MAX6368PKA31+T datasheet, PDF - EEWORLD Datasheet

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MAX6368PKA31+T: Descriptionsupervisory circuits upower supervisor; CategoryPower/power management The power supply circuit; File Size164KB，15 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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MAX6368PKA31+T Overview

supervisory circuits upower supervisor

MAX6368PKA31+T Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Parts packaging code	SOT-23
package instruction	LSSOP, TSSOP8,.1
Contacts	8
Reach Compliance Code	compli
ECCN code	EAR99
Factory Lead Time	6 weeks
Other features	AUXILIARY USER-ADJUSTABLE RESET IN
Adjustable threshold	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G8
JESD-609 code	e4
length	2.9 mm
Humidity sensitivity level	1
Number of channels	2
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Encapsulate equivalent code	TSSOP8,.1
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	2.5/5 V
Certification status	Not Qualified
Maximum seat height	1.45 mm
Maximum supply current (Isup)	0.05 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)
Nominal supply voltage (Vsup)	2.8 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	1.625 mm
Base Number Matches	1

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19-1658; Rev 5; 10/11

SOT23, Low-Power µP Supervisory Circuits

with Battery Backup and Chip-Enable Gating

General Description

The MAX6365–MAX6368 supervisory circuits simplify

power-supply monitoring, battery-backup control func-

tions, and memory write protection in microprocessor

(µP) systems. The circuits significantly improve the size,

accuracy, and reliability of modern systems with an ultra-

small integrated solution.

These devices perform four basic system functions:

1) Provide a µP reset output during V

supply power-

up, power-down, and brownout conditions.

2) Internally control V

to backup-battery switching to

maintain data or low-power operation for CMOS

RAM, CMOS µPs, real-time clocks, and other digital

logic when the main supply fails.

3) Provide memory write protection through internal

chip-enable gating during supply or processor faults.

4) Include one of the following options: a manual reset

input (MAX6365), a watchdog timer function

(MAX6366), a battery-on output (MAX6367), or an

auxiliary user-adjustable reset input (MAX6368).

The MAX6365–MAX6368 operate from V

supply volt-

ages as low as 1.2V. The factory preset reset threshold

voltages range from 2.32V to 4.63V (see the

Ordering

Information).

In addition, each part is offered in three

reset output versions: push-pull active low, open-drain

active low, or open-drain active high (see the

Selector

Guide).

The MAX6365–MAX6368 are available in minia-

ture 8-pin SOT23 packages.

Features

Low +1.2V Operating Supply Voltage (V

or V

BATT

)

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

+2.5V Power-Supply Voltages

On-Board Gating of Chip-Enable Signals, 1.5ns

Propagation Delay

Debounced Manual Reset Input (MAX6365)

Watchdog Timer, 1.6s Timeout (MAX6366)

Battery-On Output Indicator (MAX6367)

Auxiliary User-Adjustable RESET IN (MAX6368)

Low 10µA Quiescent Supply Current

Three Available Output Structures

Push-Pull

RESET

Open-Drain

RESET

Open-Drain RESET

RESET/RESET Valid Down to 1.2V Guaranteed

or V

BATT

)

Power-Supply Transient Immunity

150ms min Reset Timeout Period

Miniature 8-Pin SOT23 Package

MAX6365–MAX6368

Ordering Information

PART*

MA X6 36 5

LKA_ _-T

MAX6365PKA_ _-T

MAX6365HKA_ _-T

MA X6 36 6

LKA_ _-T

MAX6366PKA_ _-T

MAX6366HKA_ _-T

MA X6 36 7

LKA_ _-T

MAX6367PKA_ _-T

MAX6367PKA_ _/V-T

MAX6367HKA_ _-T

MA X6 36 8

LKA_ _-T

MAX6368PKA_ _-T

MAX6368HKA_ _-T

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

8 SOT23

Applications

Critical µP/µC Power

Monitoring

Fax Machines

Industrial Control

Computers/Controllers

Portable/Battery-

Powered Equipment

Set-Top Boxes

POS Equipment

Pin Configurations

TOP VIEW

RESET, RESET

CE IN

GND

CE OUT

BATT

OUT

MAX6365

SOT23

Pin Configurations continued at end of data sheet.

*These

parts offer a choice of reset threshold voltages. From the

Reset Threshold Ranges table, insert the desired threshold volt-

age code in the blank to complete the part number. SOT parts

come in tape and reel only and must be ordered in 2500-piece

increments. See Device Marking Codes for a complete parts list,

including SOT top marks and standard threshold versions. See

Selector Guide for a listing of device features.

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

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

-Denotes

a package containing lead(Pb).

= Tape and reel.

/V Denotes an automotive qualified part.

Typical Operating Circuit appears at end of data sheet.

________________________________________________________________

Maxim Integrated Products

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.

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