BQ29441DRBR PDF预览

BQ29441DRBR

更新时间: 2025-07-22 11:07:07
品牌 Logo 应用领域
德州仪器 - TI 电池光电二极管电源管理电路电源电路
页数 文件大小 规格书
17页 557K
描述
用于 2 节、3 节或 4 节锂离子电池的电压保护 (4.40V) | DRB | 8 | -40 to 85

BQ29441DRBR 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:SON
包装说明:HVSON,针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:8 weeks
风险等级:5.68其他特性:DETECTION THRESHOLD VOLTAGE IS 4.4V
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:S-PDSO-N8JESD-609代码:e4
长度:3 mm湿度敏感等级:2
信道数量:1功能数量:1
端子数量:8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:HVSON封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
座面最大高度:1 mm最大供电电压 (Vsup):25 V
最小供电电压 (Vsup):4 V标称供电电压 (Vsup):17 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:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3 mm
Base Number Matches:1

BQ29441DRBR 数据手册

 浏览型号BQ29441DRBR的Datasheet PDF文件第2页浏览型号BQ29441DRBR的Datasheet PDF文件第3页浏览型号BQ29441DRBR的Datasheet PDF文件第4页浏览型号BQ29441DRBR的Datasheet PDF文件第5页浏览型号BQ29441DRBR的Datasheet PDF文件第6页浏览型号BQ29441DRBR的Datasheet PDF文件第7页 
bq29440, bq2944L0  
bq29441, bq29442, bq29443, bq29449, bq2944L9  
www.ti.com  
SLUSA15C JUNE 2010REVISED NOVEMBER 2010  
Voltage Protection for 2-Series, 3-Series, or 4-Series Cell Li-Ion Batteries  
(Second-Level Protection)  
Check for Samples: bq29440, bq2944L0, bq29441, bq29442, bq29443, bq29449, bq2944L9  
1
FEATURES  
APPLICATIONS  
Second-Level Protection in Li-Ion Battery  
Packs  
2-Series, 3-Series, or 4-Series Cell Secondary  
Protection  
Notebook Computers  
Power Tools  
Portable Equipment and Instrumentation  
External Capacitor-Controlled Delay Timer  
Low Power Consumption ICC < 2 µA Typical  
[VCELL(ALL) < VPROTECT  
]
High-Accuracy Overvoltage Protection: ±25  
mV with TA = 0°C to 60°C  
Fixed Overvoltage Protection Thresholds:  
4.30 V, 4.35 V, 4.40 V, 4.45 V, 4.50 V  
Small 8L QFN Package  
DESCRIPTION  
The bq2944x is a secondary overvoltage protection IC for 2-series, 3-series, or 4-series cell Li-Ion battery packs  
that incorporates a high-accuracy precision overvoltage detection circuit.  
FUNCTION  
The voltage of each cell in a battery pack is compared to an internal reference voltage. If any cells reach an  
overvoltage condition, the bq2944x device starts a timer that provides a delay proportional to the capacitance on  
the CD pin. Upon expiration of the internal timer, the OUT pin changes from a low state to a high state. An  
optional latch configuration is available that holds the OUT pin in a high state indefinitely after an overvoltage  
condition has satisfied the specified delay timer period. The latch is released when the CD pin is shorted to GND.  
T
T
DRB Package  
(Top View)  
1
2
3
4
8
7
6
5
VC1  
VC2  
VC3  
GND  
OUT  
VDD  
CD  
VC4  
P0012-02  
1
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.  
Copyright © 2010, Texas Instruments Incorporated  
 
 

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