Overview
The PCA9306DP,118 is a dual bidirectional I²C-bus and SMBus voltage-level translator produced by NXP USA Inc. This device is designed to facilitate voltage translation between two different voltage domains, making it an essential component in mixed-mode I²C and SMBus applications. It operates with an enable (EN) input and supports voltage translations between 1.2 V and 5.5 V without the need for a direction pin. The PCA9306DP,118 is known for its lockup-free operation, flow-through pinout, and robust ESD protection, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| VREF1 (Reference Voltage 1) | 1.2 | 3.6 | V |
| VREF2 (Reference Voltage 2) | 1.8 | 5.5 | V |
| EN (Enable Input Voltage) | 0 | 5.5 | V |
| VI/O (Input/Output Voltage) | 0 | 5.5 | V |
| IPASS (Pass Switch Current) | - | 64 | mA |
| TA (Operating Ambient Temperature) | -40 | 85 | °C |
| RθJA (Junction-to-Ambient Thermal Resistance) | 254.1 | 299.3 | °C/W |
Key Features
- 2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I²C applications.
- I²C and SMBus compatible.
- Lockup-free operation for isolation when EN = low.
- Flow-through pinout for ease of printed-circuit-board trace routing.
- Latch-up performance exceeds 100 mA per JESD 78, class II.
- ESD protection exceeds JESD 22 – 2000-V Human-body model (A114-A) and 1000-V Charged-device model (C101).
Applications
- I²C, SMBus, PMBus, MDIO, UART, low-speed SDIO, GPIO, and other two-signal interfaces.
- Servers and data centers.
- Telecom switching equipment and routers.
- Personal computers.
- Industrial automation systems.
Q & A
- What is the PCA9306DP,118 used for?
The PCA9306DP,118 is used as a dual bidirectional I²C-bus and SMBus voltage-level translator, facilitating communication between devices operating at different voltage levels.
- What are the supported voltage ranges for VREF1 and VREF2?
VREF1 supports 1.2 V to 3.6 V, and VREF2 supports 1.8 V to 5.5 V.
- Does the PCA9306DP,118 require a direction pin for voltage translation?
No, the PCA9306DP,118 does not require a direction pin for voltage translation.
- What is the operating ambient temperature range for the PCA9306DP,118?
The operating ambient temperature range is from -40°C to 85°C.
- What kind of ESD protection does the PCA9306DP,118 offer?
The PCA9306DP,118 offers ESD protection exceeding JESD 22 – 2000-V Human-body model (A114-A) and 1000-V Charged-device model (C101).
- What are some common applications of the PCA9306DP,118?
Common applications include servers, routers, personal computers, and industrial automation systems.
- Does the PCA9306DP,118 support lockup-free operation?
- What is the junction-to-ambient thermal resistance of the PCA9306DP,118?
The junction-to-ambient thermal resistance (RθJA) ranges from 254.1°C/W to 299.3°C/W.
- Is the PCA9306DP,118 compatible with SMBus?
- What is the maximum pass switch current (IPASS) for the PCA9306DP,118?
The maximum pass switch current (IPASS) is 64 mA.
