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参数资料
| 型号： | LTC4075EDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC CHARG BATT LI-ON USB 10DFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.3 V ~ 8 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 带卷 (TR) |
LTC4075/LTC4075X
OPERATIO
? ? ?
The power supply status output ( P W R ) has two states: pull-
down and high impedance. The pull-down state indicates
that power is present at either DCIN or USBIN. This output
is strong enough to drive an LED. If no power is applied at
either pin, the ? P ? W ? R pin is high impedance, indicating that
the LTC4075 lacks suf?cient power to charge the battery.
The pull-down state is capable of sinking up to 10mA.
The USB power status output (USBPWR) has two states:
pull-down and high impedance. The high impedance
state indicates that the LTC4075 is being powered from
the USBIN input. The pull-down state indicates that the
charger is either powered from DCIN or is in a UVLO
Thermal Limiting
An internal thermal feedback loop reduces the programmed
charge current if the die temperature attempts to rise above
a preset value of approximately 105°C. This feature protects
the LTC4075 from excessive temperature and allows the
user to push the limits of the power handling capability of
a given circuit board without risk of damaging the device.
The charge current can be set according to typical (not
worst-case) ambient temperature with the assurance that
the charger will automatically reduce the current in worst-
case conditions. DFN power considerations are discussed
further in the Applications Information section.
condition (see Table 1). The pull-down state is capable of
sinking up to 1mA.
STARTUP
DCIN POWER APPLIED
DCIN POWER
REMOVED
POWER SELECTION
ONLY USB POWER APPLIED
USBIN POWER
REMOVED OR
DCIN POWER
TRICKLE CHARGE
APPLIED
TRICKLE CHARGE
BAT < 2.9V
2.9V < BAT
MODE*
1/10th FULL CURRENT
CHRG STATE: PULLDOWN
BAT > 2.9V
CHARGE
MODE*
1/10th FULL CURRENT
CHRG STATE: PULLDOWN
BAT > 2.9V
CHARGE
BAT < 2.9V
2.9V < BAT
MODE
FULL CURRENT
CHRG STATE: PULLDOWN
I BAT < I TERMINATE
IN VOLTAGE MODE
STANDBY
MODE
MODE
FULL CURRENT
CHRG STATE: PULLDOWN
I BAT < I TERMINATE
IN VOLTAGE MODE
STANDBY
MODE
BAT < 4.1V
NO CHARGE CURRENT
CHRG STATE: Hi-Z
NO CHARGE CURRENT
CHRG STATE: Hi-Z
BAT < 4.1V
ENABLE
DRIVEN LOW
SHUTDOWN
MODE
ENABLE
DRIVEN HIGH
ENABLE
DRIVEN LOW
SHUTDOWN
MODE
ENABLE
DRIVEN HIGH
I DCIN DROPS TO 20 μ A
I USBIN DROPS TO 18 μ A
*LTC4075 ONLY
CHRG STATE: Hi-Z
DCIN POWER
REMOVED
USBIN POWER
REMOVED OR
DCIN POWER
CHRG STATE: Hi-Z
4075 F01
APPLIED
Figure 1. LTC4075 State Diagram of a Charge Cycle
4075Xfa
11
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| LTC4076EDD#TRPBF | IC CHARG BATT LI-ON USB 10DFN |
| LTC4077EDD#TRPBF | IC CHARG BATT LI-ON USB 10DFN |
| LTC4078EDD-2#TRPBF | IC USB POWER MANAGER 10-DFN |
| LTC4080EMSE#TRPBF | IC CHARGER LI-ION 10-MSOP |
| LTC4081EDD#TRPBF | IC USB POWER MANAGER 10-DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4075HVX | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage Dual Input Li-Ion/Polymer Battery Charger |
| LTC4075HVXEDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage Dual Input Li-Ion/Polymer Battery Charger |
| LTC4075HVXEDD#PBF | 功能描述:IC CHARGER LI-ION 10-DFN 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 |
| LTC4075HVXEDD#PBF | 制造商:Linear Technology 功能描述:BATT CHARGER LI ON DUAL 10DFN 制造商:Linear Technology 功能描述:BATT CHARGER, LI ON, DUAL, 10DFN |
| LTC4075HVXEDD#TRPBF | 功能描述:IC CHARGER LI-ION 10-DFN 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 |
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