参数资料
型号: LTC4110EUHF#PBF
厂商: Linear Technology
文件页数: 15/52页
文件大小: 0K
描述: IC BATTERY BACKUP MANAGER 38-QFN
标准包装: 52
功能: 备份管理
电池化学: 铅酸,锂离子,锂聚合物,镍镉,镍氢,超级电容器
电源电压: 4.5 V ~ 19 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 38-WFQFN 裸露焊盘
供应商设备封装: 38-QFN(5x7)
包装: 管件
产品目录页面: 1341 (CN2011-ZH PDF)
LTC4110
OPERATION
PWM
STOPPED
RESET
10
ANY
CHARGE
7, 12, 13
(BATTERY OVP)
STATE
14
15
1
11 (BATTERY NEEDS RECHARGE)
ANY
CHARGE
STATE
8
RESUME
CHARGE
STATE
9
PRE-CONDITIONING
CHARGE
5 (PRE-CONDITIONING FAULT)
6 (BULK TIME FAULT)
STOP
CHARGE
4 (BATTERY FULL)
STOP
CHARGE
(OVERTEMPERATURE)
2
BULK
CHARGE
3
TOP-OFF
CHARGE
4110 F03
Figure 3. Standard Li-Ion Charge State Diagram (Does Not Include Calibration)
#
1
Logic Event (T = True, F = False) [Notes]
RES_OR = F & DCDIV pin = T & SHDN pin = F &
CHARGE_INHIBITED = F & CHG_FLT = F & V BAT < V BC
Notes and/or Actions (T = True, F = False)
I PPC & Timer/4(PreCond) = Started & CHG = T & ALARM_INHIBITED = F
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Or
Or
Or
Or
Or
Or
Or
Or
Or
Or
RES_OR = F & DCDIV pin = T & SHDN pin = F &
CHARGE_INHIBITED = F & CHG_FLT=F &
ChargingVoltage() ≠ 0 & ChargingCurrent() ≠ 0
V BAT > V BC
C/5 = T
Timer/4(Top Off = done [Battery is full]
Timer/4(PreCond) = done before V BAT > V BC
Timer(Bulk) = done before C/5 = T
RESET_TO_ZERO = T [See ChargeMode()]
CHARGE_INHIBIT=T [See ChargeMode()]
RES_HOT = T & RES_UR = F [See ChargeStatus()]
RES_HOT = F [See ChargeStatus()]
DCDIV pin = F
RES_OR = T [Bat Removed, See ChargeStatus()]
SHDN pin = T
V UVD = T
POR_RESET = T [See ChargeMode()]
V AR = T [AutoRestart]
ChargingVoltage() & ChargingCurrent() ≠ 0
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
ChargingVoltage() or ChargingCurrent() = 0 sent
V BOV = T [Battery Overvoltage]
V BOV = F
(RES_OR = F = Bat Inserted -> See ChargeStatus() )
(POR_RESET -> See ChargeMode()
I PPC = Off & I CHG = On & Timer/4(PreCond) = Stopped & Timer(Bulk) = Started.
Timer(Bulk) = Stopped & Timer/4(Top Off) = Started
I CHG = Off & CHG = F (Typical Full State)
I PPC = Off & CHG_FLT = T & CHG = F
I CHG = Off & CHG_FLT = T & CHG = F
I CHG or IPPC = Off & All Timers = Reset & CHG_FLT = F & CHG = F
I CHG or I PPC = Off & CHG_FLT = T, Timers paused.
I CHG or I PPC = On & CHG_FLT = F, Timers resume.
I CHG or I PPC = Off & All Timers = Reset & ALARM_INHIBITED = F & CHG_FLT =
F & CHG = F & CHARGE_INHIBITED = F
(The battery needs another charge cycle or Smart Battery has requested to
start another cycle.)
I CHG or I PPC = Off & All Timers = Reset & CHG = F & ALARM_INHIBITED = T
(ALARM_INHIBITED bit is found in ChargeStatus())
I CHG or I PPC = Off & CHG = F
PWM stopped. Timers remain running.
PWM restarted.
Note: For all charge states, V CHG is always active.
4110fb
15
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