LSF0102Q

Description

The LSF0102Q is an automotive compliant 2-channel bi-directional multi-voltage level translator for open-drain and push-pull applications. This device is a universal level translator that A port operates from 0.65V to 4.5V (Vref_A) and B port 1.8V to 5.5V (Vref_B). This range allows for bi-directional voltage translations between 0.65V and 5.0V. Be aware that Vref_B is recommended to be at 1.0V higher than Vref_A for best signal integrity. The EN pin is used to activate the device. When EN is HIGH, the translator switch is on. Otherwise, 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_B via an external Rpu (pullup resistor, typ 200kΩ) and the EN must be LOW during power-up or power-down to avoid miss operation.

Be aware that external Rpu is required on each signal in both A and B ports for push-pull application because a pull-high state can avoid miss operation during power-up or power-down. As same as open-drain application, the smaller Rpu results in the larger driving current. For bidirectional signal flows, there is no need for a direction pin to minimize system effort. This device supports 5V tolerant I/O pins in a variety of applications which require different voltage translation levels.

Feature(s)

• AEC-Q100 Grade 1, Specified from -40°C to +125°C
• External Rpu (Pullup Resistor) Sets Driving Current in Both Push-Pull and Open-Drain Applications
• Maximum Data Rate is Dominated by the System Capacitance and Pullup Resistors
  • ≤ 100MHz; C_L = 15pF, 30pF, R_PU <= 300Ω
  • ≤ 50MHz; C_L = 50pF, R_PU <= 300Ω
• Bi-directional Voltage Level Translation Between:
  • 65V and 1.5V, 1.8V, 2.5V, 3.3V and 5.0V
  • 2V and 1.8V, 2.5V, 3.3V and 5.0V
  • 8V and 2.5V, 3.3V and 5.0V
  • 5V and 3.3V and 5.0V
  • 3V and 5.0V
• ESD Protection Exceeds JESD 22
  • 4000V HBM (A114)
  • 1500V CDM (C101)
• Latch-Up Exceeds 100mA per JESD 17
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• The LSF0102Q is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Application(s)

• GPIO, MDIO, SDIO, SVID, UART
• PMBus, SMBus, I2C, and other interfaces
• Infotainment head units
• ADAS computer visions
• Vehicle high-performance computing
• EV and HEV battery management systems