規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Translator Type | Voltage Level |
| Channel Type | Bidirectional |
| Number of Circuits | 1 |
| Channelsper Circuit | 2 |
| Voltage - VCCA | 0.8 V ~ 5.5 V |
| Voltage - VCCB | 2.2 V ~ 5.5 V |
| Output Type | Open Drain |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The TCA9617ADGKR is a dual bidirectional buffer designed for I2C and SMBus systems, facilitating communication between devices operating at different voltage levels. It supports voltage-level translation between 0.8 V to 5.5 V, making it ideal for interfacing modern low-voltage microcontrollers with higher voltage peripheral devices. The device ensures reliable data transfer by providing bidirectional communication without the need for a directional control signal.
Key features include its ability to handle clock stretching, arbitration, and synchronization, fundamental for I2C operations. It offers high-speed operation up to 1 MHz, supporting both standard-mode and fast-mode I2C applications. The TCA9617ADGKR comes in a small, space-saving VSSOP (DGK) package, beneficial for compact designs. It also includes built-in protection features like ESD protection, thermal shutdown, and voltage translation lockout, ensuring robust operation in various environments. This makes the TCA9617ADGKR an excellent choice for designers requiring efficient and reliable I2C communication across different voltage domains in consumer electronics, industrial, and automotive applications.
Key features include its ability to handle clock stretching, arbitration, and synchronization, fundamental for I2C operations. It offers high-speed operation up to 1 MHz, supporting both standard-mode and fast-mode I2C applications. The TCA9617ADGKR comes in a small, space-saving VSSOP (DGK) package, beneficial for compact designs. It also includes built-in protection features like ESD protection, thermal shutdown, and voltage translation lockout, ensuring robust operation in various environments. This makes the TCA9617ADGKR an excellent choice for designers requiring efficient and reliable I2C communication across different voltage domains in consumer electronics, industrial, and automotive applications.
Equivalent
The TCA9617ADGKR is a buffer/driver designed for I2C and SMBus applications. Equivalent products include the PCA9617A from NXP, the P82B96 from NXP, and the LTC4311 from Analog Devices. These alternatives provide similar functionality for level shifting and buffering in I2C systems. Always verify specific features and compatibility requirements for your application.
Features
The TCA9617ADGKR is a buffer/driver designed for I2C-bus and SMBus applications. It features bidirectional voltage-level translation and is optimized for open-drain and push-pull applications. Key features include:
1. Voltage-Level Translation: Supports translation between 0.8 V to 5.5 V on the A-side and 2.2 V to 5.5 V on the B-side, facilitating communication between different logic levels.
2. High-Speed Operation: Capable of handling communication speeds up to 1 MHz, making it suitable for fast I2C-bus applications.
3. Hot Swap Capability: Allows for the insertion and removal of I2C devices without rebooting the system, ensuring seamless device replacement and upgrades.
4. Isolation of Capacitive Load: Effectively isolates bus capacitance, which allows for longer bus lengths by accommodating higher capacitance levels on each side of the buffer.
5. Bidirectional Data Transfer: Ensures data integrity by allowing signals to pass in both directions while maintaining signal integrity across the bus.
6. Low Voltage Operation: Supports low-voltage operation, making it compatible with a wide range of devices and reduced power consumption.
The TCA9617ADGKR is ideal for applications requiring robust and reliable I2C communication across differing voltage domains.
1. Voltage-Level Translation: Supports translation between 0.8 V to 5.5 V on the A-side and 2.2 V to 5.5 V on the B-side, facilitating communication between different logic levels.
2. High-Speed Operation: Capable of handling communication speeds up to 1 MHz, making it suitable for fast I2C-bus applications.
3. Hot Swap Capability: Allows for the insertion and removal of I2C devices without rebooting the system, ensuring seamless device replacement and upgrades.
