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LTC4255CG#TRPBF

更新时间： 2024-11-28 20:03:23
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
16页 209K
描述
LTC4255 - Quad Network Power Controller with I<sup>2</sup>C Compatible Interface; Package: SSOP; Pins: 28; Temperature Range: 0&deg;C to 70&deg;C

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中文翻译

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LTC4255CG#TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SSOP包装说明：SSOP,
针数：28Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17其他特性：ADDITIONAL -48V NEGATIVE SUPPLY REQUIRED
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-G28JESD-609代码：e3
长度：10.2 mm湿度敏感等级：1
信道数量：4功能数量：1
端子数量：28最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：2 mm
最大供电电压 (Vsup)：13.2 V最小供电电压 (Vsup)：10.8 V
标称供电电压 (Vsup)：12 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：5.3 mm
Base Number Matches：1

LTC4255CG#TRPBF 数据手册

 浏览型号LTC4255CG#TRPBF的Datasheet PDF文件第2页浏览型号LTC4255CG#TRPBF的Datasheet PDF文件第3页浏览型号LTC4255CG#TRPBF的Datasheet PDF文件第4页浏览型号LTC4255CG#TRPBF的Datasheet PDF文件第5页浏览型号LTC4255CG#TRPBF的Datasheet PDF文件第6页浏览型号LTC4255CG#TRPBF的Datasheet PDF文件第7页 
LTC4255  
Quad Network Power  
2
Controller with I C Compatible Interface  
U
FEATURES  
DESCRIPTIO  
The LTC®4255 is a quad –48V network power controller  
with independent relay drivers and I2C compatible inter-  
face. Each channel can be turned on and off via software  
control, while providing short-circuit protection, open-  
circuit detection, and power good indication. The short-  
circuit protection includes a current foldback feature to  
reduce power dissipation in the switch during shorts and  
start-up.  
■
Controls Four Independent –48V Power Channels  
Each Channel has Separate Relay Drivers, ON/OFF  
Control, Short-Circuit Protection with Current  
Foldback, Open-Circuit Detection, and Power Good  
Indication  
■
Programmed via I2CTM Compatible Interface  
Five Bit Programmable Digital Address Allows  
Control of up to 32 LTC4255s (128 Channels)  
Interrupt on FAULT Output can be used to Eliminate  
Software Polling  
■
■
■
■
■
■
The serial interface allows up to 128 channels to be  
controlled with only two digital lines. A FAULT output can  
be used as an interrupt line to eliminate fault detection by  
software polling.  
Programmable Current Limit and Open-Circuit  
Duration Periods  
Programmable Latchoff or Autoretry after Short-  
Circuit Faults  
Programmable Autoretry Duty Cycle  
External switches and current sense resistors allow easy  
scaling of current and power dissipation levels and pro-  
vide the maximum protection against voltage and current  
spikes.  
U
APPLICATIO S  
The LTC4255 is available in the 28-pin SSOP package.  
■
IP Phone Systems  
DTE Power Distribution  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
I2C is a trademark of Philips Electronics N.V.  
■
U
TYPICAL APPLICATIO  
12V  
0.1µF  
V
CC  
SCL  
SDA  
FAULT  
AD0  
AD1  
AD2  
AD3  
AD4  
RELAY1  
RELAY2  
LTC4255  
RELAY3  
RELAY4  
DGND AGND  
V
SENSE1 GATE1 OUT1 SENSE2 GATE2 OUT2 SENSE3 GATE3 OUT3 SENSE4 GATE4 OUT4  
EE  
R
100k  
100k  
100k  
100k  
S1  
0.33Ω  
0.1µF  
–48V  
Q1  
R
S2  
0.33Ω  
Q2  
R
S3  
0.33Ω  
Q3  
R
S4  
0.33Ω  
Q1, Q2, Q3, Q4: FDC3612  
RELAYS: V23079 SERIES  
4255 TA01  
Q4  
4255f  
1
1234567...16

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