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TCA9509DGKR

Name: TCA9509DGKR
Rating: 4.7 (12 reviews)

IC REDRIVER I2C 1CH 8VSSOP

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Mfr。パート #TCA9509DGKR
パッケージ VSSOP-8
データシート
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仕様

Package	Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus	Active
Type	Buffer, ReDriver
Applications	I²C
Input	2-Wire Bus
Output	2-Wire Bus
DataRate(Max)	400kHz
NumberofChannels	1
Capacitance-Input	6.5 pF
Voltage-Supply	2.7V ~ 5.5V
Current-Supply	3mA
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	8-TSSOP, 8-MSOP (0.118, 3.00mm Width)

概要

Description

The TCA9509DGKR is a dual I2C bus buffer/level shifter designed to facilitate communication between devices operating at different voltage levels on the I2C bus. It features two separate channels, allowing bidirectional communication and maintaining signal integrity in mixed-voltage environments.
This device supports a wide supply voltage range from 1.8V to 5.5V, making it versatile for various applications. It operates at a maximum data rate of 1 MHz, ensuring reliable performance for standard I2C communication.
Key features include open-drain output configuration, adjustable pull-up resistor compatibility, and low standby current consumption. The TCA9509 is commonly used in systems where 3.3V and 5V components need to communicate, such as in IoT devices, sensor networks, and mixed-signal applications.
Overall, the TCA9509DGKR is an essential component for designers needing to integrate components with differing voltage levels while ensuring compatibility and efficient data transfer.

Features

The TCA9509DGKR is a dual bidirectional I²C bus buffer designed to extend the range and improve the reliability of I²C communication. Key features include:
1. Bidirectional Buffering: Supports two I²C buses, allowing for communication between devices with different voltage levels.
2. Voltage Level Translation: Operates with a wide supply voltage range from 1.8 V to 5.5 V, making it suitable for various applications.
3. Low Power Consumption: Features low standby current, enhancing efficiency in battery-powered devices.
4. High-Speed Operation: Supports fast-mode I²C speeds up to 1 MHz.
5. Active Pull-Up Capability: Ensures reliable signal integrity over longer distances.
6. Thermal Shutdown Protection: Protects the device from overheating.
7. Compact Package: Available in a 16-pin HTQFP package, saving board space.
These features make the TCA9509DGKR suitable for numerous applications, including microcontroller interfaces, sensor interconnections, and I²C bus extension in complex systems.

Package

The TCA9509DGKR is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package). This compact package type is designed for applications requiring space-efficient solutions while maintaining reliable electrical performance.

Pinout

The TCA9509DGKR is an I2C bus level shifter with a pin count of 16. It is designed to operate between two different voltage levels, allowing communication between devices that operate at different I2C logic levels.
Pin Functions:
1. VCCA (Pin 1): Supply voltage for the low side (2.3V to 5.5V).
2. VCCB (Pin 2): Supply voltage for the high side (up to 5.5V).
3. GND (Pin 3): Ground connection.
4. SCLB (Pin 4): High-side SCL input.
5. SCL (Pin 5): Low-side SCL output.
6. SDAB (Pin 6): High-side SDA input.
7. SDA (Pin 7): Low-side SDA output.
8. A0 (Pin 8): Address pin (for I2C address configuration).
9. A1 (Pin 9): Address pin (for I2C address configuration).
10. OA (Pin 10): Open drain output for interrupt.
11-16: Additional pins serve as I/O and configuration for the device operations and functions.
Note: For specific applications and detailed functions, consult the datasheet.

Manufacturer

The TCA9509DGKR is manufactured by Texas Instruments (TI), a leading technology company known for its semiconductor and integrated circuit solutions. Founded in 1930 and headquartered in Dallas, Texas, Texas Instruments is recognized for its innovations in analog, embedded processing, and digital signal processing. The company serves a wide range of industries, including automotive, industrial, communications, and consumer electronics, providing products that enhance performance and efficiency. TI is particularly well-known for its development of microcontrollers, processors, and various analog components, making it a key player in the electronics sector.

Application

The TCA9509DGKR is an I2C bus buffer and level shifter. Its primary application areas include:
1. I2C Bus Extension: Enhancing signal integrity over long distances.
2. Voltage Level Translation: Interfacing devices operating at different voltage levels (e.g., 3.3V and 5V).
3. Multi-Master Systems: Facilitating communication in systems with multiple I2C masters.
4. Noise Susceptible Environments: Improving reliability in electrically noisy settings.
These applications are common in embedded systems, consumer electronics, and industrial automation.

Equivalent

The TCA9509DGKR is a dual I2C bus buffer and level shifter. Equivalent products include:
1. PCA9509
2. TCA9548A
3. TCA9517
4. TCA9406
These alternatives may vary in features like number of channels or voltage levels, so it's important to check the specific requirements for your application.