TXB0104-Q1 - Automotive 4-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing and +/-15kV ESD

Voltage-level translators address the challenges posed by simultaneous use of different supply-voltage levels on the same circuit board. This 4-bit non-inverting translator uses two separate configurable power-supply rails. The A port is designed to track V_CCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V_CCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. V_CCA should not exceed V_CCB.

When the output-enable (OE) input is low, all outputs are placed in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

The 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 it is powered down.

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results
  • Device Temperature Grade 1: –40°C to +125°C
    Ambient Operating Temperature Range
• 1.2 V to 3.6 V on A Port and 1.65 V to 5.5 V 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
• OE Input Circuit Referenced to V_CCA
• I_off Supports Partial-Power-Down Mode Operation
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22
  • A port
    • ±2500-V Human-Body Model (A114-B)
    • ±1000-V Charged-Device Model (C101)
  • B port
    • ±15000-V Human-Body Model (A114-B)
    • ±1000-V Charged-Device Model (C101)