电动自行车用锂电池保护IC,用于5~10节Li-ion保护IC BQ29500.
Bq29500 information:
Protect for 5-10 series Li-ion Battery
Balance function
With I2C interface
10-series Li-ion Battery Protect IC BQ29500.
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BQ77PL900,5至10节锂离子电池保护和AFE.
说明
The bq77PL900 is a five to ten series cell lithium-ion battery pack protector. The integrated I2C communications interface allows the bq77PL900 also to be as an analog front end (AFE) for a Host controller. Two LDOs, one 5 V/25 mA and one 3.3 V/25 mA, are also included and may be used to power a host controller or support circuitry.
The bq77PL900 integrates a voltage translation system to extract battery parameters such as individual cell voltages and charge/discharge current. Variables such as voltage protection thresholds and detection delay times can be programmed by using the internal EEPROM.
The bq77PL900 can act as a stand-alone self-contained battery protection system (stand-alone mode). It can alternatively be combined with a host microcontroller to offer fuel gauge or other battery management capabilities to the host system (host-control mode).
The bq77PL900 provides full safety protection for overvoltage, undervoltage, overcurrent in discharge, and short circuit in discharge conditions. When the EEPROM programmable safety thresholds are reached, the bq77PL900 turns off the FET drive autonomously. No external components are needed to configure the protection features.
The analog front end (AFE) outputs allow a host controller to observe individual cell voltages and charge/discharge currents. The host controller’s analog-to-digital converter connects to the bq77PL900 to acquire these values.
Cell balancing can be performed autonomously, or the host controller can activate it individually via a cell bypass path integrated into the bq77PL900. Internal control registers accessible via the I2C interface configure this operation. The maximum balancing bypass current is set via an external series resistor and the internal FET-on resistance (typically 400 ). Optionally, external bypass cell balance FETs can be used for increased current capability.
APPLICATIONS
Cordless Power Tools
BQ78PL114,具有PowerPump电池平衡的PowerLAN 网关电池管理控制器,
APPLICATIONS
Mobility Devices (E-Bike)
以上BQ77PL900可以免费索取评估板
新晔电子有限公司 Serial Microelectronic
新晔电子(香港)有限公司上海公司
Tel :021-54667999
M:13501671126
johnson.fan@serialmicro.com.cn
colin.chen@serialmicro.com.cn
Contact:樊 健/陈磊
新晔电子(香港)有限公司苏州公司
0512-67626852
johnson.fan@serialmicro.com.cn
Contact:樊 健/陈磊
新晔电子(香港)有限公司深圳公司
Tel :0755-8366 3686
M:13632937302
wenny.luo@serialmicro.com.cn
Contact:罗文亮/邵新华
667281221072072.pdf 667281221072316.pdf
说明
The bq77PL900 is a five to ten series cell lithium-ion battery pack protector. The integrated I2C communications interface allows the bq77PL900 also to be as an analog front end (AFE) for a Host controller. Two LDOs, one 5 V/25 mA and one 3.3 V/25 mA, are also included and may be used to power a host controller or support circuitry.
The bq77PL900 integrates a voltage translation system to extract battery parameters such as individual cell voltages and charge/discharge current. Variables such as voltage protection thresholds and detection delay times can be programmed by using the internal EEPROM.
The bq77PL900 can act as a stand-alone self-contained battery protection system (stand-alone mode). It can alternatively be combined with a host microcontroller to offer fuel gauge or other battery management capabilities to the host system (host-control mode).
The bq77PL900 provides full safety protection for overvoltage, undervoltage, overcurrent in discharge, and short circuit in discharge conditions. When the EEPROM programmable safety thresholds are reached, the bq77PL900 turns off the FET drive autonomously. No external components are needed to configure the protection features.
The analog front end (AFE) outputs allow a host controller to observe individual cell voltages and charge/discharge currents. The host controller’s analog-to-digital converter connects to the bq77PL900 to acquire these values.
