TI-BQ24105-Q1.pdf资源-CSDN文库

需积分: 8 3 浏览量 2022-10-29 19:59:30 上传评论 5 收藏 1.44MB PDF 举报

资源详情

资源评论

资源推荐

STAT1

VCC

TTC

ISET1

ISET2

STAT2

PGND

SNS

BAT

OUT

VTSB

VSS

bq24105-Q1

www.ti.com

SLUS953A –AUGUST 2009–REVISED APRIL 2012

SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POLYMER CHARGE-MANAGEMENT

IC WITH INTEGRATED POWER FETs ( bqSWITCHER™)

Check for Samples: bq24105-Q1

FEATURES

DESCRIPTION

The bqSWITCHER™ series are highly integrated Li-

• Qualified for Automotive Applications

ion and Li-polymer switch-mode charge management

• Ideal For Highly Efficient Charger Designs For

devices targeted at a wide range of portable

Single-, Two-, or Three-Cell Li-Ion and Li-

applications. The bqSWITCHER™ series offers

Polymer Battery Packs

integrated synchronous PWM controller and power

FETs, high-accuracy current and voltage regulation,

• Also for LiFePO

Battery (see Using bq24105

charge preconditioning, charge status, and charge

to Charge LiFePO4 Battery)

termination, in a small, thermally enhanced QFN

• Integrated Synchronous Fixed-Frequency

package.

PWM Controller Operating at 1.1 MHz

The bqSWITCHER charges the battery in three

With 0% to 100% Duty Cycle

phases: conditioning, constant current, and constant

• Integrated Power FETs For Up To 2-A Charge

voltage. Charge is terminated based on user-

Rate

selectable minimum current level. A programmable

• High-Accuracy Voltage and Current Regulation

charge timer provides a safety backup for charge

termination. The bqSWITCHER automatically restarts

• Stand-Alone (Built-In Charge Management and

the charge cycle if the battery voltage falls below an

Control) Version

internal threshold. The bqSWITCHER automatically

• Status Outputs For LED or Host Processor

enters sleep mode when V

supply is removed.

Interface Indicates Charge-In-Progress, Charge

Completion, Fault, and AC-Adapter Present

RHL PACKAGE

Conditions

(TOP VIEW)

• 20-V Maximum Voltage Rating on IN and OUT

Pins

• High-Side Battery Current Sensing

• Battery Temperature Monitoring

• Automatic Sleep Mode for Low Power

Consumption

• Reverse Leakage Protection Prevents Battery

Drainage

• Thermal Shutdown and Protection

• Built-In Battery Detection

• Available in 20-Pin, 3.5 mm × 4.5 mm, QFN

Package

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.

2bqSWITCHER, PowerPAD are trademarks of Texas Instruments.

3All other trademarks are the property of their respective owners.

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.

bq24105-Q1

SLUS953A –AUGUST 2009–REVISED APRIL 2012

www.ti.com

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with

appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more

susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

ORDERING INFORMATION

(1)

PACKAGE

(2)

ORDERABLE PART NUMBER TOP-SIDE MARKING

–40°C to 85°C QFN – RHL Reel of 3000 BQ24105IRHLRQ1 BQ24105

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

ABSOLUTE MAXIMUM RATINGS

(1)

over operating free-air temperature range (unless otherwise noted)

Supply voltage range (with respect to V

) IN, VCC 20 V

STAT1, STAT2, PG, CE, SNS, BAT –0.3 V to 20 V

OUT –0.7 V to 20 V

Input voltage range (with respect to V

and PGND) TS, TTC 7 V

VTSB 3.6 V

ISET1, ISET2 3.3 V

Voltage difference between SNS and BAT inputs (V

SNS

– V

BAT

) ±1 V

Output sink STAT1, STAT2, PG 10 mA

Output current (average) OUT 2.2 A

Operating free-air temperature range –40°C to 85°C

Junction temperature range –40°C to 125°C

stg

Storage temperature –65°C to 150°C

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 300°C

(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating

conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

PACKAGE DISSIPATION RATINGS

< 40°C DERATING FACTOR

PACKAGE θ

POWER RATING ABOVE T

= 40°C

RHL

(1)

46.87°C/W 2.5°C/W 1.81 W 0.021 W/°C

(1) This data is based on using the JEDEC High-K board, and the exposed die pad is connected to a copper pad on the board. This is

connected to the ground plane by a 2x3 via matrix.

RECOMMENDED OPERATING CONDITIONS

MIN MAX UNIT

Supply voltage, V

and IN (Tie together) 4.35

(1)

(2)

Operating junction temperature range, T

–40 125 °C

(1) The IC continues to operate below V

min

, to 3.5 V, but the specifications are not tested and not specified.

(2) The inherent switching noise voltage spikes should not exceed the absolute maximum rating on either the IN or OUT pins. A tight layout

minimizes switching noise.

