彩票网站平台

  • <tr id='zNaaal'><strong id='zNaaal'></strong><small id='zNaaal'></small><button id='zNaaal'></button><li id='zNaaal'><noscript id='zNaaal'><big id='zNaaal'></big><dt id='zNaaal'></dt></noscript></li></tr><ol id='zNaaal'><option id='zNaaal'><table id='zNaaal'><blockquote id='zNaaal'><tbody id='zNaaal'></tbody></blockquote></table></option></ol><u id='zNaaal'></u><kbd id='zNaaal'><kbd id='zNaaal'></kbd></kbd>

    <code id='zNaaal'><strong id='zNaaal'></strong></code>

    <fieldset id='zNaaal'></fieldset>
          <span id='zNaaal'></span>

              <ins id='zNaaal'></ins>
              <acronym id='zNaaal'><em id='zNaaal'></em><td id='zNaaal'><div id='zNaaal'></div></td></acronym><address id='zNaaal'><big id='zNaaal'><big id='zNaaal'></big><legend id='zNaaal'></legend></big></address>

              <i id='zNaaal'><div id='zNaaal'><ins id='zNaaal'></ins></div></i>
              <i id='zNaaal'></i>
            1. <dl id='zNaaal'></dl>
              1. <blockquote id='zNaaal'><q id='zNaaal'><noscript id='zNaaal'></noscript><dt id='zNaaal'></dt></q></blockquote><noframes id='zNaaal'><i id='zNaaal'></i>
                                       
                English
                                             
                 
                 
                   
                 
                Product Information
                Your Position :Product
                 
                   
                - Voltage detector IC  
                - Reset IC  
                 
                - 1-Cell Li+ Battery Charger IC
                - 2-Cell Lithium Battery Charger IC
                - Multi-Cell Li+ Battery Charger IC
                - LA Battery Charger IC
                - LiFePO4 Battery Charger IC
                - Solar Panel-Powered Charger IC
                - NIMH Battery Charger IC
                - SuperCapacitor Charger
                 
                - WLED Driver
                 
                - DC-DC Converter
                 
                - LDO
                 
                - Amplifiers
                 
                CN3305
                PFM Step-up Multi-cell Battery Charger IC
                Product Profile
                      Application Note
                 
                General Description:
                CN3305 is a PFM mode step-up battery charge management IC with operating voltage range between 2.7V to 6.5V. It is specially designed for multi-cell lithium-ion, LiFePO4 and Lead Acid battery charge management with fewer external components. CN3305 adopts constant current and quasi-constant voltage(Quasi-CVTM) mode to charge battery.
                On power up, CN3305 enters charging mode, the external N-channel MOSFET is turned on, inductor current rises. When inductor current reaches upper threshold, the N-channel MOSFET is turned off, inductor is discharged, the energy stored in inductor is transferred to battery. When the inductor current is discharged to its lower threshold, the N-channel MOSFET is turned on again. When FB pin voltage reaches 1.205V(Typ.) for the first time, CN3305 enters quasi-CV mode, in which the charge current is reduced. The charge process will not be terminated until FB voltage reaches 1.205V for the second time. In termination mode, the N-channel MOSFET is turned off. When FB voltage falls below recharge threshold, the CN3305 enters charge mode again. CN3305’s switching frequency can be up to 1MHz, which makes a small-profile inductor usable.
                If battery voltage is lower than input voltage by a diode drop, CN3305 will increase the off time to 5us to reduce the charge current as a protection for battery with the joint action of external N-channel and P-channel MOSFET.
                The other features include status indication, etc.
                CN3305 is available in 8-pin SOP package.
                 
                 
                Applications:
                Lithium-ion,LiFEPO4 and Lead-Acid Battery Power Bank
                Audio System Standalone battery charger
                Electric Appliance    
                 
                Features:
                Input Voltage Range:2.7V to 6.5V
                Operating Current:280uA@VIN=5V
                Inductor Current Detection
                Switching Frequency up to 1MHz
                Quasi-CV mode to Compensate for the Voltage Loss on Battery Internal Resistance and Trace Resistance
                Automatic Recharge
                Output Power up to 35W
                Protection for Battery Voltage Being Low than Input and Short Battery
                Good adaptability to Input Supply with Limited Driving Capability
                Chip Enable Input
                Battery Overvoltage Protection
                Status Indication
                Operating Temperature Range:-40℃ to 85℃
                Available in SOP8 Package
                Lead-free, rohs-Compliant and Halogen Free
                 
                Application Note:
                 
                 
                 
                Copyright©2004-2021 Shanghai Consonance Electronics Incorporated. All rights reserved.