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參數(shù)資料
| 型號： | LTC4355IS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-16 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 221K |
| 代理商： | LTC4355IS |
LTC4355
1
4355f
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Positive High Voltage
Ideal Diode-OR with Input Supply
and Fuse Monitors
The LTC4355 is a positive voltage ideal diode-OR controller
that drives two external N-channel MOSFETs. Forming the
diode-OR with N-channel MOSFETs instead of Schottky
diodes reduces power consumption, heat dissipation and
PC board area.
With the LTC4355, power sources can easily be ORed
together to increase total system reliability. The LTC4355
can diode-OR two positive supplies or the return paths of
two negative supplies, such as in a – 48V system.
In the forward direction the LTC4355 controls the voltage
drop across the MOSFET to ensure smooth current transfer
from one path to the other without oscillation. If a power
source fails or is shorted, fast turnoff minimizes reverse
current transients.
Power fault detection indicates if the input supplies are
not in regulation, the inline fuses are blown, or the
voltages across the MOSFETs are greater than the fault
threshold.
+48V Diode-OR
■
Replaces Power Schottky Diodes
■
Controls N-Channel MOSFETs
■
0.5s Turn-Off Time Limits Peak Fault Current
■
Wide Operating Voltage Range: 9V to 80V
■
Smooth Switchover without Oscillation
■
No Reverse DC Current
■
Monitors VIN, Fuse, and MOSFET Diode
■
Available in DFN-14 (4mm × 3mm) and
SSOP-16 Packages
■
High Availability Systems
■
AdvancedTCA (ATCA) Systems
■
+48V and –48V Distributed Power Systems
■
Telecom Infrastructure
Power Dissipation vs Load Current
4355 TA01
LTC4355
GND
GATE1
GATE2
IN1
OUT
IN2
MON1
MON2
SET
12.7k
340k
12.7k
340k
7A
22k
GREEN LEDs
PANASONIC LN1351C
7A
GND
FDB3632
TO
LOAD
VIN1 = +48V
VIN2 = +48V
VDSFLT
FUSEFLT1
FUSEFLT2
PWRFLT1
PWRFLT2
CURRENT (A)
0
POWER
DISSIPATION
(W)
1
2
3
4
5
6
246
8
4355 TA02
10
DIODE (MBR10100)
FET (FDB3632)
POWER
SAVED
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4355IS#PBF | 功能描述:IC IDEAL DIODE-OR 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份，工業(yè)/汽車，大電流開關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開關(guān):是 延遲時間 - 開啟:100ns 延遲時間 - 關(guān)閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4355IS#PBF | 制造商:Linear Technology 功能描述:Power Management IC |
| LTC4355IS#TRPBF | 功能描述:IC IDEAL DIODE-OR 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份，工業(yè)/汽車，大電流開關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開關(guān):是 延遲時間 - 開啟:100ns 延遲時間 - 關(guān)閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4355ISPBF | 制造商:Linear Technology 功能描述:Ideal Diode-OR Controller 9-80V SOIC16 |
| LTC4357CDCB#PBF | 制造商:Linear Technology 功能描述:CONTROLLER DIODE SMD DFN-6 4357 制造商:Linear Technology 功能描述:IDEAL DIODE CONTROLLER, 80V, DFN-6; IC Function:Ideal Diode Controller; Supply Voltage Min:9V; Supply Voltage Max:80V; Operating Temperature Min:0C; Operating Temperature Max:70C; Digital IC Case Style:DFN; No. of Pins:6 ;RoHS Compliant: Yes |
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