ELECTRICAL CHARACTERISTICS

= 0°C to 125°C and recommended supply voltage range (unless otherwise stated)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Input Currents

IREG

RSET1

1000,

IREG*PRE

0.1V

RSET2

1000,

bq24105-Q1

www.ti.com

SLUS953A –AUGUST 2009–REVISED APRIL 2012

ELECTRICAL CHARACTERISTICS (continued)

= 0°C to 125°C and recommended supply voltage range (unless otherwise stated)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

> V

CC(min)

, PWM switching 10

(VCC)

supply current V

> V

CC(min)

, PWM NOT switching 5

> V

CC(min)

, CE = HIGH 315 μA

0°C ≤ T

≤ 65°C, V

I(BAT)

= 4.2 V,

3.5

< V

(SLP)

or V

> V

(SLP)

but not in charge

Battery discharge sleep current, (SNS, 0°C ≤ T

≤ 65°C, V

I(BAT)

= 8.4 V,

(SLP)

5.5 μA

BAT, OUT, FB pins) V

< V

(SLP)

or V

> V

(SLP)

but not in charge

0°C ≤ T

≤ 65°C, V

I(BAT)

= 12.6 V,

7.7

< V

(SLP)

or V

> V

(SLP)

but not in charge

Voltage Regulation

Feedback regulation REF for bq24105

IBAT

= 25 nA typical into pin 2.1 V

(W/FB)

= 25°C –0.5% 0.5%

Voltage regulation accuracy

–1% 1%

Current Regulation - Fast Charge

LOWV

≤ V

I(BAT)

< V

OREG

OCHARGE

Output current range of converter 150 2000 mA

(VCC)

- V

I(BAT)

> V

(DO-MAX)

100 mV ≤ V

IREG

≤ 200 mV,

IREG

Voltage regulated across R

(SNS)

Accuracy –10% 10%

Programmed Where

5 kΩ ≤ RSET1 ≤ 10 kΩ, Select RSET1 to

program V

IREG

IREG(measured)

= I

OCHARGE

+ R

SNS

(–10% to 10% excludes errors due to RSET1

and R

(SNS)

tolerances)

(LOWV)

≤ V

I(BAT)

≤ V

O(REG)

(ISET1)

Output current set voltage 1 V

(VCC)

≤ V

I(BAT)

V(DO-MAX)

LOWV

≤ V

I(BAT)

< V

O(REG)

(ISET1)

Output current set factor 1000 V/A

(VCC)

≤ V

I(BAT)

V(DO-MAX)

Precharge and Short-Circuit Current Regulation

Precharge to fast-charge transition voltage

LOWV

threshold, BAT, 68 71.4 75 %V

O(REG)

bq24100/03/03A/04/05/08/09 ICs only

Deglitch time for precharge to fast charge Rising voltage;

t 20 30 40 ms

transition, t

RISE

, t

FALL

= 100 ns, 2-mV overdrive

OPRECHG

Precharge range V

I(BAT)

< V

LOWV

, t < t

PRECHG

15 200 mA

(ISET2)

Precharge set voltage, ISET2 V

I(BAT)

< V

LOWV

, t < t

PRECHG

100 mV

(ISET2)

Precharge current set factor 1000 V/A

100 mV ≤ V

IREG-PRE

≤ 100 mV,

IREG-PRE

Voltage regulated across R

SNS

-Accuracy –20% 20%

(PGM) Where

1.2 kΩ ≤ RSET2 ≤ 10 kΩ, Select RSET1

to program V

IREG-PRE

(Measured) = I

OPRE-CHG

× R

SNS

(–20% to 20% excludes errors due to RSET1

and R

SNS

tolerances)

Charge Termination (Current Taper) Detection

TERM

Charge current termination detection range V

I(BAT)

> V

RCH

15 200 mA

Charge termination detection set voltage,

TERM

I(BAT)

> V

RCH

100 mV

ISET2

(ISET2)

Termination current set factor 1000 V/A

Charger termination accuracy V

I(BAT)

> V

RCH

–20% 20%

Both rising and falling,

dg-TERM

Deglitch time for charge termination 20 30 40 ms

2-mV overdrive t

RISE

, t

FALL

= 100 ns

Temperature Comparator and VTSB Bias Regulator

bq24105-Q1

www.ti.com

SLUS953A –AUGUST 2009–REVISED APRIL 2012

ELECTRICAL CHARACTERISTICS (continued)

= 0°C to 125°C and recommended supply voltage range (unless otherwise stated)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Sleep Comparator

≤ V

IBAT

≤ V

IBAT

2.3 V ≤ V

I(OUT)

≤ V

OREG,

for 1 or 2 cells

+5 mV +75 mV

SLP-ENT

Sleep-mode entry threshold V

I(OUT)

