參數(shù)資料
型號(hào)： 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)： 7/52頁
文件大?。?/td> 450K
代理商： LTC4110EUHF#TR
LTC4110
15
4110fb
OPERATION
Figure 3. Standard Li-Ion 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 & VBAT < VBC
RES_OR = F & DCDIV pin = T & SHDN pin = F &
CHARGE_INHIBITED = F & CHG_FLT=F &
ChargingVoltage() ≠ 0 & ChargingCurrent() ≠ 0
IPPC & Timer/4(PreCond) = Started & CHG = T & ALARM_INHIBITED = F
(RES_OR = F = Bat Inserted -> See ChargeStatus() )
(POR_RESET -> See ChargeMode()
2VBAT > VBC
IPPC = Off & ICHG = On & Timer/4(PreCond) = Stopped & Timer(Bulk) = Started.
3
C/5 = T
Timer(Bulk) = Stopped & Timer/4(Top Off) = Started
4
Timer/4(Top Off = done [Battery is full]
ICHG = Off & CHG = F (Typical Full State)
5
Timer/4(PreCond) = done before VBAT > VBC
IPPC = Off & CHG_FLT = T & CHG = F
6
Timer(Bulk) = done before C/5 = T
ICHG = Off & CHG_FLT = T & CHG = F
7
Or
RESET_TO_ZERO = T [See ChargeMode()]
CHARGE_INHIBIT=T [See ChargeMode()]
ICHG or IPPC = Off & All Timers = Reset & CHG_FLT = F & CHG = F
8
RES_HOT = T & RES_UR = F [See ChargeStatus()]
ICHG or IPPC = Off & CHG_FLT = T, Timers paused.
9
RES_HOT = F [See ChargeStatus()]
ICHG or IPPC = On & CHG_FLT = F, Timers 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 & ALARM_INHIBITED = F & CHG_FLT =
F & CHG = F & CHARGE_INHIBITED = F
11
Or
VAR = T [AutoRestart]
ChargingVoltage() & ChargingCurrent() ≠ 0
(The battery needs another charge cycle or Smart Battery has requested to
start another cycle.)
12
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())
13
ChargingVoltage() or ChargingCurrent() = 0 sent
ICHG or IPPC = Off & CHG = F
14
VBOV = T [Battery Overvoltage]
PWM stopped. Timers remain running.
15
VBOV = F
PWM restarted.
Note: For all charge states, VCHG is always active.
4110 F03
PWM
STOPPED
(BATTERY OVP)
STOP
CHARGE
(OVERTEMPERATURE)
ANY
CHARGE
STATE
RESUME
CHARGE
STATE
15
9
14
8
ANY
CHARGE
STATE
PRE-CONDITIONING
CHARGE
STOP
CHARGE
TOP-OFF
CHARGE
7, 12, 13
10
4 (BATTERY FULL)
1
23
RESET
5 (PRE-CONDITIONING FAULT)
11 (BATTERY NEEDS RECHARGE)
6 (BULK TIME FAULT)
BULK
CHARGE
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