EEWORLDEEWORLDEEWORLD

Part Number

Search

MAX6439UTKRZD3-T

Description
Battery Management Low-Power,Single/Dual-Level Battery Monitors w Hysteresis u0026 Inegrated Microprocessor Reset
CategoryPower/power management    The power supply circuit   
File Size251KB,14 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric View All

MAX6439UTKRZD3-T Online Shopping

Suppliers Part Number Price MOQ In stock  
MAX6439UTKRZD3-T - - View Buy Now

MAX6439UTKRZD3-T Overview

Battery Management Low-Power,Single/Dual-Level Battery Monitors w Hysteresis u0026 Inegrated Microprocessor Reset

MAX6439UTKRZD3-T Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeSOT-23
package instructionSOT-23, 6 PIN
Contacts6
Reach Compliance Codenot_compliant
ECCN codeEAR99
Other features2.313 RESET THESHOLD VOLTAGE; BATTERY HTH AND LTH ARE 2.4V AND 1.6V
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G6
JESD-609 codee0
length2.9 mm
Number of channels2
Number of functions1
Number of terminals6
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Encapsulate equivalent codeTSOP6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)245
power supply1.2/5 V
Certification statusNot Qualified
Maximum seat height1.45 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)1 V
surface mountYES
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceTIN LEAD
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width1.625 mm
19-2535; Rev 1; 12/05
Low-Power, Single-/Dual-Level Battery Monitors
with Hysteresis and Integrated µP Reset
General Description
The MAX6439–MAX6442 are a family of ultra-low-power
battery monitors with integrated microprocessor (µP)
supervisors. The battery monitors are offered with sin-
gle or dual low-battery output options that can be used
to signal when the battery is OK (enabling full system
operation), when the battery is low (for low-power sys-
tem operation), and when the battery is dead (to dis-
able system operation). These devices also have an
independent µP supervisor that monitors V
CC
and pro-
vides an active-low reset output. A manual reset func-
tion is available to reset the µP with a push-button. No
external components are required.
The MAX6439–MAX6442 are offered with several facto-
ry-trimmed low-battery threshold combinations ideal for
single-cell lithium-ion (Li+) or multicell alkaline/NiCd/
NiMH applications. When the battery voltage drops
below each specified low threshold, the low-battery out-
puts are asserted to alert the system. When the voltage
rises above the specified high thresholds, the outputs
are deasserted after a 150ms minimum timeout period,
ensuring the voltages have stabilized before power cir-
cuitry is activated or providing microprocessor reset tim-
ing. The low and high thresholds provide hysteresis in
battery-operated systems to eliminate output chattering.
The MAX6439/MAX6440 offer factory-trimmed battery
monitors with a single output. The MAX6441/MAX6442
offer factory-trimmed battery monitors with dual outputs.
All battery monitors have open-drain low-battery outputs.
The MAX6439–MAX6442 monitor system voltages
(V
CC
) from 1.8V to 3.3V with seven fixed reset threshold
options. Each device is offered with two minimum reset
timeout periods of 150ms or 1200ms. The MAX6439/
MAX6441 are offered with an open-drain
RESET
output
and the MAX6440/MAX6442 are offered with a push-
pull
RESET
output.
The MAX6439–MAX6442 are offered in a SOT23 pack-
age and are fully specified over a -40°C to +85°C temp-
erature range.
Features
Factory-Trimmed V
BATT
Threshold Options for
Monitoring Single-Cell Li+ or Multicell
Alkaline/NiCd/NiMH Applications
Immune to Short Battery Voltage Transients
Low Current (2.5µA typ at 3.6V)
Single and Dual Low-Battery Output Options
150ms Minimum
LBO
Timeout Period
Independent µP Reset with Manual Reset
Factory-Set Reset Thresholds for Monitoring V
CC
from 1.8V to 3.3V
Available with 150ms (min) and 1.2s (min) V
CC
Reset Timeout Period Options
-40°C to +85°C Operating Temperature Range
Small 6- and 8-Pin SOT23 Packages
No External Components
MAX6439–MAX6442
Ordering Information
PART
MAX6439UT_
_ _D_-T
MAX6440UT_
_ _D_-T
MAX6441KA_
_ _D_-T
MAX6442KA_
_ _D_-T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
6 SOT23-6
6 SOT23-6
8 SOT23-8
8 SOT23-8
Note:
The first two “_ _” are placeholders for the battery moni-
tor voltage levels. Desired threshold levels are set by the part
number suffix found in Tables 1 and 2. The third “_” is the V
CC
reset threshold level suffix found in Table 3. The “_” after the D
is a placeholder for the reset timeout period suffix found in
Table 4. All devices are available in tape-and-reel only. There
is a 2500-piece minimum order increment for standard ver-
sions. Sample stock is typically held on standard versions only.
Nonstandard versions require a minimum order increment of
10,000 pieces. Contact factory for availability.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Applications
Battery-Powered Systems (Single-Cell Li+ or
Two-/Three-Cell NiMH, NiCd, Alkaline)
Cell Phones/Cordless Phones
Portable Medical Devices
Electronic Toys
Pagers
PDAs
MP3 Players
LBO
3
Pin Configurations
TOP VIEW
V
BATT
1
6
V
CC
MR
2
MAX6439
MAX6440
5
GND
4
RESET
SOT23-6
Pin Configurations continued at end of data sheet.
1
________________________________________________________________
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.
CC2540 Op Amp
If POWER_SAVING is not enabled, the operational amplifier works normally and can sample the correct value. However, if POWER_SAVING is enabled, as described in the user manual: When power mode 2/3 is ...
hzh808282 Wireless Connectivity
Use CCS for online debugging. Once the motor is powered on, CCS is disconnected.
Use CCS to debug online. Once the motor is powered on, CCS disconnects and displays as shown in the attached USB display: This device can improve performance. If this USB device is connected to a high...
bandaisme DSP and ARM Processors
I wish you all a happy Children's Day! Take a look at the principle of a toy while your child is in kindergarten
Yesterday, I went to the supermarket with my child and chose this 9.9 toy. It glows when it rotates faster. I have always been curious about the principle behind this. Is it the current generated by c...
eric_wang Making friends through disassembly
TIP35/36CW VS TIP35/36C
The former is a pair of my JBL subwoofers. The CW one is broken, so I just changed a pair. But TB sent me the latter C, which is missing the W. Now they ask me if the latter can replace the former?...
yek498 Analog electronics
Tracking car design
I. Cause, Goal and Vehicle Design I. Overview This project mainly makes a low-cost tracking car for learning embedded applications (single-chip microcomputers) by self-production. There are two basic ...
护花使者 MCU
dsp28035 i2c read and write eeprom query method program help
TI's official I2C program uses interrupt mode, and its actual operation has various problems. Is there any I2C program that can be used to read and write AT24C02?...
yuxuanwlfei DSP and ARM Processors

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2138  2034  320  1422  2477  44  41  7  29  50 
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