• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

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.

特性

• Integrated Transient Voltage Suppression
• ESD Protection for Bus Terminals Exceeds:
  • ±30 kV IEC 61000-4-2, Contact Discharge
  • ±15 kV IEC 61000-4-2, Air-Gap Discharge
  • ±15 kV EIA/JEDEC Human Body Model
• Circuit Damage Protection of 400-W Peak (Typical) Per IEC 61000-4-5
• 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