参数资料
| 型号： | LTC4412IS6#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC PWR PATH CNTRLR TSOT23-6 |
| 标准包装： | 1 |
| 系列： | PowerPath™ |
| 应用： | 手持/移动设备 |
| FET 型： | P 沟道 |
| 输出数： | 1 |
| 内部开关： | 无 |
| 延迟时间 - 开启： | 110µs |
| 延迟时间 - 关闭： | 13µs |
| 电源电压： | 2.5 V ~ 28 V |
| 电流 - 电源： | 16µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | TSOT-23-6 |
| 包装： | 标准包装 |
| 产品目录页面： | 1338 (CN2011-ZH PDF) |
| 其它名称： | LTC4412IS6#TRMPBFDKR |
LTC4412
TYPICAL APPLICATIO S
Multiple Battery Charging
Figure 6 illustrates an application circuit for automatic
dual battery charging from a single charger. Whichever
battery has the lower voltage will receive the charging
current until both battery voltages are equal, then both will
be charged. When both are charged simultaneously, the
higher capacity battery will get proportionally higher cur-
rent from the charger. For Li-Ion batteries, both batteries
will achieve the float voltage minus the forward regulation
voltage of 20mV. This concept can apply to more than two
batteries. The STAT pins provide information as to which
batteries are being charged. For intelligent control, the
CTL pin input can be used with a microcontroller and
back-to-back MOSFETs as shown in Figure 4. This allows
complete control for disconnection of the charger from
High Side Power Switch
Figure 7 illustrates an application circuit for a logic con-
trolled high side power switch. When the CTL pin is a
logical low, the LTC4412 will turn on the MOSFET. Be-
cause the SENSE pin is grounded, the LTC4412 will apply
maximum clamped gate drive voltage to the MOSFET.
When the CTL pin is a logical high, the LTC4412 will turn
off the MOSFET by pulling its gate voltage up to the supply
input voltage and thus deny power to the load. The
MOSFET is connected with its source connected to the
power source. This disables the drain-source diode from
supplying voltage to the load when the MOSFET is off. Note
that if the load is powered from another source, then the
drain-source diode can forward bias and deliver current to
the power supply connected to the V IN pin.
either battery.
P-CHANNEL
MOSFET
BATTERY
CHARGER
INPUT
0.1 μ F
1
2
3
LTC4412
V IN SENSE
GND GATE
CTL STAT
6
5
4
*
*
V CC
470k
TO LOAD OR
PowerPath
BAT1 CONTROLLER
STATUS IS HIGH
WHEN BAT1 IS
CHARGING
TO LOAD OR
SUPPLY
INPUT
0.1 μ F
LOGIC
INPUT
*
LTC4412
1 6
V IN SENSE
2 5
GND GATE
3 4
CTL STAT
4412 F07
*DRAIN-SOURCE DIODE OF MOSFET
C OUT
TO LOAD
PowerPath
BAT2 CONTROLLER
Figure 7. Logic Controlled High Side Power Switch
1
2
3
LTC4412
V IN SENSE
GND GATE
CTL STAT
6
5
4
V CC
470k
4412 F06
STATUS IS HIGH
WHEN BAT2 IS
CHARGING
*DRAIN-SOURCE DIODE OF MOSFET
Figure 6. Automatic Dual Battery Charging
from Single Charging Source
4412fa
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
相关PDF资料 |
PDF描述 |
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| LTC4413EDD-1#PBF | IC IDEAL DIODE DUAL 10-DFN |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4413EDD | 制造商:Linear Technology 功能描述:Dual Ideal Diodes 10-Pin DFN EP |
| LTC4413EDD#PBF | 功能描述:IC IDEAL DIODE DUAL 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:- 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC4413EDD#PBF | 制造商:Linear Technology 功能描述:Power Management ICs |
| LTC4413EDD#TR | 制造商:Linear Technology 功能描述:Dual Ideal Diodes 10-Pin DFN EP T/R |
| LTC4413EDD#TRPBF | 功能描述:IC IDEAL DIODE DUAL 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:- 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
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