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MAXIM - ±50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver - Automotive MAX3250

±50V Isolated, 3.0V to 5.5V, 250kbps, 2 Tx/2 Rx, RS-232 Transceiver 此图片只做参考用
真图请以实物为准
库存状况
  • 库存数量: 163
  • 包装规格:
  • 最小订单量:1
  • 多重订单量:1
  • 单位价格(不含税):CNY 29.00
数量:
价格
    数量单位价格(不含税)
    1-24CNY 29.00
    25-49CNY 27.55
    50-99CNY 26.10
    100-249CNY 24.65
  • 制造商:MAXIM
  • 库存编号:1616424
  • 商品型号:MAX3250CAI
  • RoHS胁从产品:
  • 备注:
  • 产品描述:
The MAX3250 is a 3.0V to 5.5V powered, ±50V isolated EIA/TIA-232 and V.28/V.24 communications interface with high data-rate capabilities. The MAX3250 is a dual die part that operates with up to ±50V difference between the RS-232 side and the logic side (ISOCOM to GND). This makes the device ideal for operation in noisy conditions with high common-mode voltages. This feature prevents damage to the device if RS-232 lines are inadvertently short-circuited to a +24V or ±48V power bus.

The MAX3250 is powered by a single 3V to 5.5V supply on the logic side. Power is transferred from the logic side to the isolated side by ±100V external capacitors.

The MAX3250 has two receivers (Rx) and two drivers (Tx) and is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels. The transceivers have a proprietary low-dropout transmitter output stage, delivering true RS-232 performance from a 3V to 5.5V supply with a dual charge pump. The device features an active-low FAULT open-drain output to signal an excessive isolated-side voltage condition on any of the RS-232 inputs. This output can drive an alarm LED or can be monitored by the processor to prevent operation under these conditions. The receiver outputs are high impedance in shutdown, allowing multiple interfaces (IrDA, RS-232, RS-485) to be connected to the same UART.

The MAX3250 is available in a space-saving 28-pin SSOP package.

Key Features
±50V Isolation
20μA Supply Current in Shutdown
250kbps Guaranteed Data Rate
Active-Low FAULT Output
High-Impedance Transmitter and Receiver Outputs in Shutdown
Space-Saving SSOP Package
Inductorless/Transformerless Design Simplifies EMI Compliance
Low-Cost Replacement for Opto-Isolated Transceivers
Meets EIA/TIA-232 Specifications Down to 3.0V
 
Applications/Uses
Diagnostic Ports
Industrial Control
PC-to-Router Connections
Point-of-Sale Equipment
Programmable Logic Controllers
Telecom Equipment

Diagram

MAX3250: Typical Operating Circuit
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