations continued at end of data sheet.

TOP VIEW

Computers

Controllers

Intelligent Instruments

Critical µP/µC

Power Monitoring

RESET, RESET

SOT23, Low-Power µP Supervisory Circuits

GND

________________________________________________________________ Maxim Integrated Products

General Description

SOT23-6

MAX6361

Pin Configurations

Fax Machines

Industrial Control

POS Equipment

Portable/Battery-Powered

Equipment

Applications

BATT

OUT

♦ Low +1.2V Operating Supply Voltage

♦ Precision Monitoring of +5.0V, +3.3V, +3.0V, and

♦ Debounced Manual Reset Input (MAX6361)

♦ Watchdog Timer with 1.6s Timeout Period

♦ Battery-On Output Indicator (MAX6363)

♦ Auxiliary User-Adjustable RESET IN (MAX6364)

♦ Three Available Output Structures

♦ RESET/RESET Valid Down to 1.2V Guaranteed

♦ Power-Supply Transient Immunity

♦ 150ms (min) Reset Timeout Period

♦ Small 6-Pin SOT23 Package

Note: These parts offer a choice of reset threshold voltages.

From the table below, select the suffix corresponding to the

desired threshold voltage and insert it into the part number to

complete it. When ordering from the factory, there is a 2500-

piece minimum on the SOT package (tape-and-reel only).

Devices are available in both leaded and lead-free packaging.

Specify lead-free by replacing "-T" with "+T" when ordering.

MAX6361LUT_ _-T

MAX6361PUT_ _-T

MAX6361HUT_ _-T

MAX6362LUT_ _-T

MAX6362PUT_ _-T

MAX6362HUT_ _-T

MAX6363LUT_ _-T

MAX6363PUT_ _-T

MAX6363HUT_ _-T

MAX6364LUT_ _-T

MAX6364PUT_ _-T

MAX6364HUT_ _-T

+2.5V Power-Supply Voltages

(MAX6362)

SUFFIX

Push-Pull RESET, Open-Drain RESET,

Open-Drain RESET

with Battery Backup

PART

or V

BATT

)

4.50

4.25

3.00

2.85

2.55

2.25

RESET THRESHOLD RANGES (V)

MIN

-40°C to +85°C

TEMP. RANGE

Ordering Information

TYP

4.63

4.38

3.08

2.93

2.63

2.32

PIN-PACKAGE

6 SOT23-6

Features

MAX

4.75

4.50

3.15

3.00

2.70

2.38

Related parts for MAX6364PUT31+T

MAX6364PUT31+T Summary of contents

Page 1

... Pin Configurations continued at end of data sheet. Selector Guide appears at end of data sheet. Typical Operating Circuit appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. with Battery Backup ♦ ...

Page 2

SOT23, Low-Power µP Supervisory Circuits with Battery Backup ABSOLUTE MAXIMUM RATINGS Terminal Voltages (with respect to GND BATT, OUT.......................................................-0.3V to +6V CC RESET (open drain), RESET (open drain) ................-0.3V to +6V BATT ON, RESET (push-pull), RESET IN, WDI.......................................................-0.3V ...

Page 3

SOT23, Low-Power µP Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued +2.4V to +5.5V 3V BATT A noted.) (Note 1) PARAMETER SYMBOL V RESET Output Voltage V RESET Output Voltage V RESET, RESET Output Leakage I Current ...

Page 4

SOT23, Low-Power µP Supervisory Circuits with Battery Backup (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE (NO LOAD BATT -40 - ...

Page 5

SOT23, Low-Power µP Supervisory Circuits (T = +25°C, unless otherwise noted.) A BATTERY SUPPLY CURRENT vs. SUPPLY VOLTAGE 2.93V 2.8V BATT 2.5V BATT ...

Page 6

SOT23, Low-Power µP Supervisory Circuits with Battery Backup Detailed Description The Typical Operating Circuit shows a typical connection for the MAX6361–MAX6364 family. OUT powers the stat- ic random-access memory (SRAM). OUT is internally connected greater ...

Page 7

SOT23, Low-Power µP Supervisory Circuits Operating Circuit, the MAX6362 monitors two supply voltages. To monitor the secondary 5V logic or analog supply with a 4.60V nominal programmed reset thresh- old, choose R2 = 100kΩ, and calculate R1 = 273kΩ. A ...

Page 8

SOT23, Low-Power µP Supervisory Circuits with Battery Backup Watchdog Software Considerations To help the watchdog timer monitor software execution more closely, set and reset the watchdog input at dif- ferent points in the program, rather than “pulsing” the watchdog input ...

Page 9

SOT23, Low-Power µP Supervisory Circuits MANUAL RESET WATCHDOG PART INPUT INPUT WDI MR ✓ MAX6361LUT_ _ ✓ MAX6361PUT_ _ ✓ MAX6361HUT_ _ MAX6362LUT_ _ MAX6362PUT_ _ MAX6362HUT_ _ MAX6363LUT_ _ MAX6363PUT_ _ MAX6363HUT_ _ MAX6364LUT_ _ MAX6364PUT_ _ MAX6364HUT_ _ ...

Page 10

SOT23, Low-Power µP Supervisory Circuits with Battery Backup TOP VIEW RESET, RESET 1 MAX6362 GND 2 WDI 3 SOT23-6 Typical Operating Circuit 2.4V TO 5.5V UNREGULATED DC VOLTAGE 0.1µ RESET RESET IN R2 MAX6364 OUT BATT 3.6V ...

Page 11

SOT23, Low-Power µP Supervisory Circuits ______________________________________________________________________________________ with Battery Backup Package Information PACKAGE OUTLINE, SOT 6L BODY 21-0058 ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products ...

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