The LSF0204-Q1 is automotive qualified four
channel auto bidirectional voltage translator that operate from 0.8 V to 4.5 V (Vref_A) and
1.8 V to 5.5 V (Vref_B). This range allows for bidirectional voltage translations between
0.8 V and 5.5 V without the need for a direction pin.
When the An or
Bn port is LOW, the switch is in the ON-state and a low resistance connection exists between
the An and Bn ports. The low Ron of the switch allows connections to be made with
minimal propagation delay and minimal signal distortion. The voltage on the A or B side will
be limited to Vref_A and can be pulled up to any level between Vref_A and 5.5 V
The supply voltage (VPUn) for
each channel may be individually set up with a pull up resistor. For example, CH1 may be
used in up-translation mode (1.2 V ↔ 3.3 V) and CH2 in down-translation mode (2.5 V ↔ 1.8
V).
When EN is HIGH, the translator switch is
on, and the An I/O is connected to the Bn I/O, respectively, allowing bidirectional data
flow between ports. When EN is LOW, the translator switch is off, and a high-impedance state
exists between ports. The EN input circuit is designed to be supplied by Vref_A. EN must be
LOW to ensure the high-impedance state during power-up or power-down.
The LSF0204-Q1 is automotive qualified four
channel auto bidirectional voltage translator that operate from 0.8 V to 4.5 V (Vref_A) and
1.8 V to 5.5 V (Vref_B). This range allows for bidirectional voltage translations between
0.8 V and 5.5 V without the need for a direction pin.
When the An or
Bn port is LOW, the switch is in the ON-state and a low resistance connection exists between
the An and Bn ports. The low Ron of the switch allows connections to be made with
minimal propagation delay and minimal signal distortion. The voltage on the A or B side will
be limited to Vref_A and can be pulled up to any level between Vref_A and 5.5 V
The supply voltage (VPUn) for
each channel may be individually set up with a pull up resistor. For example, CH1 may be
used in up-translation mode (1.2 V ↔ 3.3 V) and CH2 in down-translation mode (2.5 V ↔ 1.8
V).
When EN is HIGH, the translator switch is
on, and the An I/O is connected to the Bn I/O, respectively, allowing bidirectional data
flow between ports. When EN is LOW, the translator switch is off, and a high-impedance state
exists between ports. The EN input circuit is designed to be supplied by Vref_A. EN must be
LOW to ensure the high-impedance state during power-up or power-down.