EEWORLDEEWORLDEEWORLD

Part Number

Search

MAX6442KAMTVD3-T

Description
Battery Management Low-Power,Single/Dual-Level Battery Monitors w Hysteresis & Inegrated Microprocessor Reset
Categorysemiconductor    Power management   
File Size245KB,14 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric View All

MAX6442KAMTVD3-T Online Shopping

Suppliers Part Number Price MOQ In stock  
MAX6442KAMTVD3-T - - View Buy Now

MAX6442KAMTVD3-T Overview

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

MAX6442KAMTVD3-T Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerMaxim
Product CategoryBattery Management
Operating Supply Voltage1 V to 5.5 V
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 85 C
Package / CaseSOT-23-8
PackagingReel
Height1.1 mm
Length2.9 mm
TypeVoltage Monitor
Width1.63 mm
Mounting StyleSMD/SMT
Unit Weight0.001411 oz
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.
Does anyone have any papers on PCB design?
[i=s] This post was last edited by paulhyde on 2014-9-15 09:45 [/i] I would like to ask if anyone has any papers on PCB design. I am currently working on a paper but don't know what to do....
xiaxiping Electronics Design Contest
Please help. The front control panel of the set-top box starts normally. When I touch it, there is no data signal, and the digital tube of the front control panel does not light up.
Please help. The front control panel of the set-top box starts up normally, and the data signal is normal. When I touch it, the data signal is gone. The digital tube of the front control panel is not ...
sk2峰 Integrated technical exchanges
Anti-static sign
Anti-static signs, all are PCB files, can be used directly on PCB...
qin552011373 ADI Reference Circuit
Problems with signals and variables in vhdl parity check circuit
In the following program, I personally feel that tmp should be defined as a variable, not a signal, because variable assignment has no delay, while signal assignment has delay. This causes tmp <= tmp ...
zk12081984 Embedded System
VHDL, I have a question but I don't know how to start, can an expert give me some tips
VHDL, I have a question and I don't know how to start, experts can give me some tips, cycloneII fpga, I am fidgeting :titter:...
alec405 Embedded System
Receive an AVR learning board with video
Receive an AVR learning board with video...
jak110 Microchip MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1595  2925  2116  827  361  33  59  43  17  8 
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