ISL3293E

The Intersil ISL3293E, ISL3294E, ISL3295E, ISL3296E, ISL3297E, ISL3298E are ±16.5kV HBM ESD Protected (7kV IEC61000 contact), 3.0V to 5.5V powered, single transmitters for balanced communication using the RS-485 and RS-422 standards. These drivers have very low bus currents (±40mA), so they present less than a "1/8 unit load" to the RS-485 bus. This allows more than 256 transmitters on the network without violating the RS-485 specification's 32 unit load maximum, and without using repeaters.

Hot Plug circuitry ensures that the Tx outputs remain in a high impedance state while the power supply stabilizes.

The ISL3293E, ISL3294E, ISL3296E, ISL3297E utilize slew rate limited drivers which reduce EMI, and minimize reflections from improperly terminated transmission lines, or from unterminated stubs in multidrop and multipoint applications. Drivers on the ISL3295E and ISL3298E are not limited, so they can achieve the 20Mbps data rate. All versions are offered in Industrial and Extended Industrial (-40°C to +125°C) temperature ranges.

A 26% smaller footprint is available with the ISL3296E, ISL3297E, ISL3298E's TDFN package. These devices also feature a logic supply pin (VL) that sets the switching points of the DE and DI inputs to be compatible with a lower supply voltage in mixed voltage systems.

For companion single RS-485 receivers in micro packages, please see the ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E data sheet.

ISL3293E 应用

• Clock Distribution
• High Node Count Systems
• Space Constrained Systems
• Security Camera Networks
• Building Environmental Control/Lighting Systems
• Industrial/Process Control Networks

ISL3293E 特点

• High ESD Protection on RS-485 Outputs ±16.5kV HBM
  • IEC61000-4-2 Contact Test Method ±7kV
  • Class 3 ESD Level on all Other Pins >8kV HBM
• Specified for +125°C Operation (VCC ≤ 3.6V Only)
• Logic Supply Pin (VL) Eases Operation in Mixed Supply Systems (ISL3296E through ISL3298E Only)
• Hot Plug - Tx Outputs Remain Three-state During Power-up
• Low Tx Leakage Allows >256 Devices on the Bus
• High Data Rates up to 20Mbps
• Low Quiescent Supply Current 150μA (Max)
  • Very Low Shutdown Supply Current 1μA (Max)
• -7V to +12V Common Mode Output Voltage Range (VCC ≤ 3.6V Only)
• Current Limiting and Thermal Shutdown for Driver Overload Protection (VCC ≤ 3.6V Only)
• Tri-statable Tx Outputs
• 5V Tolerant Logic Inputs When VCC ≤5V
• Pb-Free (RoHS Compliant)

ISL3293E 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL3293EFHZ-T	量产	Full-Range Ind	6 Ld SOT-23 T+R	2	1.20
ISL3293EIHZ-T	量产	工业级	6 Ld SOT-23 T+R	2	0.87

ISL3293E 应用技术支持与电子电路设计开发资源下载

1. ISL3293E 数据资料 datatSheet 下载.PDF
2. Interface 接口电路产品选型指南 . pdf