- 您现在的位置：买卖IC网 > PDF目录16310 > LTC4067EDE#PBF (Linear Technology)IC USB POWER MANAGER 12-DFN PDF资料下载
参数资料
| 型号： | LTC4067EDE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 14/20页 |
| 文件大小： | 0K |
| 描述： | IC USB POWER MANAGER 12-DFN |
| 标准包装： | 91 |
| 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： | 5.5V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFDFN 裸露焊盘 |
| 供应商设备封装： | 12-DFN（4x3） |
| 包装： | 管件 |
LTC4067
OPERATIO
if the battery is below the recharge threshold. There is
approximately 3°C of temperature hysteresis associated
with each of the input comparators. If the NTC pin is tied
to GND, thermistor quali?ed charging is disabled.
current pulses are designed to cause an LED connected
from the ? C ? H ? R ? G pin to a positive supply voltage to visibly
?ash, indicating to the user that there is a problem, as well
as allowing a microcontroller to detect a fault condition
within 300μs.
Fault Conditions
The ? C ? H ? R ? G pin provides information as to the charging
status, indicating an active charge cycle with a strong
open-drain pull down at the ? C ? H ? R ? G pin. NTC faults and
bad battery faults are indicated with serrated pulses; this
is described in more detail under the heading Fault Condi-
tions in the Applications Information section.
When the battery is being charged, the ? C ? H ? R ? G pin is pulled
low by an internal N-channel MOSFET. When the charge
cycle enters voltage mode charging and the charge current
Overvoltage Protection
The OVI input is provided to sense potentially hazardous
voltages at the input in case an unregulated wall adapter
is applied. If an overvoltage condition is detected the OVP
pin is driven high to turn off an external PMOS transistor
inserted in series with the IN pin to disconnect the high
voltage from the LTC4067.
Table 2 lists recommended P-channel MOSFETs to use
with the LTC4067.
is reduced below I CC-CHG /10, the ? C ? H ? R ? G indicates that the
charge cycle is nearly complete by switching to a Hi-Z
state. Also when the battery voltage exceeds the OUT
voltage and the input supply is removed, or the LTC4067
is put into suspend or shutdown modes, the ? C ? H ? R ? G pin
Table 2. Recommended OVP Transistors
PART NUMBER
IRLML6402
FDR8508P
DESCRIPTION
P-channel 16V
Dual P-channel 16V
is forced into a high impedance state. If a bad battery
is detected, or if an NTC temperature fault is detected,
charging is halted and the ? C ? H ? R ? G pin switches to a series
If the OVP pin is high, the power path from IN to OUT is
disabled.
of serrated open-drain pull down pulses. These serrated
4067f
14
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4068XEDD-4.2#PBF | IC CHARGER BATT LI-ON 8-DFN |
| LTC4085EDE#PBF | IC USB POWER MANAGER 14-DFN |
| A3DDH-4418M | IDC CABLE - AKR44H/AE44M/AKR44H |
| 3-1906015-6 | CA 2.0MM OFNR 50/125,LC SEC GRN |
| RCM18DRYI | CONN EDGECARD 36POS DIP .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4068-4.2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Standalone Linear Li-Ion Battery Charger with Programmable Termination |
| LTC4068EDD-4.2 | 功能描述:IC BATT CHARGER W/PROG TERM 8DFN 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 |
| LTC4068EDD-4.2#PBF | 功能描述:IC CHARGER BATT LI-ON 8-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 |
| LTC4068EDD-4.2#TR | 功能描述:IC BATT CHARGER W/PROG TERM 8DFN 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 |
| LTC4068EDD-4.2#TRPBF | 功能描述:IC BATT CHARGER W/PROG TERM 8DFN 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 |
发布紧急采购，3分钟左右您将得到回复。