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参数资料
| 型号： | LTC4096XEDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER LI-ION DL 10-DFN |
| 标准包装： | 121 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 4.25 V ~ 5.5 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： | 管件 |
LTC4096/LTC4096X
OPERATION
The LTC4096 is designed to ef?ciently manage charging a
single-cell lithium-ion battery from two separate voltage
sources: a wall adapter and USB power bus. Using the
constant-current/constant-voltage algorithm, the charger
can deliver up to 1.2A of charge current from the wall
Programming and Monitoring Charge Current
The charge current delivered to the battery from the wall
adapter supply is programmed using a single resistor from
the IDC pin to ground.
adapter supply or up to 1A of charge current from the
USB supply with a ?nal ?oat voltage accuracy of ±0.6%.
The LTC4096 has two internal P-channel power MOSFETs,
R IDC =
1000 V
I CHRG ( DC )
, I CHRG ( DC ) =
1000 V
R IDC
thermal regulation and shut down circuitry. No blocking
diodes or external sense resistors are required.
Power Source Selection
Similarly, the charge current from the USB supply is
programmed using a single resistor from the IUSB pin
to ground.
The LTC4096 can charge a battery from either the wall
adapter input or the USB port input. The LTC4096 automati-
R IUSB =
1000 V
I CHRG ( USB )
, I CHRG ( USB ) =
1000 V
R IUS B
cally senses the presence of voltage at each input. If both
voltage sources are present, the LTC4096 defaults to the
wall adapter source provided suf?cient voltage is present
at the DCIN input. “Suf?cient voltage” is de?ned as:
Charge current out of the BAT pin can be determined at
any time by monitoring the IDC or IUSB pin voltage and
applying the following equations:
? Supply voltage is greater than the UVLO threshold.
? Supply voltage is greater than the battery voltage by
I BAT =
V IDC
R IDC
? 1000 , ( ch arg ing from wall adapter )
30mV (100mV or 150mV rising, 30mV falling).
The power present output pin (PWR) indicates that suf-
?cient input voltage is available. Table 1 describes the
I BAT =
V IUSB
R IUSB
? 1000 , ( ch arg ing from USB sup p l y)
behavior of this status output.
Table 1. Power Source Selection
V USBIN > 4V and
V USBIN > BAT + 30mV
V USBIN < 4V or
V USBIN < BAT + 30mV
V DCIN > 4.2V and
Charger powered from wall adapter source; Charger powered from wall adapter source
V DCIN > BAT + 30mV
V DCIN < 4.2V or
V DCIN < BAT + 30mV
V PWR = V DCIN – R DC-PWR ? I PWR
USBIN current < 25μA
Charger powered from USB source;
V PWR = V USBIN – R USB-PWR ? I PWR
V PWR = V DCIN – R DC-PWR ? I PWR
No charging
PWR: Hi-Z
4096xf
9
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相关代理商/技术参数 |
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| LTC4097 | 制造商:LINER 制造商全称:Linear Technology 功能描述:USB/Wall Adapter Standalone Li-Ion/Polymer Battery Charger |
| LTC4097EDDB | 制造商:LINER 制造商全称:Linear Technology 功能描述:USB/Wall Adapter Standalone Li-Ion/Polymer Battery Charger |
| LTC4097EDDB#PBF | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion/Li-Pol 1200mA 4.2V 12-Pin DFN EP |
| LTC4097EDDB#TRMPBF | 功能描述:IC CHARGER LI-ION/POLY 12-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:2,000 系列:Impedance Track™ 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.4 V ~ 2.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:带卷 (TR) 产品目录页面:1020 (CN2011-ZH PDF) 配用:BQ27350EVM-ND - BQ27350EVM 其它名称:296-21665-2 |
| LTC4097EDDB#TRPBF | 功能描述:IC CHARGER LI-ION/POLY 12-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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