[Big chip solution] Cooking is easier now! WPG launches a household range hood solution based on Toshiba TB9062FNG three-phase brushless sensor pre-start IC

On August 12, 2021 , WPG Holdings, a leading semiconductor component distributor dedicated to the Asia Pacific market, announced

Its subsidiary Quan Ding launched a household range hood solution based on Toshiba’s TB9062FNG three-phase brushless sensorless pre-driver IC. ☜

Figure 1-Display board of DaLian DaQuanDing's household range hood solution based on Toshiba products

The range hood is the most important tool for cooking. It can take away a lot of kitchen fumes produced when frying and cooking, thus preventing people from inhaling carcinogens in the fumes. At the current stage, with the continuous improvement of technology, people have put forward higher requirements for range hoods, including low noise, variable frequency power saving, and high exhaust efficiency. In order to achieve these requirements, a high-performance motor is essential. The kitchen range hood solution launched by Dalian Daquan Ding uses Toshiba TB9062FNG's three-phase brushless sensorless pre-driver IC, which can help the product achieve excellent performance.

Figure 2-Block diagram of DaLian DaQuanDing's household range hood solution based on Toshiba products

TB9062FNG is a three-phase brushless sensorless pre-driver IC that can control motor speed and torque without using a microcontroller and Hall sensors, which can reduce the workload during MCU development. In addition, since the product omits Hall components, it not only helps to reduce the size of the MCU board, but also improves the overall BOM Cost down advantage, and these advantages are more significant than the ECU and Hall components required for traditional motor control.

Figure 3-Block diagram of Toshiba TB9062FNG three-phase brushless sensorless pre-driver IC represented by DaLian Daquan Ding

▌Core Technology Advantages

• Three-phase brushless sensorless pre-driver IC

• External MOSFET configuration and no charge pump circuit make the circuit simpler and save more PCB peripheral parts

• Corresponding to PWM input control

• Prevents motor from losing steps by suppressing sudden changes in output duty cycle

• Improving startup performance through logic control

• Various built-in abnormality detection functions (over-temperature, over-voltage, over-current)

▌Solution Specifications

• 120 degree square wave drive sensorless operation

• The motor speed is controlled by an external PWM input signal

• Pre-driver for external Pch/Nch MOSFET (three-phase drive via 6 pre-driver output signals)

• Optional lead angle settings

• Built-in 8-bit ADC to detect overvoltage/undervoltage

• Built-in 1ch comparator to detect Back-EMF zero-crossing point to detect motor position

• Automatic start-up duty cycle control to maintain starting torque

• Abnormality detection (motor overcurrent, overvoltage, undervoltage, IC overheating)

• Built-in internal 4 MHz OSC (when external R = 39kΩ)

• Built-in 5V regulator with power-on reset function

• Operating temperature: -40 to 125°C

• Small flat package SSOP-24pin (0.65mm pitch)