MAX809(2010) View Datasheet(PDF) - ON Semiconductor

Part Name

Description

Manufacturer

MAX809
(Rev.:2010)

Very Low Supply Current 3-Pin Microprocessor Reset Monitors

ON Semiconductor 

MAX809 Series,

MAX810 Series

Very Low Supply Current

3-Pin Microprocessor

Reset Monitors

The MAX809 and MAX810 are cost−effective system supervisor

circuits designed to monitor VCC in digital systems and provide a reset

signal to the host processor when necessary. No external components

are required.

The reset output is driven active within 10 msec of VCC falling

through the reset voltage threshold. Reset is maintained active for a

timeout period which is trimmed by the factory after VCC rises above

the reset threshold. The MAX810 has an active−high RESET output

while the MAX809 has an active−low RESET output. Both devices

are available in SOT−23 and SC−70 packages.

The MAX809/810 are optimized to reject fast transient glitches on

the VCC line. Low supply current of 0.5 mA (VCC = 3.2 V) makes these

devices suitable for battery powered applications.

Features

• Precision VCC Monitor for 1.5 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V

Supplies

• Precision Monitoring Voltages from 1.2 V to 4.9 V Available

in 100 mV Steps

• Four Guaranteed Minimum Power−On Reset Pulse Width Available

(1 ms, 20 ms, 100 ms, and 140 ms)

• RESET Output Guaranteed to VCC = 1.0 V.

• Low Supply Current

• Compatible with Hot Plug Applications

• VCC Transient Immunity

• No External Components

• Wide Operating Temperature: −40°C to 105°C

• Pb−Free Packages are Available

Typical Applications

• Computers

• Embedded Systems

• Battery Powered Equipment

• Critical Microprocessor Power Supply Monitoring

VCC

VCC

MAX809/810

RESET

RESET

VCC

PROCESSOR

RESET

INPUT

GND

GND

http://onsemi.com

3

1

2

SOT−23

(TO−236)

CASE 318

MARKING

DIAGRAM

3

xxx MG

G

1

2

SC−70

(SOT−323)

CASE 419

xx MG

G

1

xxx = Specific Device Code

M

= Date Code

G

= Pb−Free Package

(Note: Microdot may be in either location)

PIN CONFIGURATION

GND 1

3 VCC

RESET 2

RESET

SOT−23/SC−70

(Top View)

NOTE: RESET is for MAX809

RESET is for MAX810

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 10 of this data sheet.

DEVICE MARKING INFORMATION

See general marking information in the device marking

section on page 10 of this data sheet.

Figure 1. Typical Application Diagram

© Semiconductor Components Industries, LLC, 2010

1

April, 2010 − Rev. 20

Publication Order Number:

MAX809S/D

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