MAX6392KA29+T Maxim Integrated Products, MAX6392KA29+T Datasheet

MAX6392KA29+T

Manufacturer Part Number

MAX6392KA29+T

Description

IC SUPERVISOR MPU DL SOT23-8

Manufacturer

Maxim Integrated Products

Type

Multi-Voltage Supervisorr

Datasheet

1.MAX6391KA29T.pdf (9 pages)

Specifications of MAX6392KA29+T

Number Of Voltages Monitored

Output

Open Drain, Push-Pull

Reset

Active Low

Reset Timeout

140 ms/Adjustable Minimum

Voltage - Threshold

2.93V, Adj

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

SOT-23-8

Monitored Voltage

1.2 V to 5.5 V

Undervoltage Threshold

2.85 V, 0.61 V

Overvoltage Threshold

0.64 V, 3 V

Output Type

Active Low, Open Drain, Push-Pull

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)

15 uA

Maximum Power Dissipation

421 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

MAX6392KA29+T
MAX6392KA29+TTR

Current page: 1 of 9
Download datasheet (212Kb)

The MAX6391/MAX6392 microprocessor (µP) supervisory

circuits provide sequenced logic reset outputs for multi-

component or dual-voltage systems. Each device can

monitor two supply voltages and time-sequence two reset

outputs to control the order in which system components

are turned on and off. The MAX6391/MAX6392 increase

system reliability and reduce circuit complexity and cost

compared to separate ICs or discrete components.

The MAX6391/MAX6392 monitor V

reset supply. Both RESET1 and RESET2 are asserted

whenever V

reset threshold voltage. RESET1 remains asserted as

long as V

140ms (min) after V

RESET IN2 is monitored as the secondary reset supply

and is adjustable with an external resistive-divider net-

work. RESET2 is asserted whenever either V

RESET IN2 is below the selected thresholds. RESET2

remains asserted 140ms (min) or a capacitor-

adjustable time period after V

exceed their thresholds. RESET2 is always deasserted

after RESET1 during system power-up and is always

asserted before RESET1 during power-down.

The MAX6391 includes two internal pullup resistors for

RESET1 and RESET2 (the open-drain outputs can be

externally connected to the desired pullup voltages).

The MAX6392 includes an active-low manual reset

input (MR) that asserts both RESET1 (push-pull) and

RESET2 (open drain).

The MAX6391/MAX6392 are available in small 8-pin

SOT23 packages and are specified over the -40°C to

+85°C extended temperature range.

19-2210; Rev 2; 12/05

Typical Operating Circuit appears at end of data sheet.

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.

Computers

Controllers

Critical µP Power Monitoring

Set-Top Boxes

Printers

Servers/Workstations

Industrial Equipment

Multivoltage Monitoring

is below the threshold and deasserts

drops below the selected factory-fixed

________________________________________________________________ Maxim Integrated Products

exceeds the thresholds.

General Description

Dual-Voltage µP Supervisory Circuits

Applications

and RESET IN2

as the master

with Sequenced Reset Outputs

♦ Preset V CC Reset Threshold Voltages from 1.58V

♦ Customer-Adjustable RESET IN2 to Monitor

♦ Fixed (140ms min) R R E E S S E E T T 1 1 Timeout

♦ Fixed (140ms min) or Customer-Adjustable

♦ Guaranteed Reset Valid to V

♦ Active-Low Open-Drain Outputs or Push-

♦ Internal Open-Drain Pullup Resistors (for external

♦ Manual Reset Input (MAX6392 only)

♦ Immune to Short Negative V

♦ 15µA Typical Supply Current

♦ Few External Components

♦ Small 8-Pin SOT23 Package

*Insert the desired suffix (see Selector Guide) into the blanks to

complete the part number. The MAX6391/MAX6392 require a

2.5k minimum order increment and are available in tape-and-

reel only. Samples are typically available for standard versions

(see Selector Guide for standard versions). Contact factory for

availability.

