EEWORLDEEWORLDEEWORLD

Part Number

Search

DS1239S-5

Description
Supervisory Circuits
CategoryPower/power management    The power supply circuit   
File Size55KB,4 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric View All

DS1239S-5 Online Shopping

Suppliers Part Number Price MOQ In stock  
DS1239S-5 - - View Buy Now

DS1239S-5 Overview

Supervisory Circuits

DS1239S-5 Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeSOIC
package instruction0.300 INCH, SOIC-16
Contacts16
Reach Compliance Codenot_compliant
ECCN codeEAR99
Other featuresPUSHBUTTON RESET OPTION
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 codeR-PDSO-G16
JESD-609 codee0
length10.3 mm
Number of channels1
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP16,.4
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)245
power supply5 V
Certification statusNot Qualified
Maximum seat height2.65 mm
Maximum supply current (Isup)4 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)4.5 V
Nominal supply voltage (Vsup)5 V
surface mountYES
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.5 mm
Base Number Matches1
DS1239
MicroManager Chip
www.dalsemi.com
FEATURES
Provides necessary control for start up and
shutdown of power supply from keyboard
Holds microprocessor in check during power
transients
Halts and restarts an out-of-control
microprocessor
Monitors push button for external override
Warns microprocessor of an impending power
failure
Converts CMOS SRAM into nonvolatile
memory
Unconditionally write-protects memory when
power supply is out of tolerance
Consumes less than 100 nA of battery current
Controls external power switch for high
current applications
Accurate 10% power supply monitoring
Optional 5% power supply monitoring
designated DS1239-5
Provides orderly shutdown in nonvolatile
microprocessor applications
Supplies necessary control for low-power
“stop mode” in battery operate hand-held
applications
Standard 16-pin DIP or space-saving 16-pin
SOIC
Optional industrial temperature range -40°C
to +85°C
PIN ASSIGNMENT
VBAT
VCCO
VCC
GND
PF
PF
WC/SC
PSI
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PSO
RST
PBRST
CEI
VBAT
VCCO
CEO
VCC
GND
ST
PF
NMI
PF
WC/SC
IN
PSI
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PSO
RST
PBRST
CEI
CEO
ST
NMI
IN
DS1239 16-Pin DIP (300-mil)
See Mech. Drawings Section
DS1239 16-Pin SOIC (300-mil)
See Mech. Drawings Section
PIN DESCRIPTION
V
BAT
V
CCO
V
CC
GND
PF
PF
WC/
SC
PSI
IN
NMI
ST
CEO
CEI
PBRST
RST
PSO
- +3 Volt Battery Input
- Switched SRAM Supply Output
- +5 Volt Power Supply Input
- Ground
- Power Fail (Active High)
- Power Fail (Active Low)
- Wake-Up Control (Sleep)
- Power Supply Control Input
- Early Warning Input
- Non-Maskable Interrupt
- Strobe Input
- Chip Enable Output
- Chip Enable Input
- Pushbutton Reset Input
- Reset Output (Active low)
- Power Supply Control Outputs
DESCRIPTION
The DS1239 MicroManager provides all the necessary functions for power supply control and
monitoring, reset control, and memory backup in microprocessor-based systems. Using the DS1239, an
AC power switch is no longer required for microprocessor-based systems. A keyboard control system for
power supply start up and shutdown is provided through the use of the Power Supply Control Input and
Output. In other respects, the DS1239 is functionally identical to a DS1236 in the NMOS mode. For a
complete description of the other DS1239 features, refer to the DS1236 data sheet. Pin-out of the
1 of 4
111899
C8051F310 In-System Flash Programming
C8051F310 In-System Flash Programming When using a single-chip microcomputer, some data needs to be set so that it will not be lost when the power is off. Generally, the first thing that comes to mind...
David_Lee MCU
【Book Collection】The Art of 8051 Microcontroller Software Design
[b]Directory:[/b] Chapter 1 Sound Basics 1-1 Beep without independent variables 1-2 Beep independent variable X1 1-3 Beep independent variable X2 1-4 Beep independent variable X3 1-5 Beep timer 1-6 Mu...
wzt 51mcu
Another entry from the 2008 Intel Cup Embedded Invitational Competition
[i=s]This post was last edited by paulhyde on 2014-9-15 09:01[/i] 2008 Intel Cup Undergraduate Electronic Design Competition - Embedded System Special Invitational Competition, first prize works: Part...
牛默默 Robotics Development
Mining Core Coin Experience Hehe
...
zhangkai0215 Talking
Dear seniors, what should I do if IAR 1.26A does not support 449?
Is it possible to copy all the files in the C:\PROGRAM FILES\IAR SYSTEMS\EW23\430\BIN\S430 directory of other versions?...
yin_327 Microcontroller MCU
Could you please tell me what MOS tube the silk screen printed P3SBK 4 is?
Excuse me, the silk screen is P3SBK 4, the package is SOT23-3, what kind of MOS tube is it?...
轩辕默殇 Analog electronics

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 574  1542  1640  1629  2863  12  32  34  33  58 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号