Overview
The P82B96DRG4, produced by Texas Instruments, is a dual bidirectional bus buffer designed to facilitate communication between I2C buses operating at different voltage and current levels. This device supports bidirectional data transfer and is particularly useful for extending the range of I2C bus signals, allowing for longer cables and more devices per bus. It can interface with various bus configurations, including those with different logic levels ranging from 2 V to 15 V, making it versatile for a wide range of applications. The P82B96DRG4 also features high current sink capability, ESD protection, and the ability to operate at frequencies up to 400 kHz, making it suitable for high-speed data transfer and signal integrity in various industries.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC-8 | |
| Operating Temperature Range | -40°C to 85°C | °C |
| Supply Voltage Range | 2 V to 15 V | V |
| Supply Current | Up to 4 mA | mA |
| Operating Frequency | Up to 400 kHz | kHz |
| Bus Capacitance (Main Side) | 400 pF | pF |
| Bus Capacitance (Transmission Side) | 4000 pF | pF |
| ESD Protection | Exceeds JESD 22 | |
| Mounting Type | Surface Mount | |
| Number of Channels | 2 |
Key Features
- Supports bidirectional data transfer between I2C buses operating at different logic levels (2 V to 15 V).
- Allows for longer cables and more devices per I2C bus by isolating bus capacitance.
- High current sink capability for driving low-impedance or high-capacitive buses.
- Operates at frequencies up to 400 kHz.
- ESD protection exceeds JESD 22 standards.
- Supports galvanic isolation and balanced transmission lines (twisted pairs).
- 8-SOIC package with surface-mount mounting type.
Applications
- Industrial control systems: Enhances signal integrity and extends the range of I2C bus signals in industrial environments.
- Automotive electronics: Supports high-speed data transfer and signal extension in automotive applications.
- Consumer electronics: Improves noise immunity and signal quality in consumer electronic devices.
- Medical devices: Ensures reliable and high-speed data communication in medical equipment.
- HDMI DDC device information and long-distance I2C communications: Facilitates reliable data transfer over extended distances.
Q & A
- What is the primary function of the P82B96DRG4?
The P82B96DRG4 is a dual bidirectional bus buffer designed to facilitate communication between I2C buses operating at different voltage and current levels.
- What is the operating temperature range of the P82B96DRG4?
The operating temperature range is -40°C to 85°C.
- What is the maximum operating frequency of the P82B96DRG4?
The device can operate at frequencies up to 400 kHz.
- How does the P82B96DRG4 handle bus capacitance?
The device isolates bus capacitance, allowing for longer cables and more devices per I2C bus.
- What type of ESD protection does the P82B96DRG4 offer?
The device offers ESD protection that exceeds JESD 22 standards.
- Can the P82B96DRG4 be used in galvanic isolation applications?
- What is the package type and mounting style of the P82B96DRG4?
The device comes in an 8-SOIC package with a surface-mount mounting type.
- What are some common applications of the P82B96DRG4?
Common applications include industrial control systems, automotive electronics, consumer electronics, and medical devices.
- How does the P82B96DRG4 handle high current sink capability?
The device has high current sink capability for driving low-impedance or high-capacitive buses.
- Can the P82B96DRG4 be used in multi-point configurations?
