Overview
The TXB0104PWRG4, produced by Texas Instruments, is a 4-bit bidirectional voltage-level translator designed for level-translation applications. This device enables communication between devices or systems operating at different interface voltages. It features automatic direction sensing, eliminating the need for a direction control signal, and supports a wide range of voltage levels on both its A and B ports.
The TXB0104PWRG4 is particularly useful in scenarios where different voltage nodes need to be interfaced, such as between 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. The device is optimized for low power consumption and high-speed operation, making it suitable for various applications including mobile devices, desktop PCs, and other electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage Range - VCCA | 1.2 V to 3.6 V | V |
| Voltage Range - VCCB | 1.65 V to 5.5 V | V |
| Output Type | Tri-State, Non-Inverted | |
| Data Rate | 100 Mbps | Mbps |
| Temperature Range | -40°C to 85°C | °C |
| Package Type | 14-TSSOP | |
| ESD Protection | ±15 kV Human-Body Model, 1500 V Charged-Device Model | kV, V |
| Low Power Consumption | 5 μA maximum ICC | μA |
| Propagation Delay Time | 1.2 ns to 12 ns (depending on VCCB) | ns |
Key Features
- Bidirectional Voltage Translation: Supports translation between various voltage levels.
- Auto Direction Sensing: Automatically senses the direction of data flow, eliminating the need for a direction control signal.
- 4-Bit Level Shifter: Translates four data lines between the high-voltage (B side) and low-voltage (A side).
- High-Speed Operation: Capable of operating at speeds up to 100 Mbps.
- Low Power Consumption: Maximum ICC of 5 μA, suitable for battery-operated devices and power-sensitive applications.
- Latch-Up Performance: Exceeds 100 mA per JESD 78, Class II.
- Open-Drain I/O Ports: Allows various devices to be interfaced.
- Schmitt-Trigger Inputs: Provides hysteresis and noise immunity.
- ESD Protection: Protected against electrostatic discharge with ±15 kV Human-Body Model and 1500 V Charged-Device Model.
- Small Package Options: Available in compact packages such as 14-TSSOP, suitable for space-constrained applications.
Applications
- Headsets: For voltage translation in audio interfaces.
- Smartphones: To interface different voltage domains within the device.
- Tablets: For level translation in various subsystems.
- Desktop PCs: To connect peripherals operating at different voltage levels.
- Bidirectional Communication Buses: Such as I2C and SMBus, where level shifting is necessary.
Q & A
- What is the voltage range for the A port of the TXB0104PWRG4?
The voltage range for the A port (VCCA) is from 1.2 V to 3.6 V.
- What is the voltage range for the B port of the TXB0104PWRG4?
The voltage range for the B port (VCCB) is from 1.65 V to 5.5 V.
- What is the maximum data rate supported by the TXB0104PWRG4?
The maximum data rate supported is 100 Mbps.
- What type of ESD protection does the TXB0104PWRG4 offer?
The device offers ±15 kV Human-Body Model and 1500 V Charged-Device Model ESD protection.
- What is the typical power consumption of the TXB0104PWRG4?
The maximum ICC (current consumption) is 5 μA.
- Does the TXB0104PWRG4 support partial power-down mode?
Yes, it supports partial power-down mode using the IOFF circuitry.
- What is the temperature range for the TXB0104PWRG4?
The operating temperature range is from -40°C to 85°C.
- What package types are available for the TXB0104PWRG4?
It is available in packages such as 14-TSSOP, VQFN, SOIC, and others.
- Does the TXB0104PWRG4 have any special input features?
Yes, it features Schmitt-trigger inputs for hysteresis and noise immunity.
- What is the purpose of the OE input in the TXB0104PWRG4?
The OE (output enable) input places all outputs in the high-impedance state when low, and it must be tied to GND through a pulldown resistor during power-up or power-down.
