EEWORLDEEWORLDEEWORLD

Part Number

Search

DS2745_09

Description
Low-Cost I2C Battery Monitor
File Size180KB,15 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Compare View All

DS2745_09 Overview

Low-Cost I2C Battery Monitor

19-4631; Rev 5/09
DS2745
Low-Cost I
2
C Battery Monitor
www.maxim-ic.com
FEATURES
16-Bit Bidirectional Current Measurement
1.56V LSB, ±51.2mV Dynamic Range
104A LSB, ±3.4A Dynamic Range (RSNS =
15m)
Current Accumulation Register Resolution
6.25Vhr LSB, ±204.8mVh Range
0.417mAhr LSB, ±13.65Ah Range
(R
SNS
= 15m)
11-Bit Voltage Measurement
4.88mV LSB, 0V to 4.5V Input Range
11-Bit Temperature Measurement
0.125ºC Resolution, -20ºC to +70ºC
Industry Standard I
2
C Interface
Low Power Consumption:
Active Current:
70A typical, 100A max
Sleep Current:
1A typical, 3A max
PIN CONFIGURATION
SCL
SDA
PIO
SNS
1
2
3
4
8
7
6
5
VDD
VIN
CTG
VSS
MAX
See Table 1 for Ordering Information.
DESCRIPTION
The DS2745 provides current-flow, voltage, and
temperature measurement data to support battery-
capacity monitoring in cost-sensitive applications. The
DS2745 can be mounted on either the host side or
pack side of the application. Current measurement
and coulomb counting is accomplished by monitoring
the voltage drop across an external sense resistor,
voltage measurement is accomplished through a
separate voltage-sense input, and temperature
measurement takes place on-chip. A standard I
2
C
interface with software programmable address gives
the controlling microprocessor access to all data and
status registers inside the DS2745. A low-power sleep
mode state conserves energy when the cell pack is in
storage.
BLOCK DIAGRAM
APPLICATIONS
Cellular
GPS
PDAs
Handheld Products
Table 1. ORDERING INFORMATION
PART
DS2745U+
DS2745U+T&R
MARKING
2745
2745
PIN-PACKAGE
MAX
package
DS2745U+ in Tape-and-Reel
+Denotes a lead(Pb)-free/RoHS-compliant package.
1 of 15

DS2745_09 Related Products

DS2745_09 DS2745U+TR DS2745U+T&R
Description Low-Cost I2C Battery Monitor Low-Cost I2C Battery Monitor battery management i2c battery monitor fuel gauge
Summary of embedded system foundation, knowledge and interface technology
: [b][b][color=rgb(34, 34, 34)][font=Helvetica][size=18pt][font=宋体]Fundamentals of Embedded Systems[/font][/size][/font][/color][/b][b][color=rgb(34, 34, 34)][/color][/b][/b][b][b][color=rgb(34, 34, 3...
jingcheng 51mcu
Help: ucos serial port data garbled
The serial port data sending function is as follows:void SendStr(u8 *buf,int len){if(lenfor(int i=0;i{USART_SendData(USART1, (u8) *buf++);while(RESET==USART_GetFlagStatus(USART2,USART_FLAG_TXE));}}In ...
stillingermany stm32/stm8
This time I seem to have bought real C0G capacitors
[i=s]This post was last edited by littleshrimp on 2017-2-13 16:34[/i] I bought a few C0G capacitors from a Taobao store years ago, 0.2 yuan each. When I received them, I saw that the color was wrong. ...
littleshrimp Integrated technical exchanges
How IGBTs can leverage electric vehicle inverters
[p=24, null, left][color=rgb(51, 51, 51)][font=微软雅黑, Tahoma, "][size=2] Electric vehicle inverters are used to control the main motor of the vehicle to provide power for the vehicle. The IGBT power mo...
fish001 Analogue and Mixed Signal
[Repost] Nine things to note when testing PCB boards
[align=left][color=rgb(25, 25, 25)][font="]PCB board inspection is the time to pay attention to some details in order to better ensure product quality. When inspecting PCB boards, we should pay attent...
皇华Ameya360 Power technology

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2639  1367  2400  1543  1205  54  28  49  32  25 
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