Overview
The P82B96DP,118, produced by NXP USA Inc., is a bipolar integrated circuit (IC) designed to create a non-latching, bidirectional logic interface between the standard I2C-bus and a variety of other bus configurations. This dual bidirectional bus buffer is capable of interfacing I2C-bus logic signals to buses with different voltage and current levels, such as the 350 μA SMBus, 3.3 V logic devices, and up to 15 V levels. It ensures minimal loading on the I2C-bus node and does not restrict the normal I2C-bus protocols or clock speed, making it versatile for various applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (Supply Voltage) | Operating | 2.0 | - | 15 | V |
| VSx, VSy (Voltage on Pin Sx, Sy) | - | -0.3 | - | 15 | V |
| Tamb (Ambient Temperature) | Operating | -40 | - | 85 | °C |
| Tstg (Storage Temperature) | - | -55 | - | 125 | °C |
| VTx, VTy (Maximum Output Voltage Level) | Open-collector | - | - | 15 | V |
| ITx, ITy (Static Output Loading on Buffered Bus) | VTx, VTy = 0.4 V; VSx, VSy = LOW on I2C-bus | - | - | 30 | mA |
Key Features
- Non-latching, bidirectional logic interface between I2C-bus and other bus configurations.
- Supports interfacing with buses having different voltage and current levels (e.g., SMBus, 3.3 V logic devices, up to 15 V levels).
- Minimal loading on the I2C-bus node without restricting normal I2C-bus protocols or clock speed.
- Open-collector configuration allows outputs to be pulled up to 15 V even without VCC present.
- Low power supply current and ESD protection exceeding 3500 V HBM and 1000 V CDM.
- Latch-up free (bipolar process with no latching structures).
- Available in SO8 and TSSOP8 packages.
Applications
- Interface between I2C-buses operating at different logic levels (e.g., 5 V and 3 V or 15 V).
- Interface between I2C-bus and SMBus (350 μA) standard.
- Simple conversion of I2C-bus SDA or SCL signals to multi-drop differential bus hardware.
- Interfaces with opto-couplers to provide opto-isolation between I2C-bus nodes up to 400 kHz.
Q & A
- What is the primary function of the P82B96DP,118?
The P82B96DP,118 is a dual bidirectional bus buffer that creates a non-latching, bidirectional logic interface between the standard I2C-bus and other bus configurations.
- What are the supported voltage levels for the P82B96DP,118?
The device supports voltage levels ranging from 2 V to 15 V.
- What types of packages are available for the P82B96DP,118?
The device is available in SO8 and TSSOP8 packages.
- Does the P82B96DP,118 add significant loading to the I2C-bus node?
No, the P82B96DP,118 adds minimal loading to the I2C-bus node.
- What is the maximum output voltage level for the P82B96DP,118?
The maximum output voltage level is 15 V in an open-collector configuration.
- Is the P82B96DP,118 latch-up free?
- What is the ESD protection level of the P82B96DP,118?
The device has ESD protection exceeding 3500 V HBM and 1000 V CDM.
- Can the P82B96DP,118 be used for opto-isolation between I2C-bus nodes?
- What are some common applications of the P82B96DP,118?
- What is the ambient temperature range for the P82B96DP,118?
