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参数资料
| 型号： | LTC4412ES6#TR |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR LOWLOS PWRPATH TSOT23-6 |
| 标准包装： | 2,500 |
| 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： | 带卷 (TR) |
| 其它名称： | LTC4412ES6TR |
LTC4412
Low Loss PowerPath TM
Controller in ThinSOT
FEATURES
DESCRIPTIO
■
■
■
■
■
■
■
■
■
■
Very Low Loss Replacement for Power Supply
OR’ing Diodes
Minimal External Components
Automatic Switching Between DC Sources
Simplifies Load Sharing with Multiple Batteries
Low Quiescent Current: 11 μ A
3V to 28V AC/DC Adapter Voltage Range
2.5V to 28V Battery Voltage Range
Reverse Battery Protection
Drives Almost Any Size MOSFET for Wide Range of
Current Requirements
MOSFET Gate Protection Clamp
The LTC ? 4412 controls an external P-channel MOSFET to
create a near ideal diode function for power switchover or
load sharing. This permits highly efficient OR’ing of mul-
tiple power sources for extended battery life and low self-
heating. When conducting, the voltage drop across the
MOSFET is typically 20mV. For applications with a wall
adapter or other auxiliary power source, the load is auto-
matically disconnected from the battery when the auxiliary
source is connected. Two or more LTC4412s may be
interconnected to allow load sharing between multiple
batteries or charging of multiple batteries from a single
charger.
■ Manual Control Input
■ Low Profile (1mm) ThinSOT TM Package
APPLICATIO S
■ Cellular Phones
■ Notebook and Handheld Computers
■ Digital Cameras
■ USB-Powered Peripherals
■ Uninterruptable Power Supplies
■ Logic Controlled Power Switch
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
PowerPath and ThinSOT are trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
The wide supply operating range supports operation from
one to six Li-Ion cells in series. The low quiescent current
(11 μ A typical) is independent of the load current. The gate
driver includes an internal voltage clamp for MOSFET
protection.
The STAT pin can be used to enable an auxiliary P-channel
MOSFET power switch when an auxiliary supply is
detected. This pin may also be used to indicate to a
microcontroller that an auxiliary supply is connected. The
control (CTL) input enables the user to force the primary
MOSFET off and the STAT pin low.
The LTC4412 is available in a low profile (1mm) ThinSOT
package.
LTC4412 vs Schottky Diode
Forward Voltage Drop
1
WALL
ADAPTER
INPUT
1N5819
FDN306P
CONSTANT
R ON
BATTERY
CELL(S)
1
2
3
LTC4412
V IN SENSE
GND GATE
CTL STAT
6
5
4
C OUT
V CC
470k
4412 F01
TO LOAD
STATUS OUTPUT
LOW WHEN WALL
ADAPTER PRESENT
LTC4412
CONSTANT
VOLTAGE
SCHOTTKY
DIODE
Figure 1. Automatic Switchover of Load Between a Battery and a Wall Adapter
0
0.02
FORWARD VOLTAGE (V)
0.5
4412 F01b
4412fa
1
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相关代理商/技术参数 |
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| LTC4412ES6TRMPBF | 制造商:Linear Technology 功能描述:Automatic Pwr Path Controller LTC4412ES6 |
| LTC4412HVIS6 | 制造商:Linear Technology 功能描述:Power Controller 6-Pin TSOT-23 |
| LTC4412HVIS6#PBF | 制造商:Linear Technology 功能描述:IDEAL DIODE CNTRL 36V 6TSOT2 制造商:Linear Technology 功能描述:IDEAL DIODE CNTRL, 36V, 6TSOT23 |
| LTC4412HVIS6#TR | 功能描述:IC CONTROLLER LOW LOSS TSOT23-6 RoHS:否 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 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) |
| LTC4412HVIS6#TRM | 功能描述:IC CONTROLLER LOW LOSS TSOT23-6 RoHS:否 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 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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