描述

New Original MAX3238 Series MAX3238IPWR RS-232 Interface IC 3-5.5V Multichannel Line Drvr/Rcvr

I MAX3238IPWR Product Introduction

MAX3238IPWR is a multi-channel RS-232 line driver/receiver integrated circuit (IC) launched by TI. It adopts TSSOP-28 package, supports 3V to 5.5V wide voltage operating range, has high data rate, strong anti-interference ability and industrial temperature adaptability. The following is a detailed description of its core features and application areas:

II Core Functions and Technical Parameters

1. RS-232 interface support: Comply with TIA/EIA-232-F standard, provide 5 drivers and 3 receivers, support full-duplex communication, suitable for serial data transmission.
2. Power supply and voltage characteristics:
—Operating voltage range: 3V to 5.5V, compatible with 3.3V and 5V systems.
—Quiet current: 2mA (typical value), low power design is suitable for battery-powered devices.
—Dual charge pump circuit: Only four external small capacitors are required to achieve single power supply, simplifying circuit design.
3. Data rate and performance:
—Maximum data rate: 250kbps, meeting the needs of medium and low-speed communication (such as industrial control, medical equipment).
—Driver output slew rate: Maximum 30V/μs, ensuring signal integrity.
4. ESD protection: Pins (including GND) provide ±15kV human body model (HBM) electrostatic discharge protection, enhancing the device’s anti-interference ability, suitable for harsh industrial environments.
5. Package and temperature range:
—Package: 28-TSSOP (0.173 inches, 4.40mm wide), surface mount type, saving PCB space.
—Operating temperature: -40℃ to 85℃, adaptable to extreme environments (such as outdoor equipment, automotive electronics).

III Application areas

1. Industrial control: RS-232 interface for PLC (programmable logic controller) and industrial automation equipment to achieve stable data transmission.
2. Communication equipment: Serial communication modules for network devices such as routers and switches, supporting remote management and debugging.
3. Medical electronics: Reliable data transmission of medical equipment (such as monitors and diagnostic instruments) must meet anti-interference and wide temperature requirements.
4. Automotive electronics: On-board diagnostic systems (OBD-II) and ECU (electronic control unit) communications must withstand high temperature and vibration environments.
5. Consumer electronics: Serial interface expansion for peripherals such as laptops and printers, supporting compatibility with older devices.