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BQ29415DCTR PDF预览

BQ29415DCTR

更新时间: 2024-09-16 04:09:27
品牌 Logo 应用领域
德州仪器 - TI 电池
页数 文件大小 规格书
13页 205K
描述
VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)

BQ29415DCTR 数据手册

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bq29410, bq29411, bq29412  
bq29413, bq29414, bq29415  
www.ti.com  
SLUS669DAUGUST 2005REVISED OCTOBER 2006  
VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES  
nd  
(2 -LEVEL PROTECTION)  
FEATURES  
FUNCTION  
2-, 3-, or 4-Cell Secondary Protection  
Low Power Consumption ICC < 2 µA  
[VCELL(ALL) < V(PROTECT)  
Each cell in a multiple-cell pack is compared to an  
internal reference voltage. If one cell reaches an  
overvoltage condition, the protection sequence  
begins. The bq2941x device starts charging an  
external capacitor through the CD pin. When the CD  
pin voltage reaches 1.2 V, the OUT pin changes  
from a low level to a high level.  
]
Fixed High Accuracy Overvoltage Protection  
Threshold  
– bq29410 = 4.35 V  
– bq29411 = 4.40 V  
DCT PACKAGE  
(TOP VIEW)  
– bq29412 = 4.45 V  
– bq29413 = 4.50 V  
1
2
3
4
8
OUT  
VDD  
CD  
VC1  
VC2  
VC3  
– bq29414 = 4.55 V  
7
6
5
– bq29415 = 4.60 V  
Programmable Delay Time of Detection  
High Power Supply Ripple Rejection  
Stable During Pulse Charge Operation  
VC4  
GND  
PW PACKAGE  
(TOP VIEW)  
APPLICATIONS  
2nd-Level Overvoltage Protection in Li-Ion  
Battery Packs in:  
1
2
3
4
8
7
6
5
VC1  
OUT  
VC2  
VC3  
GND  
VDD  
CD  
– Notebook Computers  
– Portable Instrumentation  
– Portable Equipment  
VC4  
DESCRIPTION  
The bq2941x is a secondary overvoltage protection  
IC for 2-, 3-, or 4-cell lithium-ion battery packs that  
incorporates a high-accuracy precision overvoltage  
detection circuit. It includes a programmable delay  
circuit for overvoltage detection time.  
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.  
UNLESS OTHERWISE NOTED this document contains  
Copyright © 2005–2006, Texas Instruments Incorporated  
PRODUCTION DATA information current as of publication date.  
Products conform to specifications per the terms of Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  

BQ29415DCTR 替代型号

型号 品牌 替代类型 描述 数据表
BQ29415DCTT TI

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