MAX6833(2002) Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MAX6833
(Rev.:2002)

Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits

Maxim Integrated 

Ultra-Low-Voltage SC70 Voltage Detectors

and µP Reset Circuits

Using The MAX6834/MAX6837/MAX6840

Open-Drain RESET Output

with Multiple Supplies

Generally, the pullup connected to the MAX6834/

MAX6837/MAX6840 will connect to the supply voltage

that is being monitored at the IC’s VCC pin. However,

some systems may use the open-drain output to level-

shift from the monitored supply to reset circuitry pow-

ered by some other supply (Figure 5). Note that as the

MAX6834/MAX6837/MAX6840’s VCC decreases, so

does the IC’s ability to sink current at RESET. Also, with

any pullup, RESET will be pulled high as VCC declines

toward 0. The voltage where this occurs depends on

the pullup resistor value and the voltage to which it is

connected.

+1.2V

+5.0V

VCC

MAX6834

MAX6837

MAX6840 RESET

RPULLUP

VCC

5V SYSTEM

RESET

INPUT

GND

GND

Figure 5. Using The MAX6834/MAX6837/MAX6840 Open-Drain

RESET Output with Multiple Supplies

Chip Information

TRANSISTOR COUNT: 681

PROCESS: BiCMOS

Selector Guide

Table 1. Threshold Suffix Guide

SUFFIX

W

V

I

H

G

F

RESET THRESHOLD (V)

1.665

1.575

1.388

1.313

1.110

1.050

Table 2. Active Timeout Period Guide

SUFFIX

D0

D1

D2

D3

D4

TYPICAL RESET ACTIVE

TIMEOUT PERIOD (ms)

0.07

1.5

30

210

1680

Table 3. Standard Versions

DEVICE

TOP MARK

MAX6832VXRD0

AIQ

MAX6832VXRD3

AIR

MAX6832HXRD0

AIS

MAX6832HXRD3

AIT

MAX6832FXRD0

AIU

MAX6832FXRD3

AIV

MAX6833VXRD0

AHJ

MAX6833VXRD3

AIW

MAX6833HXRD0

AIX

MAX6833HXRD3

AIY

MAX6833FXRD0

AIZ

MAX6833FXRD3

AJA

MAX6834VXRD0

AJB

MAX6834VXRD3

AJC

MAX6834HXRD0

AJD

MAX6834HXRD3

AJE

MAX6834FXRD0

AJF

MAX6834FXRD3

AJG

MAX6835VXSD0

AEX

8 _______________________________________________________________________________________

Share Link: