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参数资料
| 型号： | LTC4352IMS#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO12 |
| 封装： | LEAD FREE, PLASTIC, MSOP-8 |
| 文件页数： | 1/16页 |
| 文件大小： | 194K |
| 代理商： | LTC4352IMS#TRPBF |
LTC4352
1
4352f
TYPICAL APPLICATION
DESCRIPTION
Low Voltage Ideal Diode
Controller with Monitoring
The LTC4352 creates a near-ideal diode using an external
N-channel MOSFET. It replaces a high power Schottky
diode and the associated heat sink, saving power and
board area. The ideal diode function permits low loss
power ORing and supply holdup applications.
The LTC4352 regulates the forward voltage drop across
the MOSFET to ensure smooth current transfer in diode-OR
applications. A fast turn-on reduces the load voltage droop
during supply switch-over. If the input supply fails or is
shorted, a fast turn-off minimizes reverse currents.
The controller operates with supplies from 2.9V to 18V.
For lower voltages, an external supply is needed at the
VCC pin. Power passage is disabled during undervoltage
or overvoltage conditions. The controller also features an
open MOSFET detect circuit that ags excessive voltage
drop across the pass transistor in the on state. A REV pin
enables reverse current, overriding the diode behavior
when desired.
2.9V to 18V Ideal Diode
FEATURES
APPLICATIONS
n Low Loss Replacement for Power Diode
n Controls N-Channel MOSFET
n 0V to 18V Supply ORing or Holdup
n 0.5μs Turn-On and Turn-Off Time
n Undervoltage and Overvoltage Protection
n Open MOSFET Detect
n Status and Fault Outputs
n Hot Swappable
n Reverse Current Enable Input
n 12-Pin MSOP and DFN (3mm × 3mm) Packages
n Redundant Power Supplies
n Supply Holdup
n Telecom Infrastructure
n Computer Systems and Servers
VCC
UV
OV
REV
LTC4352
STATUS
FAULT
MOSFET ON
STATUS
0.1μF*
TO LOAD
2.9V TO 18V
Si7336ADP
*OPTIONAL
FAULT
0.1μF
4352 TA01
CPO
VIN
SOURCE
GATE
GND
OUT
Power Dissipation vs Load Current
LOAD CURRENT (A)
0
POWER
DISSIPATION
(W)
2.5
2.0
1.5
1.0
0.5
4.0
3.0
3.5
2
46
8
4352 TA01b
10
DIODE (SBG1025L)
MOSFET (Si7336ADP)
POWER
SAVED
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4352HMS#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12 |
| LTC4352HDD#PBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12 |
| LTC4352HDD#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12 |
| LTC4357HMS8#PBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| LTC4357HDCB#TRMPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4353CDE#PBF | 功能描述:IC OR CTRLR N-CH 2CH 16DFN 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) |
| LTC4353CDE#TRPBF | 制造商:Linear Technology 功能描述:MOSFET DRVR 2-OUT 16-Pin DFN EP T/R |
| LTC4353CMS#PBF | 功能描述:IC OR CTRLR N-CH 2CH 16MSOP 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) |
| LTC4353CMS#TRPBF | 制造商:Linear Technology 功能描述:MOSFET DRVR 2-OUT 16-Pin MSOP T/R |
| LTC4353IDE#PBF | 功能描述:IC OR CTRLR N-CH 2CH 16DFN 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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