Texas Instruments TXB0104/TXB0104-Q1 4-Bit Voltage-Level Shifters

Texas Instruments TXB0104/TXB0104-Q1 4-Bit Bidirectional Voltage-Level Shifters use two separate configurable power-supply rails. The A port is designed to track V_CCA, which accepts any supply voltage from 1.2V to 3.6V. The B port is designed to track V_CCB, which accepts any supply voltage from 1.65V to 5.5V. This feature allows universal low-voltage bidirectional translation between 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V voltage nodes. V_CCA must not exceed V_CCB.

When the OE input is low, all outputs are placed in a high-impedance state. To ensure the high-impedance state during power up or power down, OE must be tied to GND through a pulldown resistor. The driver's current sourcing capability determines the resistor's minimum value. The Texas Instruments TXB0104 is designed so that the OE input circuit is supplied by V_CCA. This device is fully specified for partial-power-down applications using I_OFF. The I_OFF circuitry disables the outputs, preventing damaging current backflow through the device when powered down.

The TXB0104-Q1 is AEC-Q100 qualified for automotive applications.

Features

Qualified for automotive applications
- AEC-Q100 qualified with the following results
- Device temperature grade 1of -40°C to +125°C ambient operating temperature range
1.2V to 3.6V on A Port and 1.65V to 5.5V on B Port (V_CCA ≤ V_CCB)
V_CC isolation feature (if either V_CC input is at GND, all outputs are in the high-impedance state)
Output Enable (OE) input circuit referenced to V_CCA
Low power consumption, 5µA maximum I_CC

I_OFF supports partial power-down mode operation
Latch-up performance exceeds 100mA per JESD 78, Class II
ESD protection exceeds JESD 22
- A Port
  - 2500V human-body model (A114-B)
  - 1500V charged-device model (C101)
- B Port
  - ±15kV human-body model (A114-B)
  - 1500V charged-device model (C101)