NTB0104BQ-115 is a 4-bit dual power supply bidirectional voltage level converter (level shifter) launched by NXP. It adopts a 14-pin DHVQFN ultra-thin square flat leadless package. This device is specifically designed for open-drain and push-pull applications and supports automatic direction detection, without the need for an additional direction control pin.
This device has two independent power rails: VCC(A) is for Port A and supports a voltage range of 1.2V to 3.6V; VCC(B) is for Port B and supports a voltage range of 1.65V to 5.5V. This enables it to perform bidirectional voltage conversion between any low-voltage nodes such as 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5.0V. The maximum data rate is up to 100Mbps, meeting the requirements for high-speed signal transmission.
This device has an IOFF power-off protection function. When the VCC power supply is disconnected, the output enters a high-impedance state to prevent destructive return currents. All inputs can withstand voltages up to 5.5V, and the output is of the tri-state, non-inverting type. The output enable pin OE is effective when it is at a low level, allowing the output to be placed in a high-impedance off state.
This device has been certified to the AEC-Q100 standard (applicable to Grade 1 level), with an MSL level of 1. Its operating temperature range is from -40°C to +125°C, meeting the requirements for automotive applications. It supports ESD protection: the A port has HBM Class 2 > 2500V, and the B port has HBM Class 3B > 15000V. It adopts a lead-free Ni/Pd/Au coating process and complies with the RoHS standard.
Features ：
• Converter type: Voltage level converter (Voltage Level Translator), bidirectional, automatic direction detection
• Channel count: 4 channels (1 circuit, 4 channels per circuit)
• Voltage range (VCC(A)): 1.2V ~ 3.6V (at port A)
• Voltage range (VCC(B)): 1.65V ~ 5.5V (at port B)
• Data rate: Up to 100 Mbps
• Output type: Tri-State, Non-Inverted
• Characteristic functions: Automatic direction detection, IOFF partial power-off protection, Output enable control (OE)
• ESD protection: Port A HBM Class 2 > 2500V, Port B HBM Class 3B > 15000V
• Vehicle-grade certification: Complies with AEC-Q100 standard (Grade 1)
• Operating temperature: -40°C to +125°C (TA)
• Package type: DHVQFN-14 (SOT762), size 2.5mm × 3.0mm, with exposed pads
• MSL Level: Level-1 (Unrestricted)
• Pin surface treatment: Nickel/Palladium/Gold (Ni/Pd/Au)
• Environmental compliance: Compliant with RoHS 3 standards, lead-free (Pb-Free), halogen-free (Halogen Free)
Application：
• Interface bridging between multiple voltage systems: Bidirectional conversion between any logic levels of 1.2V/1.8V/2.5V/3.3V/5.0V
• Open-drain signal line conversion: Level matching for bus interfaces such as I²C, SMBus, and GPIO
• Push-pull signal conversion: Level adaptation for communication interfaces such as UART, SPI, and JTAG
• Automotive electronics: Applications such as in-vehicle infotainment systems and ADAS that require AEC-Q100 certification
• Industrial Control: Signal Interface Protection for PLC and Data Acquisition Systems
• Consumer electronics: Multi-voltage domain communication for smartphones, tablets, and portable devices
• Internet of Things devices: Level matching between low-power sensors and the main control MCU
