參數(shù)資料
型號(hào)： DS2438Z
英文描述： Smart Battery Monitor
中文描述： 智能電池監(jiān)視器
文件頁(yè)數(shù)： 1/29頁(yè)
文件大小： 351K
代理商： DS2438Z
1 of 29
052400
FEATURES
Unique 1-Wire
interface requires only one
port pin for communication
Provides unique 64-bit serial number to
battery packs
Eliminates thermistors by sensing battery
temperature on-chip
On-board A/D converter allows monitoring
of battery voltage for end-of-charge and end-
of-discharge determination
On-board integrated current accumulator
facilitates fuel gauging
Elapsed time meter in binary format
40-byte nonvolatile user memory available
for storage of battery-specific data
Operating range -40oC to +85oC
Applications include portable computers,
portable/cellular phones, consumer
electronics, and handheld instrumentation
PIN ASSIGNMENT
PIN DESCRIPTION
DQ
-
VAD
-
V
SENS+
-
V
SENS-
-
VDD
-
GND
-
NC
-
Data In/Out
General A/D input
Battery current monitor input (+)
Battery current monitor input (-)
Power Supply (2.4V to 10.0V)
Ground
No connect
DESCRIPTION
The DS2438 Smart Battery Monitor provides several functions that are desirable to carry in a battery
pack: a means of tagging a battery pack with a unique serial number, a direct-to-digital temperature
sensor which eliminates the need for thermistors in the battery pack, an A/D converter which measures
the battery voltage and current, an integrated current accumulator which keeps a running total of all
current going into and out of the battery, an elapsed time meter, and 40 bytes of nonvolatile EEPROM
memory for storage of important parameters such as battery chemistry, battery capacity, charging
methodology and assembly date. Information is sent to/from the DS2438 over a 1-Wire interface, so that
only one wire (and ground) needs to be connected from a central microprocessor to a DS2438. This
means that battery packs need only have three output connectors: battery power, ground, and the 1-Wire
interface.
Because each DS2438 contains a unique silicon serial number, multiple DS2438s can exist on the same
1-Wire bus. This allows multiple battery packs to be charged or used in the system simultaneously.
Applications for the smart battery monitor include portable computers, portable/cellular telephones, and
handheld instrumentation battery packs in which it is critical to monitor real-time battery performance.
Used in conjunction with a microcontroller in the host system, the DS2438 provides a complete smart
battery pack solution that is fully chemistry-independent. The customization for a particular battery
chemistry and capacity is realized in the code programmed into the microcontroller and DS2438
EEPROM, and only a software revision is necessary should a designer wish to change battery pack
chemistry.
DS2438
Smart Battery Monitor
PRELIMINARY
www.dalsemi.com
GND
V
SENS+
V
SENS-
V
AD
DQ
NC
NC
V
DD
1
2
3
4
8
7
6
5
DS2438Z
8-Pin SOIC (150-mil)
相關(guān)PDF資料
PDF描述
DS2442 Battery Management
DS2501 1A VERY LOW DROPOUT VOLTAGE REGULATORS
DS2502 1 kbit Add-Only Memory
DS2502P-E48 48-Bit Node Address Chip
DS2502-UN UniqueWare Add-Only Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2438Z/T&R 制造商:Maxim Integrated Products 功能描述:SMART BATTERY MONITOR 8-SOIC T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MONITOR SMART BATTERY 8-SOIC
DS2438Z/T&R 功能描述:IC MONITOR SMART BATTERY 8-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱(chēng):MCP73831T-2ACI/OTCT
DS2438Z+ 功能描述:電池管理 Smart Battery Monitor RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
DS2438Z+T&R 制造商:Maxim Integrated Products 功能描述:MONITOR MULTI-CHEM 8SOIC N - Tape and Reel 制造商:Maxim Integrated Products 功能描述:BATT MONITOR 8-SOIC T&R PBFREE 制造商:Maxim Integrated Products 功能描述:IC MONITOR SMART BATTERY 8-SOIC 制造商:Maxim Integrated Products 功能描述:Battery Management Smart Battery Monitor
DS2438Z+T&R 功能描述:電池管理 Smart Battery Monitor RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠(chǎng)商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*