Overview
The TXS0101DBVT is a 1-bit bidirectional voltage-level translator produced by Texas Instruments. This device is designed for open-drain and push-pull applications, allowing for low-voltage bidirectional translation between various voltage nodes such as 1.8V, 2.5V, 3.3V, and 5V. It features two separate configurable power-supply rails, with the A port tracking VCCA (1.65V to 3.6V) and the B port tracking VCCB (2.3V to 5.5V). The device operates over a wide temperature range of -40°C to 85°C and is packaged in a SOT-23 (DBV) package with 6 pins.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBV) | - |
| Pins | 6 | - |
| Operating Temperature Range | -40 to 85 | °C |
| VCCA Supply Voltage | 1.65 to 3.6 | V |
| VCCB Supply Voltage | 2.3 to 5.5 | V |
| Maximum Data Rate (Push-Pull) | 24 Mbps | - |
| Maximum Data Rate (Open-Drain) | 2 Mbps | - |
| ESD Protection (A Port) | 2500V Human-Body Model, 200V Machine Model, 1500V Charged-Device Model | - |
| ESD Protection (B Port) | 8kV Human-Body Model, 200V Machine Model, 1500V Charged-Device Model | - |
Key Features
- Latch-up performance exceeds 100mA per JESD 78, class II.
- ESD protection exceeds JESD 22 standards.
- No direction-control signal needed.
- VCC isolation feature – if either VCC input is at GND, both ports are in the high-impedance state.
- No power-supply sequencing required – either VCCA or VCCB can be ramped first.
- Supports partial-power-down mode operation.
- Available in the Texas Instruments NanoFree™ package.
- Output-enable (OE) input to place all outputs in the high-impedance state when low.
Applications
The TXS0101DBVT is suitable for a variety of applications requiring voltage-level translation, including:
- Interface between different voltage domains in mixed-voltage systems.
- Level shifting in communication protocols such as I2C, SPI, and UART.
- Power management and sequencing in multi-voltage systems.
- Industrial and consumer electronics where voltage translation is necessary.
Q & A
- What is the primary function of the TXS0101DBVT?
The TXS0101DBVT is a 1-bit bidirectional voltage-level translator designed for open-drain and push-pull applications.
- What are the operating voltage ranges for VCCA and VCCB?
VCCA operates from 1.65V to 3.6V, and VCCB operates from 2.3V to 5.5V.
- What is the maximum data rate for push-pull and open-drain driving?
The maximum data rate is 24 Mbps for push-pull driving and 2 Mbps for open-drain driving.
- What kind of ESD protection does the TXS0101DBVT offer?
The device offers ESD protection exceeding JESD 22 standards, with 2500V Human-Body Model, 200V Machine Model, and 1500V Charged-Device Model for the A port, and 8kV Human-Body Model for the B port.
- How does the output-enable (OE) input function?
When the OE input is low, all outputs are placed in the high-impedance state.
- Is power-supply sequencing required for the TXS0101DBVT?
No, either VCCA or VCCB can be ramped first without any sequencing requirement.
- What is the operating temperature range of the TXS0101DBVT?
The device operates over a temperature range of -40°C to 85°C.
- What package type is the TXS0101DBVT available in?
The device is available in a SOT-23 (DBV) package with 6 pins.
- Does the TXS0101DBVT support partial-power-down mode operation?
- What are some common applications for the TXS0101DBVT?
