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BQ29440 数据手册 ( 数据表 ) - Texas Instruments

零件编号产品描述(功能)生產廠家
BQ29440 Voltage Protection for 2-Series, 3-Series, or 4-Series Cell Li-Ion Batteries (Second-Level Protection) TI
Texas Instruments TI
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BQ29440 Datasheet PDF : BQ29440 pdf   
BQ29449 image

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.
   
FEATURES
• 2-Series, 3-Series, or 4-Series Cell Secondary
    Protection
• 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
   
APPLICATIONS
• Second-Level Protection in Li-Ion Battery
    Packs
    – Notebook Computers
    – Power Tools
    – Portable Equipment and Instrumentation
   

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BQ29440 有关数据资料列表

零件编号产品描述(功能)PDF生產廠家
BQ29330 2-SERIES, 3-SERIES, AND 4-SERIES CELL LITHIUM-ION OR LITHIUM-POLYMER BATTERY PROTECTION AFE BQ29330 View Texas Instruments
MM1309 Protection of Lithium Ion Batteries (three cells in series) MM1309 View Mitsumi
MM1294 Protection of Lithium Ion Batteries (four cells in series) MM1294 View Mitsumi
BQ29410 VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION) BQ29410 View Texas Instruments
76PL536AQ1 3 to 6 Series Cell Lithium-Ion Battery Monitor and Secondary Protection IC for EV and HEV Applications 76PL536AQ1 View Texas Instruments
MM1292 Protection of Lithium Ion Batteries (two cells in series) MM1292 View Mitsumi
RT9526A Linear Single Cell Li-Ion Battery Charger with Input Over Voltage Protection RT9526A View Richtek Technology
RT9526 Linear Single Cell Li-Ion Battery Charger with Input Over Voltage Protection RT9526 View Richtek Technology
A7B Single-cell Li-ion / Li-polymer Battery Protection IC A7B View AnaSem Semiconductors
X3102 3 Cell Li-Ion Battery Protection and Monitor IC X3102 View Intersil

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