MAX6402BS27+T Maxim Integrated Products, MAX6402BS27+T Datasheet

MAX6402BS27+T

Manufacturer Part Number

MAX6402BS27+T

Description

IC SUPERVISOR MPU 4-UCSP

Manufacturer

Maxim Integrated Products

Type

Simple Reset/Power-On Resetr

Datasheet

1.MAX6401BS22T.pdf (9 pages)

Specifications of MAX6402BS27+T

Number Of Voltages Monitored

Output

Open Drain or Open Collector

Reset

Active Low

Reset Timeout

100 ms Minimum

Voltage - Threshold

2.7V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

4-UCSP®

Monitored Voltage

1.2 V to 5.5 V

Undervoltage Threshold

2.66 V

Overvoltage Threshold

2.741 V

Output Type

Active Low, Open Drain

Manual Reset

Resettable

Watchdog

No Watchdog

Battery Backup Switching

No Backup

Power-up Reset Delay (typ)

280 ms

Supply Voltage (max)

5.5 V

Supply Voltage (min)

1 V

Supply Current (typ)

1 uA

Maximum Power Dissipation

303 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

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The MAX6400–MAX6405 is a family of ultra-low power

microprocessor (µP) supervisory circuits used for moni-

toring battery, power-supply, and regulated system

voltages. Each device contains a precision bandgap

reference comparator and is trimmed to specified trip

threshold voltages. These devices provide excellent cir-

cuit reliability and low cost by eliminating external com-

ponents and adjustments when monitoring system

voltages from 2.5V to 5.0V. A manual reset input is also

included.

The MAX6400–MAX6405 assert a reset signal whenev-

er the V

old. These devices are differentiated by their output

logic configurations and preset threshold voltages. The

MAX6400/MAX6403 (push-pull) and the MAX6402/

MAX6405 (open-drain) have an active-low reset (RESET

is logic low when V

MAX6404 have an active-high push-pull output (RESET

is logic high when V

guaranteed to be in the correct output logic state for

fast transients on V

MAX6402 have voltage thresholds between 2.20V and

3.08V in approximately 100mV increments. The

MAX6403/MAX6404/MAX6405 have voltage thresholds

between 3.30V and 4.63V in approximately 100mV

increments.

Ultra-low supply current of 500nA (MAX6400/MAX6401/

MAX6402) makes these parts ideal for use in portable

equipment. These devices are available in 4-bump

chip-scale packages (UCSP™)

Portable/Battery-Powered Equipment

Cell Phones

PDAs

MP3 Players

Pagers

19-2043; Rev 1; 8/01

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX6400

MAX6401

MAX6402

MAX6403

MAX6404

MAX6405

PART

down to 1V. The reset circuit is designed to ignore

supply voltage falls below a preset thresh-

2.20 to 3.08

3.30 to 4.63

NOMINAL

µP Supervisory Circuits in 4-Bump (2

________________________________________________________________ Maxim Integrated Products

(V)

General Description

is below V

. The MAX6400/MAX6401/

is below V

Selector Guide

Open-Drain, Active-Low

Push-Pull, Active-High

Push-Pull, Active-Low

Applications

RESET/RESET

OUTPUT TYPE

). The MAX6401/

). All parts are

o Ultra-Small 4-Bump (2

o 70% Smaller Than SC70 Package

o Ultra-Low 500nA (typ) Supply Current

o Factory-Trimmed Reset Thresholds from 2.20V to

o ±2.5% Threshold Accuracy -40°C to +85°C

o Factory-Set 100ms (min) Reset Timeout Period

o Manual Reset Input

o Guaranteed Reset Valid to V

o Three Reset Output Logic Options: Active-Low

o Immune to Short V

o No External Components

____________________________Features

The MAX6400–MAX6405 are available in factory-set V

thresholds from 2.20V to 4.63V, in approximately 0.1V incre-

ments. Choose the desired reset-threshold suffix from Table 1

and insert it in the blank space following “S”. There are 21 stan-

dard versions with a required order increment of 2500 pieces.