Cell balancing can be performed autonomously, or the host controller can activate it individually via a cell bypass path integrated into the bq77PL900. Internal control registers accessible via the I2C interface configure this operation. The maximum balancing bypass current is set via an external series resistor and the internal FET-on resistance (typically 400 ). Optionally, external bypass cell balance FETs can be used for increased current capability.
APPLICATIONS
Cordless Power Tools
BQ78PL114,具有PowerPump电池平衡的PowerLAN 网关电池管理控制器,
APPLICATIONS
Mobility Devices (E-Bike)
以上BQ77PL900可以免费索取评估板
新晔电子有限公司 Serial Microelectronic
新晔电子(香港)有限公司上海公司
Tel :021-54667999
M:13501671126
johnson.fan@serialmicro.com.cn
colin.chen@serialmicro.com.cn
Contact:樊 健/陈磊
新晔电子(香港)有限公司苏州公司
0512-67626852
johnson.fan@serialmicro.com.cn
Contact:樊 健/陈磊
新晔电子(香港)有限公司深圳公司
Tel :0755-8366 3686
M:13632937302
wenny.luo@serialmicro.com.cn
Contact:罗文亮/邵新华
667281221072072.pdf 667281221072316.pdf
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@johnson_fan
BQ77PL900,5至10节锂离子电池保护和AFE.说明Thebq77PL900isafivetotenseriescelllithium-ionbatterypackprotector.TheintegratedI2Ccommunicationsinterfaceallowsthebq77PL900alsotobeasananalogfrontend(AFE)foraHostcontroller.TwoLDOs,one5V/25mAandone3.3V/25mA,arealsoincludedandmaybeusedtopowerahostcontrollerorsupportcircuitry.Thebq77PL900integratesavoltagetranslationsystemtoextractbatteryparameterssuchasindividualcellvoltagesandcharge/dischargecurrent.VariablessuchasvoltageprotectionthresholdsanddetectiondelaytimescanbeprogrammedbyusingtheinternalEEPROM.Thebq77PL900canactasastand-aloneself-containedbatteryprotectionsystem(stand-alonemode).Itcanalternativelybecombinedwithahostmicrocontrollertoofferfuelgaugeorotherbatterymanagementcapabilitiestothehostsystem(host-controlmode).Thebq77PL900providesfullsafetyprotectionforovervoltage,undervoltage,overcurrentindischarge,andshortcircuitindischargeconditions.WhentheEEPROMprogrammablesafetythresholdsarereached,thebq77PL900turnsofftheFETdriveautonomously.Noexternalcomponentsareneededtoconfiguretheprotectionfeatures.Theanalogfrontend(AFE)outputsallowahostcontrollertoobserveindividualcellvoltagesandcharge/dischargecurrents.Thehostcontroller’sanalog-to-digitalconverterconnectstothebq77PL900toacquirethesevalues.Cellbalancingcanbeperformedautonomously,orthehostcontrollercanactivateitindividuallyviaacellbypasspathintegratedintothebq77PL900.InternalcontrolregistersaccessibleviatheI2Cinterfaceconfigurethisoperation.ThemaximumbalancingbypasscurrentissetviaanexternalseriesresistorandtheinternalFET-onresistance(typically400).Optionally,externalbypasscellbalanceFETscanbeusedforincreasedcurrentcapability.APPLICATIONSCordlessPowerToolsBQ78PL114,具有PowerPump电池平衡的PowerLAN网关电池管理控制器,APPLICATIONSMobilityDevices(E-Bike)以上BQ77PL900可以免费索取评估板新晔电子有限公司SerialMicroelectronic新晔电子(香港)有限公司上海公司Tel:021-54667999M:13501671126johnson.fan@serialmicro.com.cncolin.chen@serialmicro.com.cnContact:樊健/陈磊新晔电子(香港)有限公司苏州公司0512-67626852johnson.fan@serialmicro.com.cnContact:樊健/陈磊新晔电子(香港)有限公司深圳公司Tel:0755-83663686M:13632937302wenny.luo@serialmicro.com.cnContact:罗文亮/邵新华667281221072072.pdf667281221072316.pdf
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本人正在打PCB做评估认证工作,希望和大家一起交流学习1
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