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特点
应用程序
描述
+
保护器
R2
100 k
可选 蓄电池 显示器/气体 量规
空调组件 +
空调组件 -
HDQ
1
2
3
4
5
v
抄送
v
ss
HDQ
SRN
srp
gpio
BA
t
R3
5 k
bq26150
R1
0.02
0.01 f
bq26150
SLUS641A–JANUARY2005–REVISEDJULY2005
BATTERYPACKSECURITYANDAUTHENTICATIONIC
forportableapplications(bqsecure™)
•
small5-pinsc70package
•
ProvidesAuthenticationofBatteryPacks
throughaprogrammablecrcwitha96-有点
•
CellularPhones
UniqueDeviceID
•
PDAandSmartPhones
•
16bytesofuser-programmablenonvolatile
•
MP3Players
记忆
•
DigitalCameras
•
12.5kviecesdprotectiononhdqinput
•
InternetAppliances
•
internaltime-baseeliminatesexternal
•
HandheldDevices
CrystalOscillator
•
低-poweroperating:&指示灯;30
µ
一个
•
单独-wirehdqinterface
•
PoweredDirectlyFromtheCommunication
总线
•
通过-throughhdqversionsupportsexisting
PacksWithGasGauges
thebq26150providesamethodtoauthenticatebatterypacks,ensuringthatonlypacksmanufacturedby
authorizedsub-contractorsareusedintheendapplication.thebq26150usesa96-bituniquedeviceid,设备
unique16-bitseed,anda16-bitdevicespecificcrctoprovidesecurity.thedeviceid,crcseed,andcrc
polynomialcoefficientsarestoredsecurelyineachbq26150device,allowingthehosttoauthenticateeachpack.
thebq26150communicatestothesystemoverasimpleone-电线,bidirectionalserialinterface.the5kbits/s
hdqbusinterfacesreducescommunicationsoverheadintheexternalmicrocontroller.thebq26150alsouses
thehdqbustochargeanexternalcapacitorthatprovidespowertothebq26150.
TYPICALAPPLICATION
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
bqsecureisatrademarkoftexasinstruments.
productpreviewinformationconcernsproductsintheforma-
copyright©2005,texasinstrumentsincorporated
开发阶段.characteristicdataandother
规范设计目标.texasinstrumentsreservesthe
右更改或中断eseproductswithoutdotice.
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