4. Isolation of Capacitive Load: Effectively isolates bus capacitance, which allows for longer bus lengths by accommodating higher capacitance levels on each side of the buffer.
5. Bidirectional Data Transfer: Ensures data integrity by allowing signals to pass in both directions while maintaining signal integrity across the bus.
6. Low Voltage Operation: Supports low-voltage operation, making it compatible with a wide range of devices and reduced power consumption.
The TCA9617ADGKR is ideal for applications requiring robust and reliable I2C communication across differing voltage domains.
Pinout
The TCA9617ADGKR is a bidirectional I2C bus repeater designed to work in various digital systems, including I2C and SMBus applications. It features a total of 8 pins. Here is a concise breakdown of its pin functions:
1. A side (SDAA, SCLA): These are the open-drain I2C bus pins on the A-side, which are connected to the lower voltage I2C bus.
2. B side (SDAB, SCLB): These are the open-drain I2C bus pins on the B-side, used for connection to a higher voltage I2C bus.
3. VCC(A): Power supply for A-side circuitry.
4. VCC(B): Power supply for B-side circuitry, which can operate at a higher voltage level than VCCA.
5. GND: Ground pin, common for both sides.
6. EN: Enable pin used to activate or deactivate the repeating function.
This device isolates capacitance and allows for level shifting between I2C buses operating at different voltages, enhancing communication reliability.
1. A side (SDAA, SCLA): These are the open-drain I2C bus pins on the A-side, which are connected to the lower voltage I2C bus.
2. B side (SDAB, SCLB): These are the open-drain I2C bus pins on the B-side, used for connection to a higher voltage I2C bus.
3. VCC(A): Power supply for A-side circuitry.
4. VCC(B): Power supply for B-side circuitry, which can operate at a higher voltage level than VCCA.
5. GND: Ground pin, common for both sides.
6. EN: Enable pin used to activate or deactivate the repeating function.
This device isolates capacitance and allows for level shifting between I2C buses operating at different voltages, enhancing communication reliability.
Manufacturer
The TCA9617ADGKR is manufactured by Texas Instruments (TI), an American technology company that designs and produces semiconductors and various integrated circuits. Texas Instruments is known for its significant role in the electronics industry, producing components that are used in a wide array of devices, from consumer electronics to industrial equipment. TI is particularly recognized for its expertise in analog technology, embedded processing, and wireless technologies. The company operates globally and serves various markets, including automotive, industrial, personal electronics, communications equipment, and enterprise systems.
Application
The TCA9617ADGKR is a dual bidirectional I2C buffer designed for applications requiring reliable level shifting and signal buffering. It is commonly used in:
1. I2C Communication Systems: Enhances signal integrity over longer distances or with capacitive loads.
2. Level Translation: Converts signals between different voltage levels, useful in mixed-voltage environments.
3. Consumer Electronics: Facilitates communication between components operating at different voltage levels.
4. Embedded Systems: Connects microcontrollers with peripherals requiring different I2C voltage levels.
5. Industrial Automation: Ensures robust I2C communication in electrically noisy environments.
These applications benefit from improved signal integrity and voltage level compatibility provided by the TCA9617ADGKR.
1. I2C Communication Systems: Enhances signal integrity over longer distances or with capacitive loads.
2. Level Translation: Converts signals between different voltage levels, useful in mixed-voltage environments.
3. Consumer Electronics: Facilitates communication between components operating at different voltage levels.
4. Embedded Systems: Connects microcontrollers with peripherals requiring different I2C voltage levels.
5. Industrial Automation: Ensures robust I2C communication in electrically noisy environments.
These applications benefit from improved signal integrity and voltage level compatibility provided by the TCA9617ADGKR.
Package
The TCA9617ADGKR is an I2C bus repeater from Texas Instruments, commonly available in a VSSOP (Very Thin Shrink Small Outline Package) package type. Specifically, it comes in an 8-pin VSSOP package, which is compact and suitable for space-constrained applications.
