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PCA9515BDGKR
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PCA9515BDGKR

Product Overview

Category: Integrated Circuit (IC)

Use: Level shifting and voltage translation between different I2C bus voltages

Characteristics: - Bidirectional voltage-level translator for I2C bus - Supports I2C Fast Mode Plus (Fm+) with a maximum frequency of 1 MHz - Compatible with both 2.5V and 3.3V systems - Provides bidirectional buffering and level-shifting for the SDA and SCL lines - Allows voltage translation from 0.9V to 5.5V on both sides of the device - Supports hot insertion - Low standby current consumption

Package: VSSOP-8

Essence: The PCA9515BDGKR is an IC that enables level shifting and voltage translation between different I2C bus voltages, allowing communication between devices operating at different voltage levels.

Packaging/Quantity: The PCA9515BDGKR is available in a VSSOP-8 package and is typically sold in reels of 2500 units.

Specifications

  • Supply Voltage Range: 2.3V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Frequency: 1 MHz
  • Standby Current: 10 µA (typical)
  • Rise/Fall Time: 20 ns (maximum)

Detailed Pin Configuration

The PCA9515BDGKR has the following pin configuration:

___________ SDA -| |- VCC SCL -| |- GND OE -| |- A1 A0 -| |- A2 -| |- -| |- GND -| |- SDAOUT VCC -| |- SCLOUT -----------

Functional Features

  • Bidirectional voltage-level translation: The PCA9515BDGKR allows bidirectional communication between devices operating at different voltage levels on the I2C bus.
  • Hot insertion support: The device supports hot insertion, allowing it to be connected or disconnected while the system is powered.
  • Low standby current consumption: The PCA9515BDGKR has a low standby current consumption of only 10 µA, minimizing power consumption when not actively translating voltages.

Advantages and Disadvantages

Advantages: - Supports bidirectional voltage-level translation - Compatible with both 2.5V and 3.3V systems - Allows voltage translation from 0.9V to 5.5V - Supports high-frequency operation (up to 1 MHz) - Low standby current consumption

Disadvantages: - Limited to I2C bus voltage translation only - Not suitable for applications requiring level shifting between non-I2C interfaces

Working Principles

The PCA9515BDGKR uses a bidirectional voltage-level translator to enable communication between devices operating at different voltage levels on the I2C bus. It provides buffering and level-shifting for the SDA and SCL lines, allowing data transfer between devices with different supply voltages. The device ensures bidirectional voltage translation by utilizing a dual-supply bidirectional voltage-level translator.

Detailed Application Field Plans

The PCA9515BDGKR can be used in various applications where level shifting and voltage translation are required for I2C communication. Some potential application fields include:

  1. Embedded Systems: The PCA9515BDGKR can be used in embedded systems to interface devices operating at different voltage levels on the I2C bus, such as microcontrollers, sensors, and display modules.

  2. Industrial Automation: In industrial automation systems, the PCA9515BDGKR can facilitate communication between devices with different voltage requirements, enabling seamless integration and control.

  3. Consumer Electronics: The device can be utilized in consumer electronics products that rely on I2C communication, such as smartphones, tablets, and smart home devices, to enable compatibility between components operating at different voltage levels.

Detailed and Complete Alternative Models

  1. PCA9306: Similar to the PCA9515BDGKR, the PCA9306 is a bidirectional I2C bus voltage-level translator. It supports voltage translation from 1.2V to 3.3V and is available in various package options.

  2. TXB0108: The TXB0108 is an 8-bit bidirectional voltage-level translator designed for open-drain applications. It supports voltage translation from 1.2V to 3.6V and offers high-speed operation.

  3. BSS138: Although not specifically designed for I2C bus voltage translation, the BSS138 is a popular MOSFET transistor that can be used for level shifting applications. It supports voltage translation between different logic levels and is

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av PCA9515BDGKR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of PCA9515BDGKR:

  1. Q: What is PCA9515BDGKR? A: PCA9515BDGKR is a level-translating I2C-bus repeater that provides bidirectional voltage-level translation between low-voltage (down to 0.9V) and higher-voltage (up to 5.5V) I2C-bus or SMBus applications.

  2. Q: What is the purpose of using PCA9515BDGKR in a technical solution? A: PCA9515BDGKR allows for communication between devices operating at different voltage levels, enabling seamless integration of components with varying voltage requirements in an I2C-bus or SMBus system.

  3. Q: Can PCA9515BDGKR be used as a standalone device? A: Yes, PCA9515BDGKR can be used as a standalone device to perform voltage-level translation in an I2C-bus or SMBus system.

  4. Q: How many channels does PCA9515BDGKR have? A: PCA9515BDGKR has two bidirectional channels, allowing for voltage-level translation between two different voltage domains.

  5. Q: What is the maximum data rate supported by PCA9515BDGKR? A: PCA9515BDGKR supports a maximum data rate of 400 kHz, making it suitable for high-speed I2C-bus or SMBus applications.

  6. Q: Can PCA9515BDGKR be used for level-shifting other than I2C-bus or SMBus? A: No, PCA9515BDGKR is specifically designed for level translation in I2C-bus or SMBus applications and may not be suitable for other protocols.

  7. Q: What is the voltage range supported by PCA9515BDGKR? A: PCA9515BDGKR supports voltage translation between 0.9V and 5.5V, making it compatible with a wide range of devices operating at different voltage levels.

  8. Q: Does PCA9515BDGKR require external power supply? A: Yes, PCA9515BDGKR requires an external power supply to operate. It has separate VCCA and VCCB pins for supplying power to the low-voltage and high-voltage sides, respectively.

  9. Q: Can PCA9515BDGKR be used in both directions simultaneously? A: Yes, PCA9515BDGKR allows bidirectional voltage-level translation, enabling communication between devices on both sides simultaneously.

  10. Q: Are there any specific layout considerations for using PCA9515BDGKR? A: Yes, proper PCB layout techniques should be followed to minimize noise and ensure signal integrity. The datasheet of PCA9515BDGKR provides guidelines for layout and decoupling capacitor placement.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult the manufacturer for detailed information and support.