ISL3298EMRTEP

16kV ESD Protected, +125°C, 3.0V to 5.5V, TDFN Packaged, Low Power RS-485/RS-422 Transmitter

Product Status: Mass Production

OVERVIEW

The ISL3298EMRTEP is a ±16.5kV HBM ESD Protected (7kV IEC61000 contact), 3.0V to 5.5V powered, single transmitter for balanced communication using the RS-485 and RS-422 standards. This driver has very low bus currents (±40mA); therefore, it presents 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 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 driver on the ISL3298EMRTEP is not limited, so it can achieve a 16Mbps data rate and is offered in the -55°C to +125°C temperature range.

This 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 a companion single RS-485 receiver in micro packages, see the ISL3282EMRTEP.

KEY FEATURES

  • Specifications per DLA VID V62/10602
  • Full mil-temp electrical performance from -55°C to +125°C
  • Controlled baseline with one wafer fabrication site and one assembly/test site
  • Full homogeneous lot processing in wafer fab
  • No combination of wafer fabrication lots in assembly
  • Full traceability through assembly and test by date/trace code assignment
  • Enhanced process change notification
  • Enhanced obsolescence management
  • Eliminates need for up-screening a COTS component
  • 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
  • Hot plug - Tx output remains tri-state during power-up
  • Low Tx leakage allows >256 devices on the Bus
  • High data rates: up to 16Mbps
  • 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 output
  • 5V tolerant logic input when VCC ≤5V
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    APPLICATIONS

  • Clock distribution
  • High node count systems
  • Space constrained systems
  • Security camera networks
  • Building environmental control/lighting systems
  • Industrial/process control networks

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL3298EMRTEP
Basic Information
生产状态
Mass Production
关键特性
Ruggedized
Tx数量
1
总线上允许的设备
256
半/全双工
N/A
高ESD保护
Yes-IEC61000
热插拔
Yes
数据率
16 Mbps
供电电压Vcc (最小值) (V)
3
供电电压Vcc (最大值) (V)
5.5
受限压摆率
No
Tx/Rx启用
Yes
IS启用/禁用
155 µA
SHDN ICC
1 µA
VL引脚
Yes
资质级别
Standard
供电电压Vcc范围 (V)
3.0 to 5.5
CAN 采样
YES
温度范围
-55 to +125

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