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

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

Pin Configurations continued at end of data sheet.

MAX6391KA_ _-T

MAX6392KA_ _-T

to 4.63V (master supply)

Voltages Down to 625mV (secondary supply)

R R E E S S E E T T 2 2 Timeout Period

Pull/Open-Drain Combination

TOP VIEW

PART*

voltage connections)

RESET IN2

CSRT

GND

TEMP RANGE

-40°C to +85°C

Ordering Information

SOT23-8

MAX6391

Pin Configurations

Transients

= 1V

PIN-PACKAGE

SOT23-8

RESET1

RESET2

Features

Related parts for MAX6392KA29+T

MAX6392KA29+T Summary of contents

Page 1

... Servers/Workstations Industrial Equipment Multivoltage Monitoring Typical Operating Circuit appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. with Sequenced Reset Outputs ♦ Preset V CC Reset Threshold Voltages from 1.58V to 4.63V (master supply) ♦ ...

Page 2

Dual-Voltage µP Supervisory Circuits with Sequenced Reset Outputs ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6.0V CC RESET1 (MAX6392), RESET IN2, CSRT GND ..............................................-0. RESET1 (MAX6391), RESET2, R1 GND......-0.3V to +6.0V , GND, ...

Page 3

Dual-Voltage µP Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued 1.2V to 5.5V MIN MAX PARAMETER SYMBOL RESET1 Timeout Period RESET2 Timeout Period (Note 3) RESET_ Output Voltage Low Open-Drain RESET Output Leakage Current ...

Page 4

Dual-Voltage µP Supervisory Circuits with Sequenced Reset Outputs (V = +5V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE -40 - TEMPERATURE (°C) RESET2 TO RESET1 DELAY ...

Page 5

Dual-Voltage µP Supervisory Circuits PIN NAME MAX6391 MAX6392 1 1 RESET IN2 CSRT 4 4 GND RESET2 RESET1 — — 8 Detailed Description Each ...

Page 6

Dual-Voltage µP Supervisory Circuits with Sequenced Reset Outputs V CC RESET IN2 Figure 1. Functional Diagram V TH1 RP1 RESET1 RESET IN2 RESET2 Figure 2. Timing Diagram 6 _______________________________________________________________________________________ MR (MAX6392 ONLY) MR (MAX6392 MR DETECT ONLY) ...

Page 7

Dual-Voltage µP Supervisory Circuits Selector Guide NOMINAL PART NUMBER THRESHOLD (V) MAX6391KA46 4.63 MAX6391KA44 4.38 MAX6391KA31 3.08 MAX6391KA29 2.93 MAX6391KA26 2.63 MAX6391KA23 2.32 MAX6391KA22 2.19 MAX6391KA17 1.67 MAX6391KA16 1.58 MAX6392KA46 4.63 MAX6392KA44 4.38 MAX6392KA31 3.08 MAX6392KA29 2.93 MAX6392KA26 2.63 MAX6392KA23 ...

Page 8

Dual-Voltage µP Supervisory Circuits with Sequenced Reset Outputs C CSRT Pin Configurations (continued) TOP VIEW RESET IN2 MAX6392 CSRT 3 GND 4 SOT23-8 8 _______________________________________________________________________________________ MASTER PROCESSOR V RESET1 RESET CC MAX6392 GND ...

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 © 2005 Maxim Integrated Products with Sequenced Reset Outputs SEE DETAIL " ...

Related keywords

max639
max632
max6315
max6394
max6363
max6326
max6355
max6320
max6303
max6392
max6369
max6392ka29
MAX6392KA29+T datasheet
MAX6392KA29+T data sheet
MAX6392KA29+T pdf datasheet
MAX6392KA29+T component
MAX6392KA29+T part
MAX6392KA29+T distributor
MAX6392KA29+T RoHS
MAX6392KA29+T datasheet download