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LTC2870IUFD#PBF

In Stock: 7,253

LTC2870IUFD#PBF offers efficient communication for automotive systems

LTC2870IUFD#PBF Information

Description

Here's a concise introduction to the LTC2870IUFD#PBF: The LTC2870IUFD#PBF is a single transmitter/receiver IC from Analog Devices, designed for automotive applications. It combines two RS232 transceivers and one RS485 transceiver in a compact 28-pin QFN package. This versatile chip supports high-speed data transfer rates of up to 20Mbps (RS485) and 500kbps (RS232), making it suitable for various industrial automation, process control, power management, and telecommunications applications. The LTC2870IUFD#PBF features automatic termination resistor selection, half- or full-duplex RS485 switching, and high ESD protection up to ±26kV. Additionally, its 3V to 5.5V supply voltage range and low power consumption make it an attractive option for battery-powered devices or low-power systems.

Features

According to the product information, the features of the LTC2870IUFD#PBF are:

  • One RS485 and two RS232 transceivers
  • 3V to 5.5V supply voltage
  • 20Mbps RS485 and 500kbps RS232 data rates
  • Automatic selection of integrated RS485 (120Ω) and RS232 (5kΩ) termination resistors
  • Half- or full-duplex RS485 switching
  • High ESD protection: ±26kV
  • Logic loopback mode

These features make it suitable for various applications such as industrial automation, process control, power management, and telecommunications.

Package

The package type of LTC2870IUFD#PBF is QFN28.

Pinout

The LTC2870IUFD#PBF has a pin count of 28 (QFN28) and is a single transmitter/receiver RS-232/RS-422/RS-485 automotive IC. The pin functions include:

  • VCC: Power supply input
  • GND: Ground
  • TXD: Transmitter data output
  • RXD: Receiver data input
  • RTS: Request to send output
  • CTS: Clear to send input
  • DTR: Data terminal ready output
  • DSR: Data set ready input
  • RxD+: Receiver data input (RS-485)
  • RxD-: Receiver data input (RS-485)
  • Txd+: Transmitter data output (RS-485)
  • Txd-: Transmitter data output (RS-485)

This IC is suitable for industrial automation, process control, power management, and telecommunications applications.

Manufacturer

The manufacturer of the LTC2870IUFD#PBF is Analog Devices, a leading global semiconductor company that specializes in designing, manufacturing, and marketing high-performance semiconductors for various industries, including industrial automation, process control, power management, and telecommunications.

Applications

According to the product information, the application areas of LTC2870IUFD#PBF include:

  • Industrial automation
  • Process control
  • Power management
  • Telecommunications

It is particularly well-suited for applications requiring high-speed, low power, and low voltage operation, as well as for interfacing with RS485 and RS422 communication protocols.

Equivalent

The equivalent products of LTC2870IUFD#PBF are:

  • Texas Instruments SN65DS485
  • Maxim Integrated MAX4881
  • STMicroelectronics STM32F103VET6

These products offer similar functionality, such as RS-232/RS-422/RS-485 transceiver, high-speed data transmission, and low power consumption.

Specifications

Product Category RS-232 Interface IC Mounting Style SMD/SMT
Function Transceiver Data Rate 20 Mb/s
Number of Drivers 2 Driver Number of Receivers 2 Receiver
Duplex Half/Full Duplex Supply Voltage - Max 5.5 V
Supply Voltage - Min 3.3 V Operating Supply Current 3.3 mA
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 85 C
ESD Protection 26 kV Operating Supply Voltage 3 V to 5.5 V
Output Current 250 mA Product RS-232 Transceivers
Product Type RS-232 Interface IC Propagation Delay Time 20 ns
Protocol Supported RS-232, RS-422, RS-485 Shutdown With Shutdown
Factory Pack Quantity 73 Subcategory Interface ICs
Type Multiprotocol Transceiver Unit Weight 0.007055 oz
Package/Case QFN-28

LTC2870IUFD#PBF FAQs

1.Q: How does the LTC2862 handle different communication modes?

A: It supports half-duplex (RS485) and full-duplex (RS232/RS422) modes via configurable driver/receiver enables.

2.Q: What is the thermal resistance of the LTC2862’s QFN package?

A: The thermal resistance (θJA) is typically 28°C/W, depending on PCB layout and airflow conditions.

3.Q: What related parts are comparable to the LTC2862?

A: Similar devices include Analog Devices’ LTC2852 (lower data rate) and LTC2872 (higher channel count).

4.Q: Does the LTC2862 comply with industry certification standards?

A: Yes, it is RoHS compliant and adheres to RS232/RS485/RS422 interface standards.

5.Q: What package does the LTC2862 use?

A: It comes in a 28-lead QFN package (4mm x 5mm x 0.75mm) with an exposed pad for thermal management.

6.Q: What are the recommended operating conditions for the LTC2862?

A: Operate at 3V to 5.5V supply, -40°C to 85°C ambient temperature, and ensure logic levels match the selected supply voltage.

7.Q: What are the absolute maximum ratings for the LTC2862?

A: Absolute maximum ratings include a supply voltage of 6V, input voltage of ±15V (RS232) or ±12V (RS485/RS422), and an operating temperature range of -40°C to 85°C.

8.Q: What is the functional block diagram of the LTC2862?

A: The block diagram includes dual RS232 transceivers, RS485/RS422 drivers/receivers, control logic, and power management. Refer to the datasheet for detailed internal structure.

9.Q: What applications is the LTC2862 transceiver suitable for?

A: It is ideal for industrial automation, multipoint data acquisition, and communication systems requiring RS232/RS485/RS422 interfaces.

10.Q: What are the key features of the Analog Devices LTC2862 transceiver?

A: The LTC2862 supports RS232, RS422, and RS485 standards, offers 20Mbps data rates, operates from 3V to 5.5V, and integrates 2 transmitters and 2 receivers in a 28-pin QFN package.

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