Le blog de l'entreprise Mingjiada Electronics Supply ADI LTC4313 Hot Swappable 2-Wire Bus Buffer, Ensuring Highly Reliable Communication In I²C/SMBus Systems

Mingjiada Electronics Supply ADI LTC4313 Hot Swappable 2-Wire Bus Buffer, Ensuring Highly Reliable Communication In I²C/SMBus Systems

In complex electronic systems such as servers, communications equipment and industrial control systems, as the number of devices connected to the I²C/SMBus bus continues to increase, bus capacitance rises sharply, which can easily lead to issues such as signal rise times exceeding specifications, unstable communication and even bus lock-ups. At the same time, the insertion and removal of boards and maintenance whilst the system remains operational place stringent demands on bus isolation and fault recovery capabilities.

Shenzhen Mingjiada Electronics Co., Ltd. — a company with long-standing expertise in the field of signal chains and interface devices — now supplies the ADI LTC4313 series of hot-swappable two-wire bus buffers. With features such as bidirectional buffering, high noise margin, level conversion and bus lockout recovery, these devices ensure highly reliable I²C communication for computing, networking and data storage systems.

LTC4313 Key Parameter Overview
The LTC4313 is a hot-swappable 2-wire bus buffer that provides bidirectional buffering whilst maintaining low offset voltage and a high noise margin of up to 0.3·VCC. Its key electrical and packaging specifications are as follows:
Supply voltage range: 2.9 V to 5.5 V (LTC4313-1/2); the LTC4313-3 supports extended bus voltages of 1.5 V, 1.8 V and 2.5 V
Communication rates: Compatible with I²C, I²C Fast Mode (400 kHz) and the SMBus standard
Bus capacitance isolation: Input capacitance of just 10 pF effectively isolates backplane and daughter-card capacitance, extending bus load capacity
Hot-swap protection: SDA/SCL are pre-charged to 1 V during insertion to minimise bus disturbance
Blocked bus recovery: 45 ms timeout detection, automatically disconnects and generates up to 16 clock pulses to release a blocked bus
ESD protection: ±4 kV Human Body Model (HBM) ESD robustness
Package types: 8-pin MSOP and 8-pin (3 mm × 3 mm) DFN packages
Operating temperature: Commercial-grade (0 °C to 70 °C) and industrial-grade (-40 °C to 85 °C) options available

The ADI LTC4313 series available from Mingjiada Electronics includes multiple versions and package options. Common models include:
LTC4313CDD-1
LTC4313CDD-2
LTC4313CDD-3
LTC4313CMS8-1
LTC4313CMS8-2
LTC4313CMS8-3
LTC4313IDD-1
LTC4313IDD-2
LTC4313IDD-3
LTC4313IMS8-1
LTC4313IMS8-2
LTC4313IMS8-3

Typical Applications
Thanks to its high level of integration and automotive-grade reliability, the LTC4313 is widely used in the following high-availability systems:
Communications Equipment: Hot-swap and capacitive buffering of line cards in ATCA systems, telecoms base stations, routers and switches
Servers and Data Centres: PMBus power management, Board Management Controller (BMC) bus extension, high-density sensor networks
Industrial and Storage: Isolated multi-board I²C communication in industrial automation control cabinets and data storage systems
Computing Systems: Mixed voltage level conversion for multi-I/O cards and peripherals across different power domains

As the demands for hot-swap capability and bus reliability in server, storage and communications systems continue to rise, ADI’s LTC4313 hot-swappable, two-wire bus buffer will continue to play a vital role. Mingjiada Electronics will continue to supply the ADI LTC4313 series, helping customers to shorten procurement cycles and enhance supply chain stability. For specifications, stock availability, quotations and sample support regarding the LTC4313, please contact the Mingjiada Electronics sales team.
Company URL: https://www.integrated-ic.com