NXP USA Inc.
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PCA9519PW,118
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PCA9519PW,118

Product Overview

Category

PCA9519PW,118 belongs to the category of integrated circuits (ICs).

Use

The PCA9519PW,118 is commonly used as a level translator and voltage-level shifter in electronic circuits.

Characteristics

  • The PCA9519PW,118 is designed to translate logic levels between different voltage domains.
  • It operates with supply voltages ranging from 1.2V to 5.5V.
  • This IC supports bidirectional voltage translation, making it suitable for both I2C and SMBus applications.
  • It features a low standby current consumption, making it energy-efficient.
  • The PCA9519PW,118 has built-in ESD protection, ensuring robustness against electrostatic discharges.

Package

The PCA9519PW,118 is available in a small outline package (SOP) with 8 pins.

Essence

The essence of PCA9519PW,118 lies in its ability to facilitate communication between devices operating at different voltage levels.

Packaging/Quantity

The PCA9519PW,118 is typically sold in reels containing a quantity of 2500 units per reel.

Specifications

  • Supply Voltage: 1.2V - 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Data Rate: 400kHz
  • Number of Pins: 8
  • Package Type: SOP

Detailed Pin Configuration

The PCA9519PW,118 has the following pin configuration:

  1. SDA1: Input/output for the first I2C bus.
  2. SCL1: Input for the clock signal of the first I2C bus.
  3. OE: Output enable pin for controlling the direction of data flow.
  4. GND: Ground reference.
  5. VCC: Positive power supply.
  6. SDA2: Input/output for the second I2C bus.
  7. SCL2: Input for the clock signal of the second I2C bus.
  8. VREF: Reference voltage for level translation.

Functional Features

  • Bidirectional voltage translation between two I2C buses operating at different voltage levels.
  • Automatic direction sensing and control using the OE pin.
  • Built-in ESD protection for enhanced reliability.
  • Low standby current consumption for energy efficiency.

Advantages and Disadvantages

Advantages

  • Enables communication between devices with different voltage levels.
  • Supports bidirectional data transfer.
  • Provides ESD protection.
  • Energy-efficient operation.

Disadvantages

  • Limited to I2C and SMBus applications.
  • Maximum data rate is limited to 400kHz.

Working Principles

The PCA9519PW,118 operates by monitoring the voltage levels on the input pins (SDA1, SDA2) and automatically controlling the direction of data flow using the OE pin. When the voltage on one side is higher than the other, the PCA9519PW,118 translates the logic levels to ensure proper communication between the two voltage domains.

Detailed Application Field Plans

The PCA9519PW,118 finds applications in various fields where voltage-level translation is required, such as:

  1. Industrial automation systems
  2. Consumer electronics
  3. Automotive electronics
  4. Medical devices
  5. Communication equipment

Detailed and Complete Alternative Models

  1. PCA9306DCUR: This IC offers similar functionality with a smaller package size.
  2. TXB0108PWR: A voltage-level translator with a higher maximum data rate of 20Mbps.
  3. SN74LVC4245APW: Provides bidirectional voltage translation for a wider range of voltage levels.

These alternative models can be considered based on specific application requirements and constraints.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق PCA9519PW,118 في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of PCA9519PW,118:

1. What is PCA9519PW,118? PCA9519PW,118 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. What is the purpose of PCA9519PW,118? The PCA9519PW,118 is used to extend the range of an I2C bus by buffering and level-shifting signals between devices operating at different voltage levels.

3. Can PCA9519PW,118 be used for bidirectional communication? Yes, PCA9519PW,118 supports bidirectional data transfer between the low-voltage side and high-voltage side of the I2C bus.

4. What is the maximum operating frequency of PCA9519PW,118? PCA9519PW,118 can operate at frequencies up to 400 kHz, making it suitable for most I2C applications.

5. How many devices can be connected to PCA9519PW,118? PCA9519PW,118 can support multiple devices on both the low-voltage and high-voltage sides of the bus, allowing for easy expansion of the I2C network.

6. Does PCA9519PW,118 require external power supply? Yes, PCA9519PW,118 requires an external power supply. It operates from a single power supply in the range of 1.65V to 5.5V.

7. Is PCA9519PW,118 compatible with SMBus? Yes, PCA9519PW,118 is fully compatible with the System Management Bus (SMBus) specification.

8. Can PCA9519PW,118 be used in hot-swapping applications? Yes, PCA9519PW,118 supports hot-swapping, allowing devices to be added or removed from the bus without disrupting the operation of other devices.

9. Does PCA9519PW,118 have built-in ESD protection? Yes, PCA9519PW,118 provides ±8 kV ESD protection on the I2C-bus pins, ensuring robustness against electrostatic discharge events.

10. Are there any application notes or reference designs available for PCA9519PW,118? Yes, NXP provides application notes and reference designs that demonstrate the proper usage and integration of PCA9519PW,118 in various technical solutions. These resources can be found on the NXP website or obtained from their technical support team.