Sample stock is generally held on the standard versions only

(Table 1). Required order increment is 10,000 pieces for non-

standard versions (Table 2). Contact factory for availability. All

devices available in tape-and-reel only.

UCSP reliability is integrally linked to the user’s assembly

methods, circuit board material, and environment. Refer to the

UCSP Reliability Notice in the UCSP Reliability section of this

data sheet for more information.

Pin Configuration appears at end of data sheet.

UCSP is a trademark of Maxim Integrated Products, Inc.

MAX6400BS_ _-T

MAX6401BS_ _-T

MAX6402BS_ _-T

MAX6403BS_ _-T

MAX6404BS_ _-T

MAX6405BS_ _-T

(Package Pending Full Qualification—Expected

Completion Date 6/30/01. See UCSP Reliability

Section for More Details.)

(MAX6400/MAX6401/MAX6402)

4.63V in Approximately 100mV Increments

Push-Pull, Active-High Push-Pull, and Active-Low

Open-Drain.

PART

Chip-Scale Package

TEMP. RANGE

-40

Ordering Information

C to +85

Transients

2) Chip-Scale Package,

= 1.0V

PIN-PACKAGE

UCSP-4

reset

Related parts for MAX6402BS27+T

MAX6402BS27+T Summary of contents

Page 1

... Refer to the OUTPUT TYPE UCSP Reliability Notice in the UCSP Reliability section of this data sheet for more information. Pin Configuration appears at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. ✕ Chip-Scale Package, ✕ = 1.0V ...

Page 2

Supervisory Circuits in 4-Bump (2 Chip-Scale Package ABSOLUTE MAXIMUM RATINGS All voltages measured with respect to GND, unless otherwise noted. V ...........................................................................-0.3V to +6V CC RESET, RESET (push-pull) .........................-0. RESET (open-drain)..................................................-0.3V to +6V MR ..............................................................-0. ...

Page 3

Supervisory Circuits in 4-Bump (2 ELECTRICAL CHARACTERISTICS (continued 1.0V to 5.5V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL RESET Output Voltage Low (MAX6400/MAX6402/MAX6403/ MAX6405) RESET Output Voltage ...

Page 4

Supervisory Circuits in 4-Bump (2 Chip-Scale Package (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE 1.4 1 1.0 0 3.3V CC 0.6 0 1.2V CC 0.2 0 -40 ...

Page 5

Supervisory Circuits in 4-Bump (2 PIN MAX6400/MAX6402 MAX6401/MAX6404 MAX6403/MAX6405 — — Detailed Description A microprocessor’s (µP’s) reset input starts the µ known state. These µP supervisory circuits assert reset ...

Page 6

Supervisory Circuits in 4-Bump (2 Chip-Scale Package RESET MR Figure 1. Reset Timing Diagram MAX6402/ MAX6405 MR RESET GND Figure 2. Interfacing to µPs with Bidirectional Reset Pins 6 _______________________________________________________________________________________ V ...

Page 7

Supervisory Circuits in 4-Bump (2 Table 1. Factory Trimmed Reset Thresholds* PARTS SUFFIX 22* 23 MAX6400BS 26* MAX6401BS 27 MAX6402BS 28 29 MAX6403BS 39 MAX6404BS 40 MAX6405BS 41 42 ...

Page 8

Supervisory Circuits in 4-Bump (2 Chip-Scale Package Table 2. Device Marking Codes PARTS TOP MARK MAX6400BS31-T AAJ MAX6400BS30-T AAI MAX6400BS29-T AAH MAX6400BS28-T AAG MAX6400BS27-T AAF MAX6400BS26-T AAE MAX6400BS25-T AAD MAX6400BS24-T AAC MAX6400BS23-T AAB MAX6400BS22-T AAA PARTS TOP MARK ACT ...

Page 9

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ______________________9 © 2001 Maxim Integrated Products ...

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