參數(shù)資料
型號: LTC4099EUDC#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC20
封裝: 3 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件頁數(shù): 11/36頁
文件大?。?/td> 536K
代理商: LTC4099EUDC#TRPBF
LTC4099
4099fd
occurs,itmaybedesirabletohaveapplicationsoftware
enforceanemergencyreductionofpowerintheportable
product.Itispossibletoenablethebatteryconditioner
circuit at this temperature to reduce stress caused by
simultaneoushightemperatureandhighvoltageviathe
I2C port. See the Overtemperature Battery Conditioner
section.
Thethermistordetectioncircuitsamplesthethermistor’s
value continuously whenever charging is enabled and
periodicallywhenitisnot.Whenthechargerisnoten-
abled,thethermistorissampledfor150sapproximately
every150ms.ThethermistordataavailabletotheI2Cport
isupdatedattheendofeachsampleperiod.
CLEAR EVENT TIMER
NTC OUT-OF-RANGE
INDICATE NTC FAULT
CHARGE WITH
CONSTANT-CURRENT
PAUSE EVENT TIMER
INHIBIT CHARGING
PAUSE EVENT TIMER
CHARGE WITH
FIXED VOLTAGE
RUN EVENT TIMER
CHARGE WITH
103V/RPROG
RUN EVENT TIMER
INDICATE CHARGING
POWER AVAILABLE
TIMER > 30 MINUTES
SAFETY TIMER
EXPIRED
BAT > 2.85V
BAT < VRECHRG
IBAT < C/x
NO
YES
NO
BAT > VFLOAT
BAT < 2.85V
2.85V < BAT < VFLOAT
NO
INHIBIT CHARGING
STOP CHARGING
INDICATE BATTERY FAULT
BAT RISING
THROUGH VRECHRG
BAT FALLING
THROUGH VRECHRG
INDICATE CHARGING
STOPPED
INDICATE C/x REACHED
4099 F04
NO
YES
BATTERY STATE
Figure 4. Battery Charger Flow Chart
operaTion
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