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BQ2004SN.B中文资料

厂家型号

BQ2004SN.B

文件大小

360.89Kbytes

页面数量

22

功能描述

Fast-Charge IC

数据手册

下载地址一下载地址二到原厂下载

简称

TI2德州仪器

生产厂商

Texas Instruments

中文名称

美国德州仪器公司官网

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BQ2004SN.B数据手册规格书PDF详情

Features

➤ Fast charge and conditioning of

nickel cadmium or nickel-metal

hydride batteries

➤ Hysteretic PWM switch-mode

current regulation or gated control

of an external regulator

➤ Easily integrated into systems or

used as a stand-alone charger

➤ Pre-charge qualification of temperature

and voltage

➤ Configurable, direct LED outputs

display battery and charge status

➤ Fast-charge termination by Δ temperature/

Δ time, peak volume detection,

-ΔV, maximum voltage,

maximum temperature, and maximum

time

➤ Optional top-off charge and

pulsed current maintenance

charging

➤ Logic-level controlled low-power

mode (< 5μAstandby current)

General Description

The bq2004 Fast Charge IC provides

comprehensive fast charge control

functions together with high-speed

switching power control circuitry on a

monolithicCMOS device.

Integration of closed-loop current

control circuitry allows the bq2004

to be the basis of a cost-effective solution

for stand-alone and systemintegrated

chargers for batteries of

one or more cells.

Switch-activated discharge-beforecharge

allows bq2004-based chargers

to support battery conditioning and

capacity determination.

High-efficiency power conversion is

accomplished using the bq2004 as a

hysteretic PWM controller for

switch-mode regulation of the charging

current. The bq2004 may alternatively

be used to gate an externally

regulated charging current.

Fast charge may begin on application

of the charging supply, replacement

replacement

of the battery, or switch depression.

For safety, fast charge is

inhibited unless/until the battery

temperature and voltage are within

configured limits.

Temperature, voltage, and time are

monitored throughout fast charge.

Fast charge is terminated by any of

the following:

 Rate of temperature time

(ΔT/Δt)

 Peak voltage detection (PVD)

 Negative delta voltage (-ΔV)

 Maximum voltage

 Maximum temperature

 Maximum time

After fast charge, optional top-off

and pulsed current maintenance

phases are available.

更新时间:2025-7-24 15:00:00
供应商 型号 品牌 批号 封装 库存 备注 价格
TI
23+
SOP-16
8650
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17372
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19+
SOP-16
32000
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TI/德州仪器
23+
SOP-16
50000
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TI
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SOP-16
50000
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3200
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8880
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TI/德州仪器
23+
SOP-16
10000
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TI/德州仪器
22+
SOP-16
12245
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15+
SOP-16
4370
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Texas Instruments 美国德州仪器公司

中文资料: 21580条

德州仪器(Texas Instruments),简称TI,是全球领先的半导体公司,为现实世界的信号处理提供创新的数字信号处理(DSP)及模拟器件技术。除半导体业务外,还提供包括传感与控制、教育产品和数字光源处理解决方案。TI总部位于美国德克萨斯州的达拉斯,并在25多个国家设有制造、设计或销售机构。德州仪器是推动互联网时代不断发展的半导体引擎,作为实时技术的领导者,TI正在快速发展,在无线与宽带接入等大型市场及数码相机和数字音频等新兴市场方面,凭借性能卓越的半导体解决方案不断推动着互联网时代的前进步伐。TI预想未来世界的方方面面都渗透着TI产品的点点滴滴,每个电话、每次上网、拍的每张照片、听的每