This article mainly introduces the application of ChuanTu Microelectronics products in the PLC field. In PLCs, ChuanTu products are used for the isolation and communication of analog input/output and digital input/output, such as the CA-IS37XX series isolators and CA-IF48 series 485 interfaces, all of which meet the precise requirements of motor control.
ChuanTu Microelectronics provides a variety of high-performance chips for PLC (Programmable Logic Controller) applications, covering key modules such as communication transceivers, isolation interfaces, and digital isolation. Below are the main recommended solutions and features:
1. Communication Interface Chips
RS232 Chip:
CA-IF43232EN meets the requirements of TIA/EIA-232-F standards and provides an electrical interface between asynchronous communication controllers and serial port connectors. It supports a maximum data rate of 250kbps, with a driver output (DOUT1/DOUT2) slew rate of up to 30V/μs. Package: SOIC16, TSSOP16, operating temperature –40°C to 125°C.
High-performance RS485/422 transceiver chips:
CA-IF4888HS, ESD protection 30KV, with automatic bus polarity correction function. During hot swapping, this device detects and corrects bus polarity within 76ms of bus idle.
CA-IF4805HS, CA-IF4805FS, maximum 30KV ESD, no additional system-level protection components required, ±15V common mode input.
CA-IF4820HS, CA-IF4820FS, maximum 30KV ESD, 20M rate.
CA-IF4850HS, CA-IF4850FS, 30KV ESD, 50M rate.
CAN Chip:
CA-IF1051HS, CAN transceiver with ±70V fault protection, 5Mbps transmission rate, receiver input common mode range (CMR) up to ±30V, far exceeding ISO11898 specifications, making it suitable for CAN bus networks with significant ground potential differences between nodes.
CA-IF1051S, ±58V fault protection, for high-speed CANFD networks, common mode range (CMR) ±30V.
CA-IF1051VS, CAN transceiver with ±58V fault protection and independent logic power supply VIO, common mode range (CMR) up to ±30V, with an independent logic power supply pin (VIO), eliminating the need for additional level shifters.
3.3V powered CAN bus transceivers: CA-IF1030S, CA-IF1034S, CA-IF1033S, Icc current below 1μA, includes driver explicit timeout function and bus fault protection.
CA-IF4420S, CAN transceiver with polarity control function, supports bus fault protection voltage ±58V, with a polarity control port POL to control the bus polarity, including protection features such as undervoltage protection, TXD explicit timeout protection, and thermal shutdown protection.
2. Isolation Interface Chips
Isolation CAN Transceiver:
CA-IS1044S isolated controller area network (CAN) transceiver, 3750VRMS (60s) isolation voltage, provides current limiting protection, thermal protection, and ±58V overvoltage protection.
General-purpose isolation CAN transceivers: CA-IS3050CU, CA-IS3050CG, CA-IS3052CG, CA-IS3050CW, CA-IS3052CW, typical CMTI of ±150kV/μs, common mode input range (CMR) ±30V.
Isolation CAN chips with isolated power supply:
CA-IS2062A, ultra-compact isolated CAN transceiver with built-in isolation DC-DC, 5Mbps transmission rate (CANFD), ±42V fault voltage protection, LGA16 ultra-compact package;
Integrated isolation DC-DC isolation CAN chips CA-IS2062VW, CA-IS2062W, CA-IS3062W, CA-IS3062VW
Isolation RS485 transceivers:
CA-IS3082WX, CA-IS3086WX, 5kVRMS isolation voltage, typical CMTI of ±150kV/μs
CA-IS3082CWX, enhanced isolation half-duplex RS485 transceiver, high electrical isolation level, capable of meeting the stringent requirements of industrial applications.
Isolation RS485 chips with isolated power supply: CA-IS3092W, CA-IS3092VW, CA-IS3098W, CA-IS3098VW, CA-IS2092W, CA-IS2092VW, CA-IS2092A, internally integrated isolated DC-DC converter, eliminating the need for external isolated power supply.
Isolation DI/DO interfaces:
8-channel isolated digital input receivers CA-IS3980S, CA-IS3980P, CA-IS3988P for 24V digital input in industrial fields, can be configured as input units for Type 1, Type 2, or Type 3 industrial sensors or field switches with just a few peripheral components, each channel can be configured as sourcing or sinking input.
3. High-Performance Analog Chips
High-precision voltage reference sources:
CA-HP6050S, CA-HP6041S, CA-HP6025S, low drift voltage reference sources, temperature drift 1/2/2.5ppm/°C, initial accuracy 0.0005.
Isolation ADC:
CA-IS1306M25G, 5kVRMS electrical isolation, capable of achieving 16-bit resolution at a data throughput rate of 78.1kSPS, with a typical signal-to-noise ratio (SNR) of 85dB. The external clock frequency range is from 5MHz to 21MHz, providing flexibility for synchronization.
Isolation operational amplifiers:
CA-IS1200G, CA-IS1200U, CA-IS1300B25G (current detection)
CA-IS1311G (voltage detection) is a high-precision enhanced isolation operational amplifier optimized for voltage detection. Low offset and gain errors, along with related temperature drift, maintain measurement accuracy across the full operating temperature range.
4. Standard Digital Isolation Chips
2-channel digital isolators:
CA-IS372x series, supports 150Mbps rate, CMTI up to ±150kV/µs, suitable for high-speed signal isolation (CA-IS3720HS, CA-IS3720CHS, CA-IS3721HS, CA-IS3721CHS, CA-IS3720CHS, CA-IS3722CHG).
4-channel digital isolators:
CA-IS374x is a high-performance four-channel digital isolator with precise timing characteristics and low power consumption (CA-IS3741CHW, CA-IS3741HW, CA-IS3742LB, CA-IS3742HW).
6-channel digital isolators:
CA‐IS376x is a high-performance six-channel digital isolator with precise timing characteristics and low power consumption, featuring Schmitt trigger inputs for high noise immunity (CA-IS3760HN, CA-IS3762HW, CA-IS762HN, CA-IS3761CHW, CA-IS3762CHW, CA-IS3762CHN).
Other recommendations:
High-speed LVDS line receiver: SC5109, 400Mbps, low power consumption, low EMI, high ESD wide power supply voltage.
Temperature sensor: Minyuan single bus & I2C interface temperature chip T117 series, accuracy ±0.1/±0.5.
For more chips in PLC such as DCDC, LDO, UART, Flyback, ADC, DAC, EEPROM, watchdog, EtherCAT, etc., please feel free to contact us via phone or WeChat.
Recommendations for domestic chips in industrial automation.