Datasheet > 电源电路 > 电源管理电路> BQ2058CSN-C5

BQ2058CSN-C5

更新时间： 2024-11-13 04:34:39

品牌	Logo	应用领域
德州仪器 - TI		电池
页数	文件大小	规格书
14页	157K
描述
Lithium Ion Pack Supervisor for 3- and 4-Cell Packs

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中文翻译

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数据手册

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BQ2058CSN-C5 数据手册

bq2058

Lithium Ion Pack Supervisor

for 3- and 4-Cell Packs

vents overcharge of any cell within

Features

General Description

the battery pack. After an overvolt-

age condition occurs, each cell must

fall below V_CE(charge enable voltage)

for the bq2058 to re-enable charging.

➤ Protects and individually moni-

tors three or four Li-Ion series

cells for overvoltage, undervolt-

age

The bq2058 Lithium Ion Pack Super-

visor is designed to control the charge

and discharge cell voltages for three or

four lithium ion (Li-Ion) series cells,

accommodating battery packs contain-

ing series/parallel configurations. The

low operating current does not over-

discharge the cells during periods of

storage and does not significantly in-

crease the system discharge load. The

bq2058 can be part of a low-cost Li-Ion

charge control system within the bat-

tery pack.

The bq2058 protects batteries from

overdischarge. If the voltage on any

cell falls below V_UV(undervoltage

limit) for a user-configurable delay pe-

riod (t_UVD), the DSG output is driven

high, shutting off the battery dis-

charge. This safety feature prevents

overdischarge of any cell within the

battery pack.

➤ Monitors pack for overcurrent

➤ Designed for battery pack inte-

gration

➤ Minimal external components

➤ Drives external FET switches

➤ Selectable overvoltage (V_OV

)

The bq2058 also stops discharge on

detection of an overcurrent condition,

such as a short circuit. If an overcur-

rent condition occurs for a user-

configurable delay period (t_OCD), the

DSG output is driven high, disconnect-

ing the load from the pack. DSG re-

mains high until removal of the short

circuit or overcurrent condition.

thresholds

The bq2058 controls two external FETs

to limit the charge and discharge poten-

tials. The bq2058 allows charging when

each individual cell voltage is below V_OV

(overvoltage limit). If the voltage on any

cell exceeds V_OVfor a user-configurable

- ^{Mask-programmable by}

Unitrode

- Standard version–4.25V

➤ Supply current: 25µA typical

➤ Sleep current: 0.7µA typical

➤ 16-pin 150-mil narrow SOIC

delay period (t_OVD), the

CHG pin is

driven high, shutting off charge to the

battery pack. This safety feature pre-

Pin Names

Pin Connections

DSG

NSEL

UVD

OVD

OCD

V_CC

Discharge control output

3- or 4-cell selection

CHG

CTL

V_SS

Charge control output

Pack disable input

Low potential input

CHG

CTL

DSG

NSEL

UVD

OVD

OCD

Undervoltage delay input

Overvoltage delay input

Overcurrent delay input

High potential input

CSL

Current sense low-side

input

BAT

BAT_4N

BAT_3N

BAT_2N

BAT_1N

Battery 4 negative input

Battery 3 negative input

Battery 2 negative input

Battery 1 negative input

BAT

CSH

Current sense high-side

input

BAT

16-Pin Narrow SOIC

BAT_1P

Battery 1 positive input

PN205801.eps

1/99 I

12 3 4 5 6 7...14

中文翻译

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与BQ2058CSN-C5相关器件

型号	品牌	获取价格	描述	数据表
BQ2058CSN-C5TR	TI	获取价格	Lithium Ion Pack Supervisor for 3- and 4-Cell Packs
BQ2058CSN-C5TRG4	TI	获取价格	Lithium Ion Pack Supervisor for 3- and 4-Cell Packs
BQ2058DSN	TI	获取价格	Lithium Ion Pack Supervisor for 3- and 4-Cell Packs
BQ2058DSN-C5	TI	获取价格	Lithium Ion Pack Supervisor for 3- and 4-Cell Packs
BQ2058FSN	TI	获取价格	Lithium Ion Pack Supervisor for 3- and 4-Cell Packs
BQ2058GSN	TI	获取价格	Lithium Ion Pack Supervisor for 3- and 4-Cell Packs
BQ2058JSN	TI	获取价格	Lithium Ion Pack Supervisor for 3- and 4-Cell Packs
BQ2058JSNXXXX	TI	获取价格	4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, SOIC-16
BQ2058KSN	TI	获取价格	Lithium Ion Pack Supervisor for 3- and 4-Cell Packs
BQ2058MSN	TI	获取价格	Lithium Ion Pack Supervisor for 3- and 4-Cell Packs

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