參數(shù)資料
型號： LTC4110EUHF#TR
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC38
封裝： 5 X 7 MM, 0.75 MM HEIGHT, PLASTIC, MO-220WHKD, QFN-38
文件頁數(shù)： 9/52頁
文件大小： 450K
代理商： LTC4110EUHF#TR
LTC4110
17
4110fb
OPERATION
Figure 4. Smart Battery Charge State Diagram (Does Not Include Calibration)
#
Logic Event (T = True, F = False) [Notes]
Notes and/or Actions (T = True, F = False)
1
Or
RES_OR = F & DCDIV pin = T & SHDN pin = F &
CHARGE_INHIBITED = F & CHG_FLT = F & RES_HOT = F
RES_OR = F & DCDIV pin = T & SHDN pin = F &
CHARGE_INHIBITED = F & CHG_FLT = F & RES_HOT = T &
RES_UR = T
IPPC = On (Constant Current only) & TTIMEOUT = Started & CHG = T
2
ChargingVoltage() & ChargingCurrent() ≠ 0 sent
Timer/4(Pre-Charge) = Started & TTIMEOUT disabled & ALARM_
INHIBITED = F
3VBAT > VBC
IPPC = Off, ICHG = On, Timer/4(Pre-Charge) = Stopped & Timer(SMBus)
= Started
4
ChargingVoltage() or ChargingCurrent() = 0 sent
ICHG = Off & All Timers = Reset & CHG = F
5
Timer/4(Pre-Charge) = Done before VBAT > VBC
IPPC = Off & All Timers = Reset & CHG = F
6
ChargingVoltage() & ChargingCurrent() ≠ 0 sent & RES_OR = F
& DCDIV pin = T & SHDN pin = F & CHARGE_INHIBITED = F &
CHG_FLT = F
IPPC = On & Timer/4(Pre-Charge) = Started & CHG = T &
ALARM_INHIBITED = F
7
TTIMEOUT = Done (Dead Battery or Loss of SMBus)
ICHG = Off & All Timers Reset & CHG = F
8
RES_HOT = T & RES_UR = F [See ChargeStatus()]
ICHG or IPPC = Off & CHG_FLT = T, Timer = Paused.
9
RES_HOT = F [See ChargeStatus()]
ICHG or IPPC = On & CHG_FLT = F, Timer = Resume.
10
Or
DCDIV pin = F
RES_OR = T [Bat Removed, See ChargeStatus()]
SHDN pin = T
VUVD = T
POR_RESET = T [See ChargeMode()]
ICHG or IPPC = Off & All Timers = Reset & CHG_FLT = F & CHG = F &
ALARM_INHIBITED = F & CHARGE_INHIBITED = F
11
VBOV = T [Battery Overvoltage]
PWM stopped. Timers remain running.
12
VBOV = F
PWM restarted.
13
Or
RESET_TO_ZERO = T [See ChargeMode()]
CHARGE_INHIBIT = T [See ChargeMode()]
ICHG or IPPC = Off & All Timers = Reset & CHG_FLT = F & CHG = F
14
Or
AlarmWarning() command is sent by Smart Battery over SMBus
with any of the following bits set to True:
OVER_CHARGED_ALARM
TERMINATE_CHARGE_ALARM
Reserved ALARM
OVER_TEMPERATURE_ALARM
ICHG or IPPC = Off. & All Timers = Reset & CHG = F &
ALARM_INHIBITED = T
(ALARM_INHIBITED bit is found in ChargeStatus())
Note: VCHG is active in all charge states except for nickel batteries which operate in constant current mode.
4110 F04
PWM
STOPPED
(BATTERY OVP)
OFF
(OVERTEMPERATURE)
ANY
CHARGE
STATE
RESUME
CURRENT
STATE
12
9
11
8
PRE-CONDITIONING
CHARGE
WAKE UP
CHARGE
1
4
(BATTERY
FULL)
2
4, 7, 13, 14
3
ANY
CHARGE
STATE
10
RESET
OFF
5 (BAD BATTERY)
6 (BATTERY RECHARGE REQUEST)
BULK
CHARGE
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