Datasheet > BQ2084DBT-V140G4

BQ2084DBT-V140G4

更新时间： 2024-10-28 19:20:35

品牌	Logo	应用领域
德州仪器 - TI		光电二极管
页数	文件大小	规格书
67页	1016K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO38, GREEN, PLASTIC, TSSOP-38

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BQ2084DBT-V140G4 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	TSSOP	包装说明：	TSSOP, TSSOP38,.25,20
针数：	38	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.83	可调阈值：	YES
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-PDSO-G38
长度：	9.7 mm	信道数量：	1
功能数量：	1	端子数量：	38
最高工作温度：	85 °C	最低工作温度：	-20 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP38,.25,20	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	3.3 V	认证状态：	Not Qualified
座面最大高度：	1.2 mm	子类别：	Power Management Circuits
最大供电电压 (Vsup)：	3.6 V	最小供电电压 (Vsup)：	3 V
标称供电电压 (Vsup)：	3.3 V	表面贴装：	YES
温度等级：	OTHER	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	4.4 mm
Base Number Matches：	1

BQ2084DBT-V140G4 数据手册

bq2084-V140

RTT

DBT

www.ti.com

SLUS664B–JULY 2005–REVISED AUGUST 2006

SBS v1.1-COMPLIANT GAS GAUGE FOR

USE WITH THE bq29312

FEATURES

DESCRIPTION

•

Provides Accurate Measurement of Available

Charge in Li-Ion and Li-Polymer Batteries

The bq2084-V140 SBS-compliant gas gauge IC for

battery pack or in-system installation maintains an

accurate record of available charge in Li-ion or

Li-polymer batteries. The bq2084-V140 monitors

capacity and other critical parameters of the battery

pack and reports the information to the system host

controller over a serial communication bus. It is

designed to work with the bq29312 AFE protection

IC to maximize functionality and safety and minimize

component count and cost in smart battery circuits.

Using information from the bq2084-V140, the host

controller can manage remaining battery power to

extend the system run time as much as possible.

Supports the Smart Battery Specification

(SBS) V1.1

Integrated Time Base Removes Need for

External Crystal with Optional Crystal input

Works With the TI bq29312 Analog Front-End

(AFE) Protection IC to Provide Complete Pack

Electronics for 7.2-V, 10.8-V or 14.4-V Battery

Packs With Few External Components

•

Based on a Powerful Low-Power RISC CPU

Core With High-Performance Peripherals

The bq2084-V140 uses an integrating converter with

continuous sampling for the measurement of battery

charge and discharge currents. Optimized for

coulomb counting in portable applications, the

self-calibrating integrating converter has a resolution

better than 0.65-nVh and an offset measurement

error of less than 1-µV (typical). For voltage and

temperature reporting, the bq2084-V140 uses a

16-bit A-to-D converter. With the bq29312, the

onboard ADC also monitors the pack and individual

cell voltages in a battery pack and allows the

bq2084-V140 to generate the control signals

necessary to implement the cell balancing and the

required safety protection for Li-ion and Li-polymer

battery chemistries.

Integrated Flash Memory Eliminates the Need

for External Configuration EEPROM

Uses 16-Bit Delta Sigma Converter for

Accurate Voltage and Temperature

Measurements

•

Measures Charge Flow Using a High

Resolution 16-Bit Integrating Converter

– Better Than 0.65-nVh of Resolution

– Self-Calibrating

– Offset Error Less Than 1-µV

•

Programmable Cell Modeling for Maximum

Battery Fuel Gauge Accuracy

Drives 3-, 4-, or 5-Segment LED Display for

Remaining Capacity Indication

The bq2084-V140 supports the Smart Battery Data

(SBData) commands and charge-control functions. It

communicates data using the System Management

Bus (SMBus) 2-wire protocol. The data available

Available in a 38-Pin TSSOP (DBT) Package

include

the

battery's

remaining

capacity,

APPLICATIONS

temperature, voltage, current, and remaining

run-time predictions.

•

Notebook PCs

Medical and Test Equipment

Portable Instrumentation

The bq2084-V140 provides LED drivers and a

pushbutton input to depict remaining battery capacity

from full to empty in 20%, 25%, or 33% increments

with a 3-, 4-, or 5-segment display.

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 the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...67

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与BQ2084DBT-V140G4相关器件

型号	品牌	获取价格	描述	数据表
BQ2084DBT-V141	TI	获取价格	SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312
BQ2084DBT-V143	TI	获取价格	SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312
BQ2084DBT-V143G4	TI	获取价格	SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312
bq2084DBT-V150	TI	获取价格	SBS v1.1-COMPLIANT GAS GAUGE WITH LED DELAY
BQ2084DBT-V150G4	TI	获取价格	SBS v1.1-COMPLIANT GAS GAUGE WITH LED DELAY
BQ2084RTTR-V140	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC36, GREEN, PLASTIC, QFN-36
BQ2084RTTR-V143	TI	获取价格	SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312
BQ2084RTTT-V143	TI	获取价格	SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312
BQ2084RTT-V140	TI	获取价格	SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312
BQ2084RTT-V143	TI	获取价格	SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312

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