- 您现在的位置：买卖IC网 > PDF目录16023 > LTC1729CS8-8.2 (Linear Technology)IC CTRLR BATT CHRGR LI-ION 8SOIC PDF资料下载
参数资料
| 型号： | LTC1729CS8-8.2 |
| 厂商： | Linear Technology |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR BATT CHRGR LI-ION 8SOIC |
| 标准包装： | 100 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
LTC1729 Series
APPLICATIO S I FOR ATIO
State Machine
The state machine is responsible for the following items:
1. When to start and stop the charger. The internal timer
must be initialized every time a new battery is installed
or when the input supply is applied.
2. When a battery is installed, the state machine must
determine if it is a new battery or if the previous battery
has been reinstalled.
3. When a deeply discharged battery is installed, trickle
charge conditioning must take place before the full
charge current.
The state machine diagram is shown in Figure 6. Note that
the Charge state includes the Precondition state, the
charger “ON” state and the Reset mode.
Reset and Hold are the two modes that will cause the
charger to stop charging (V C pin pulled low) and ignore the
state machine. The Reset mode clears all the timers and
forces the state machine to begin in the Charge state
(STATUS pin pulled low). This mode is only activated
momentarily at power-up or when the NTC pin is below the
Reset threshold. The other interrupt condition is called the
Hold mode. When the voltage on the NTC pin is above
2.79V (cold) or below 0.405V (hot), the state machine is
locked in the present state until the NTC pin voltage returns
to the proper range. While in the Hold mode, the charging
is disabled and the timers are frozen.
The charger is enabled only during the charger “ON” state.
There are three ways that the state machine can exit the
charger “ON” state. The first is for a 3-hour time-out which
is denoted as the time > t MAX transition to the Done state.
CHARGE
RESET MODE
I BAT = 0
STATUS = PULL-DOWN
V C = PULL-DOWN
V BAT < V MIN
V BAT > V MIN
NOTE: FOR STATUS
PULL-DOWN = HARD:
PRECONDITION
I BAT = 12mA
V BAT > V MIN
CHARGER “ON”
I BAT = 1.3mA
FOR CURRENT > C/10
PULL-DOWN = 50 μ A:
STATUS = PULL-DOWN V
V C = PULL-DOWN
t MAX = 1HR
BAT < V MIN
STATUS = PULL-DOWN
V C = OPEN
t MAX = 3HR
FOR CURRENT < C/10 FOR 3SEC
V BAT < V MAX
FOR MORE THAN 1SEC
PAUSE
I BAT = 0
STATUS = PULL-DOWN
V BAT > V MAX
V BAT < V MAX
FOR MORE THAN 1SEC
TIME > t MAX
DONE
I BAT = 0
STATUS = OPEN
V C = PULL-DOWN
V BAT > V MAX
V C = PULL-DOWN
V BAT > V MAX
FOR MORE THAN 1SEC
NO BAT
I BAT = 0
STATUS = OPEN
V C = PULL-DOWN
V NTC > 2.79V OR
V NTC < 0.405V
FOR MORE THAN 1SEC
V NTC < 2.79V AND
V NTC > 0.405V
HOLD MODE
I BAT = 0
STATUS = PREVIOUS STATUS
V C = PULL-DOWN
1729 F06
Figure 6. State Diagram
9
相关PDF资料 |
PDF描述 |
|---|---|
| IDCP1813ER180M | INDUCTOR POWER 18UH 0.84A SMD |
| M3CWK-3440K | IDC CABLE - MKC34K/MC34F/MPL34K |
| RBC06DREI-S93 | CONN EDGECARD 12POS .100 EYELET |
| M3UYK-5006J | IDC CABLE - MKS50K/MC50G/MPD50K |
| M3URK-5006J | IDC CABLE - MKS50K/MC50G/MPR50K |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1730EGN-4 | 功能描述:IC BATT PULSE CHRGR LI-ION16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC1730EGN-4#PBF | 功能描述:IC BATT PULSE CHRGR LI-ION16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC1730EGN-4#TR | 功能描述:IC BATT PULSE CHRGR LI-ION16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC1730EGN-4#TRPBF | 功能描述:IC BATT PULSE CHRGR LI-ION16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC1730ES8-4.2 | 功能描述:IC BATT PULSE CHRGR LI-ION 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。