MAX699CWE-T Maxim Integrated, MAX699CWE-T Datasheet

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MAX699CWE-T

Manufacturer Part Number
MAX699CWE-T
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
MAX698, MAX699r
Datasheet

Specifications of MAX699CWE-T

Number Of Voltages Monitored
1
Monitored Voltage
5 V
Output Type
Active High, Active Low, Open Drain, Push-Pull
Manual Reset
Not Resettable
Watchdog
Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
500 ms
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Package / Case
SOIC-16 Wide
Chip Enable Signals
No
Maximum Power Dissipation
600 mW
Minimum Operating Temperature
0 C
Power Fail Detection
No
Supply Current (typ)
5000 uA
Supply Voltage - Min
3 V
The MAX698/MAX699 monitor the +5V supply in micro-
processor (µP) and digital systems. They supply a
RESET pulse of at least 140ms duration on power-up,
power-down, and during low-voltage brownout condi-
tions. Circuit reliability is increased at reduced cost by
eliminating all external components and adjustments.
The MAX699 includes all features of the MAX698, but
also provides a watchdog input to monitor microproces-
sor activity. The RESET output goes low if the watchdog
input (WDI) is not toggled within 1 second. The watch-
dog feature can be disabled by leaving WDI open.
Both parts are supplied in 8-lead PDIP and 16-lead
0.3in wide small outline (SO) packages and are speci-
fied from 0°C to +70°C for C grade devices and -40°C
to +85°C for E devices. The SO versions, with more
pins than the 8-lead PDIP, have additional outputs not
available in DIP packages. These are RESET (without
inversion) and watchdog output (WDO).
19-2349; Rev 3; 12/05
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.
+5V
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical µP Power Monitoring
1
2
3
4
GND
GND
V
V
CC
CC
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
MAX698
General Description
RESET
GND
N.C.
N.C.
Applications
8
7
6
5
+5V
TO µP
RESET
INPUT
Low-Cost, Power-On Reset
and Watchdog Controllers
♦ Precision Voltage Monitor
♦ Power-OK/Reset Time Delay
♦ Watchdog Timer
♦ Minimum Component Count
*
ing. Specify lead free by adding the + symbol at the end of the
part number when ordering.
MAX698CPA
MAX698CWE
MAX698EPA
MAX698EWE
MAX699CPA
MAX699CWE
MAX699EPA
MAX699EWE
Devices are available in both leaded and lead-free packag-
PART*
* PIN LABELS IN ( ) ARE FOR MAX699 ONLY
TOP VIEW
GND
GND
GND
GND
V
V
V
V
N.C.
N.C.
N.C.
N.C.
CC
CC
CC
CC
1
2
3
4
1
2
3
4
5
6
7
8
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Ordering Information
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
MAX699*
MAX698
MAX699*
MAX698
Pin Configuration
DIP
SO
16
15
14
13
12
11
10
8
7
6
5
9
GND
N.C.
N.C. (WDO)*
N.C.
N.C.
N.C.
RESET
N.C. (WDI)*
RESET
RESET
N.C. (WDI)*
GND
PIN-PACKAGE
Features
16 Wide SO
16 Wide SO
16 Wide SO
16 Wide SO
8 PDIP
8 PDIP
8 PDIP
8 PDIP
1

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MAX699CWE-T Summary of contents

Page 1

... Power-OK/Reset Time Delay ♦ Watchdog Timer ♦ Minimum Component Count PART* MAX698CPA MAX698CWE MAX698EPA MAX698EWE MAX699CPA MAX699CWE MAX699EPA Applications MAX699EWE * Devices are available in both leaded and lead-free packag- ing. Specify lead free by adding the + symbol at the end of the part number when ordering. +5V ...

Page 2

Low-Cost, Power-On Reset and Watchdog Controllers ABSOLUTE MAXIMUM RATINGS V ........................................................................-0.3V to +6.0V CC Input Voltage (with respect to GND) WDI, WDO, RESET, RESET ..…………………………-0. Operating Temperature Range C Suffix………………………………………………0°C to +70°C E Suffix ......……………………………………….-40°C to +85°C Rate ...

Page 3

PIN SO PDIP 5–8, 10– WDI (MAX699 Only) WDO (MAX699 Only) 14 — — WDI Figure 1. Block Diagram _______________________________________________________________________________________ Low-Cost, ...

Page 4

... Maxim reserves the right to change the circuitry and specifications without notice at any time. 4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 4 4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products © ...

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