BQ24707RGRT

更新时间： 2024-11-23 12:21:31

品牌	Logo	应用领域
德州仪器 - TI		电源电路电池比较器电源管理电路电路保护控制器
页数	文件大小	规格书
36页	1269K
描述
1-4 Cell Li Battery SMBus Charge Controller With Independent Comparator and Advanced Circuit Protection

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BQ24707RGRT 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	VQFN-20	针数：	20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	1 week
风险等级：	1.35	Is Samacsys：	N
可调阈值：	YES	模拟集成电路 - 其他类型：	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：	S-PQCC-N20	JESD-609代码：	e4
长度：	3.5 mm	湿度敏感等级：	2
信道数量：	1	功能数量：	1
端子数量：	20	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVQCCN	封装等效代码：	LCC20,.14SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	4.5/24 V
认证状态：	Not Qualified	座面最大高度：	1 mm
子类别：	Power Management Circuits	最大供电电流 (Isup)：	3 mA
最大供电电压 (Vsup)：	24 V	最小供电电压 (Vsup)：	4.5 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
阈值电压标称：	+3.75V	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	3.5 mm	Base Number Matches：	1

BQ24707RGRT 数据手册

bq24707

bq24707A

www.ti.com

SLUSA78B –JULY 2010–REVISED MARCH 2011

1-4 Cell Li+ Battery SMBus Charge Controller With Independent Comparator and

Advanced Circuit Protection

Check for Samples: bq24707, bq24707A

FEATURES

DESCRIPTION

•

SMBus Host-Controlled NMOS-NMOS

Synchronous Buck Converter with

Programmable 615kHz, 750kHz, and 885kHz

Switching Frequency

The bq24707 and bq24707A are high-efficiency,

synchronous battery charger, offering low component

count for space-constraint, multi-chemistry battery

charging applications.

•

Real Time System Control on ILIM Pin to Limit

Charge Current

SMBus controlled input current, charge current, and

charge voltage DACs allow for very high regulation

accuracies that can be easily programmed by the

system power management micro-controller.

Enhanced Safety Features for Over Voltage

Protection, Over Current Protection, Battery,

Inductor, and MOSFET Short Circuit Protection

The IC uses the internal input current register or

external ILIM pin to throttle down PWM modulation to

reduce the charge current.

•

Programmable Input Current, Charge Voltage,

Charge Current Limits

–

±0.5% Charge Voltage Accuracy up to 19.2V

±3% Charge Current Accuracy up to 8.128A

±3% Input Current Accuracy up to 8.064A

The IC provides an IFAULT output to alarm if any

MOSFET fault or input over current occurs. This

alarm output allows users to turn off input power

selectors when the fault occurs. Meanwhile, an

independent comparator with internal reference is

available to monitor input current, output current, or

output voltage.

±2% 20x Adapter Current or Charge Current

Output Accuracy

•

Programmable Adapter Detection and

Indicator

The IC charges one, two, three, or four series Li+

cells, and is available in a 20-pin, 3.5×3.5 mm²QFN

package.

Independent Comparator with Internal

Reference

•

Integrated Soft Start

Integrated Loop Compensation

AC Adapter Operating Range 5V-24V

15µA Off-State Battery Discharge Current

20-pin 3.5 x 3.5 mm²QFN Package

bq24707: ACOK delay default 1.3s

bq24707A: ACOK delay default 1.2ms

15 LODRV

14 GND

13 SRP

ACN

ACP

bq24707

bq24707A

CMPOUT

CMPIN

ACOK

12 SRN

APPLICATIONS

•

Portable Notebook Computers, UMPC,

11 IFAULT

Ultra-Thin Notebook, and Netbook

•

Personal Digital Assistant

Handheld Terminal

Industrial and Medical Equipment

Portable Equipment

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...36

中文翻译

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BQ24707RGRT 替代型号

型号	品牌	替代类型	描述	数据表
BQ24707RGRR	TI	类似代替	1-4 Cell Li Battery SMBus Charge Controller With Independent Comparator and Advanced Circu

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BQ24721C	TI	获取价格	ADVANCED MULTI-CHEMISTRY AND MULTI-CELL SYNCHRONOUS SWITCH-MODE CHARGER AND SYSTEM POWER S
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BQ24721CRHBR	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC32, 5 X 5 MM, GREEN, PLASTIC, QFN-32
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