力佳胜供应收发器SN75LBC184P资料 RS485接口转换驱动器

*器件  应有尽有  一网打尽  LED方案设计  *技术支持
 
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商品详情:
 
SN75LBC184P应用 TI**RS485接口收发器 串行接口转换驱动器芯片
 
描述

 
The SN75LBC184 and SN65LBC184 are differential data line transceivers in the trade-standard footprint of the SN75176 with built-in protection against high-energy noise transients. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable over most existing devices. Use of these circuits provides a reliable low-cost direct-coupled (with no isolation transformer) data line interface without requiring any external components.
The SN75LBC184 and SN65LBC184 can withstand overvoltage transients of 400-W peak (typical). The conventional combination wave called out in IEC 61000-4-5 simulates the overvoltage transient and models a unidirectional surge caused by overvoltages from switching and secondary lightning transients.
A biexponential function defined by separate rise and fall times for voltage and current simulates the combination wave. The standard 1.2 μs/50 μs combination waveform is shown in Figure 1 and in the test description in Figure 15.
The device also includes additional desirable features for party-line data buses in electrically noisy environment applications including industrial process control. The differential-driver design incorporates slew-rate-controlled outputs sufficient to transmit data up to 250 kbps. Slew-rate control allows longer unterminated cable runs and longer stub lengths from the main backbone than possible with uncontrolled and faster voltage transitions. A unique receiver design provides a fail-safe output of a high level when the inputs are left floating (open circuit). The SN75LBC184 and SN65LBC184 receiver also includes a high input resistance equivalent to one-fourth unit load allowing connection of up to 128 similar devices on the bus.
The SN75LBC184 is characterized for operation from 0°C to 70°C. The SN65LBC184 is characterized from –40°C to 85°C.
 
特性

 
Integrated Transient Voltage Suppression
ESD Protection for Bus Terminals Exceeds:Circuit Damage Protection of 400-W Peak (Typical) Per IEC 61000-4-5
±30 kV IEC 61000-4-2, Contact Discharge
±15 kV IEC 61000-4-2, Air-Gap Discharge
±15 kV EIA/JEDEC Human Body Model
Controlled Driver Output-Voltage Slew Rates Allow Longer Cable Stub Lengths
250-kbps in Electrically Noisy Environments
Open-Circuit Fail-Safe Receiver Design
1/4 Unit Load Allows for 128 Devices Connected on Bus
Thermal Shutdown Protection
Power-Up/-Down Glitch Protection
Each Transceiver Meets or Exceeds the Requirements of TIA/EIA-485 (RS-485) and ISO/IEC 8482:1993(E) Standards
Low Disabled Supply Current 300 μA Max
Pin Compatible With SN75176
Applications:
Industrial Networks
Utility Meters
Motor Control
 
公司简介:
深圳市力佳胜电子有限公司(RIGACHIP)主要业务为电子产品方案开发及经营国内外**电子元器件配套，成立于2009年,为广大LED照明及移动电源类客户提供**方案及贴心技术支持,省除开发及调试的繁琐程序,**工程师一对一指导.所提供电子元器件均为**正品，不售假货，同等质量价格较低为目标，在大陆市场占有较高评价。

电子产品开发设计方案有:LED照明驱动方案,3W,5W-7W,18W-14W,50W,100W,150W大小功率LED照明,可用于球泡灯,日光灯,天花灯,吸顶灯,射灯及大功率路灯,投光灯,泛光灯等灯具.同时开发移动电源/电池充电器/**充等1A,1.**,2.1A充电方案,产品技术成熟,可提供*技术支持.

电子元器件代理经销**有：TI德州，NS国半，MICROCHIP微芯，TOSHIBA东芝，OB昂宝，MAX美信，ST意法半导体，ON安森美，JRC，ROHM罗姆，VISHAY威萨等.

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