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| 型号： | BQ26221PWG4 |
| 厂商： | Texas Instruments |
| 文件页数： | 1/23页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY MONITOR HP 8-TSSOP |
| 标准包装： | 100 |
| 功能： | 电池监控器 |
| 电池化学： | 多化学 |
| 电源电压： | 2.8 V ~ 4.5 V |
| 工作温度： | -20°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 管件 |
bq26221
SLUS607 ? MAY 2004
HIGH PERFORMANCE BATTERY MONITOR IC
WITH COULOMB COUNTER, VOLTAGE AND, TEMPERATURE MEASUREMENT
FEATURES
D Communicates Directly With the Integrated
HDQ Engine in TI OMAP ? Processor
D Multifunction Monitoring Integrated Circuit
Designed to Work With an Intelligent Host
Controller :
? Provides State of Charge Information for
Rechargeable Batteries
? Provides Accurate Battery Voltage and
Temperature Measurement
DESCRIPTION
The bq26221 is an advanced battery monitoring
device designed to accurately measure the
charge and discharge currents in rechargeable
battery packs. Intended for pack integration, the
bq26221 contains all the necessary functions to
form the basis of a comprehensive battery
capacity management system in portable
applications such as cellular phones, PDAs, or
other portable products.
D
D
D
D
D
D
D
D
D
D
High Accuracy Coulometric Charge and
Discharge Current Integration With
Automatic Offset Compensation
11-Bit Analog-to-Digital Converter Reports
Battery Voltage With Gain and Offset
Correction
Differential Current Sense
32 Bytes of General Purpose RAM
96 Bytes of Flash (Including 32 Bytes of
Shadow Flash)
8 Bytes of ID ROM
Internal Temperature Sensor Eliminates the
Need for an External Thermistor
Programmable Digital Input/Output Port
High-Accuracy Internal Timebase Eliminates
External Crystal Oscillator
Low Power Consumption:
? Operating : 30 μ A
? Sleep: 1 μ A
? Hibernate: 600 nA
The bq26221 works with the host controller in the
portable system to implement the battery
management system. The host controller is
responsible for interpreting the bq26221 data and
communicating meaningful battery data to the
end-user or power management system.
This device provides 64 bytes of general-purpose
flash memory, 8 bytes of ID ROM and 32 bytes of
flash-backed RAM for data storage. The
nonvolatile memory can maintain formatted
battery monitor information, identification codes,
warranty information, or other critical battery
parameters during periods when the battery is
temporarily shorted or deeply discharged.
PW PACKAGE
(TOP VIEW)
D
D
Single-Wire HDQ Serial Interface
Packaging: 8-LEAD TSSOP
RBI
VCC
VSS
HDQ
1
2
3
4
8
7
6
5
GPIO
SRP
SRN
BAT
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright ? 2004, Texas Instruments Incorporated
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BQ26221PWR | 功能描述:电池管理 FLASHBased Precision Multi-Chem Counter RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ26221PWRG4 | 功能描述:电池管理 Hi-Performance Batt Monitor IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ26230PW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| BQ26231 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW COST BATTERY COULOMB COUNTER FOR EMBEDDED PORTABLE APPLICATIONS |
| BQ26231EVM-001 | 功能描述:电源管理IC开发工具 BQ26231 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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