= 12.6 V, R

= 1 kΩ V

≤ V

IBAT

≤ V

IBAT

bq24105/15

(1)

-4 mV +73 mV

SLP-EXIT

Sleep-mode exit hysteresis, 2.3 V ≤ V

I(OUT)

≤ V

OREG

40 160 mV

decreasing below threshold,

FALL

= 100 ns, 10-mV overdrive, 5 μs

PMOS turns off

dg-SLP

Deglitch time for sleep mode

decreasing below threshold,

FALL

= 100 ns, 10-mV overdrive, 20 30 40 ms

STATx pins turn off

UVLO

UVLO-ON

IC active threshold voltage V

rising 3.15 3.30 3.50 V

IC active hysteresis V

falling 120 150 mV

PWM

7 V ≤ V

≤ V

CC(max)

400

Internal P-channel MOSFET on-resistance

4.5 V ≤ V

≤ 7 V 500

mΩ

7 V ≤ V

≤ V

CC(max)

130

Internal N-channel MOSFET on-resistance

4.5 V ≤ V

≤ 7 V 150

OSC

Oscillator frequency 1.1 MHz

Frequency accuracy –9% 9%

MAX

Maximum duty cycle 100%

MIN

Minimum duty cycle 0%

TOD

Switching delay time (turn on) 20 ns

syncmin

Minimum synchronous FET on time 60 ns

Synchronous FET minimum current-off

50 400 mA

threshold

(2)

Battery Detection

Battery detection current during time-out

DETECT

I(BAT)

< V

OREG

– V

RCH

2 mA

fault

DISCHRG1

Discharge current V

SHORT

< V

I(BAT)

< V

OREG

– V

RCH

400 μA

DISCHRG1

Discharge time V

SHORT

< V

I(BAT)

< V

OREG

– V

RCH

1 s

WAKE

Wake current V

SHORT

< V

I(BAT)

< V

OREG

– V

RCH

2 mA

WAKE

Wake time V

SHORT

< V

I(BAT)

< V

OREG

– V

RCH

0.5 s

Begins after termination detected,

DISCHRG2

Termination discharge current 400 μA

I(BAT)

≤ V

OREG

DISCHRG2

Termination time 262 ms

Output Capacitor

Required output ceramic capacitor range

OUT

from SNS to PGND, between inductor and 4.7 10 47 μF

SNS

Required SNS capacitor (ceramic) at SNS

SNS

0.1 μF

Protection

Threshold over V

OREG

to turn off P-channel

OVP

OVP threshold voltage MOSFET, STAT1, and STAT2 during charge 110 117 121 %V

O(REG)

or termination states

LIMIT

Cycle-by-cycle current limit 2.6 3.6 4.5 A

SHORT

Short-circuit voltage threshold, BAT V

I(BAT)

falling 1.95 2 2.05 V/cell

SHORT

Short-circuit current V

I(BAT)

≤ V

SHORT

35 65 mA

SHTDWN

Thermal trip 165 °C

Thermal hysteresis 10 °C

(1) For bq24105 and bq24115 only. R

is connected between IN and PGND pins and needed to ensure sleep entry.

(2) N-channel always turns on for ~60 ns and then turns off if current is too low.

剩余37页未读，继续阅读

评论收藏

内容反馈

不觉明了

粉丝: 3238
资源: 5614

TI-BQ24105-Q1.pdf

评论0

最新资源

TI-BQ24105-Q1.pdf

评论0

TI-BQ79614-Q1.pdf

TI-BQ24392-Q1.pdf

TI-BQ79656-Q1.pdf

TI-BQ79631-Q1.pdf

TI-BQ79600-Q1.pdf

TI-BQ29209-Q1.pdf

TI-BQ79606-Q1.pdf

相关实用应用程序（Windows可用）

李飞飞自传 我看见的世界 The World I see

ChatGPT使用总结：150个ChatGPT提示词模板（完整版）

chromedriver-win64.zip

全国计算机二级WPSoffice精选350道选择题题库（含答案）.pdf

哈尔滨工业大学-ChatGPT调研报告-2023.3.6-94页.pdf

智联招聘：2024年大学生就业力调研报告.pdf

4个亲测好用的ChatGPT4渠道

2024年俄罗斯陶瓷餐具市场机会及渠道调研报告Sample.pdf

第十九届研电赛-技术论文模板

学术海报模板+论文科研+研究生

北森能力测评题库.zip

车载毫米波雷达DOA估计综述博文仿真代码

ST-LINK Utility 4.6.0

农村公交与异构无人机协同配送优化

认知智能技术与产业研究报告2023

python大作业 含爬虫、数据可视化、地图、报告、及源码（2016-2021全国各地区粮食产量）.rar

最新资源

李飞飞自传我看见的世界 The World I see

python大作业含爬虫、数据可视化、地图、报告、及源码（2016-2021全国各地区粮食产量）.rar