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MAX3535E Evaluation Kit (MAX3535EEVKIT) (MAX3535EEVKIT)

The MAX3535E evaluation kit (EV kit) is a fully assembled and tested PCB that contains a 2500VRMS isolated RS-485/RS-422 transceiver with ESD protection. The EV kit circuit features a differential driver and one receiver. The circuit’s receiver is a 1/8 unit load for the RS-485 bus and communicates up to 1000kbps. The MAX3535E fail-safe circuitry and driver slew-rate features are demonstrated and easily reconfigured.

Additionally, the EV kit features an H-bridge DC-DC converter to power the isolated section of the MAX3535E RS-485/RS-422 circuit. Input power to the circuit is supplied by a +3V to +5.5VDC source. This circuit uses a full-wave rectifier on the unregulated output and provides unregulated voltage to the MAX3535E internal, linear low-dropout (LDO) regulator. Using an H-bridge design minimizes input ripple current and radiated noise. Undervoltage lockout (UVLO) and thermal shutdown provide for a robust, isolated RS-485/RS-422 transceiver circuit and power supply. The surface-mount transformer provides up to 2500VRMS galvanic isolation and the output is powered from a center-tapped, full-wave rectifier circuit to reduce output voltage ripple.

The isolated H-bridge DC-DC converter operation at 420kHz allows the use of ceramic-only output capacitors and a small transformer.

Возможности

  • Designed for 2500VRMS Isolation
  • 1/8 RS-485 Unit Load
  • 1000kbps Full-Duplex RS-485/RS-422 Communication (Configurable for Half Duplex)
  • +3.0V to +5.5VDC Input Range
  • Isolated VCC2 Output
  • Center-Tapped, Full-Wave Rectifier Output
  • 420kHz Switching Frequency
  • Undervoltage Lockout (UVLO) and Thermal Shutdown
  • Low-Cost Integrated-FET H-Bridge Design
  • Fully Assembled and Tested

Файлы

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Используемые компоненты


Производитель: Maxim Integrated
MAX3535EEWI+ MAX3535EEWI+ Цена, руб. Срок поставки Укажите
кол-во:

Интерфейс RS-485/RS-422: 1TX/1RX, 1000 kpbs, 3...5 В, Full Duplex PDF ИНФО
621,50 r
от 3 шт. 544,00 q
от 8 шт. 466,00 q
от 16 шт. 428,00 q
На складе: 1000 шт.
MAX3535EEWI+T MAX3535EEWI+T Цена, руб. Срок поставки Укажите
кол-во:

ИС интерфейса RS-422/RS-485 3-5V 2500Vrms Iso Transceiver; PDF ИНФО
571,00 r
от 3 шт. 500,00 q
от 8 шт. 428,50 q
от 18 шт. 393,50 q
На складе: 2789 шт.
MXL1535EEWI+T MXL1535EEWI+T Цена, руб. Срок поставки Укажите
кол-во:

ИС интерфейса RS-422/RS-485 3-5V 2500VRMS Iso RS-485/RS-422 Tcvr; диапазон данных: 450 kBd; количество драйверов: 1; количество приемников: 1; рабочее напряжение питания: 5 V; рабочий ток источника питания: 13 mA, 70 mA; диапазон рабочей температуры: -40..+ 85 C. PDF ИНФО
474,00 r
На складе: 2979 шт.

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