Three phase ASICs

ET8132 is an IC with built-in three-phase predriver designed for BLDC motor drive system. Due to a high level of integration, the chip has few peripheral components and is featured with low noise and small torque ripple. Motor parameters, startup control parameters and speed regulation mode can be
configured via GUI, and are stored in built-in EEPROM. Analog voltage, PWM, I2C interface or CLOCK mode is available for motor speed regulation. Moreover, the chip integrates speed indicator to read motor speed in real time via FG pin or I2C interface. Speed-loop, current-loop, power-loop or voltage-loop control mode is optional. In addition, the chip is secured with various protection features, including over-current protection (OCP), under-voltage lockout (UVLO), over-voltage lockout (OVLO), motor lock protection (MLP), phase loss protection, abnormal Hall input detection (HALLERR) protection, etc. Sleep current of the chip is about 60μA.

Features 
- Sensorless FOC
- Hall-based FOC (Hall-IC/Hall-Sensor)
- Hall-based SVPWM (Hall-IC/Hall-Sensor)
- 3P3N pre-driver with configurable deadtime
- Speed-loop, current-loop, power-loop or voltage-loop control mode
- Analog voltage, PWM, I2C interface or CLOCK mode for motor speed regulation
- Real-time information interactions by I2C for motor control and motor states readback
- Rotor initial position detection
- Tailwind and headwind detection
- Soft-on and soft-off features
- Built-in EEPROM
- Configurable multi-segment output curve
- Configurable multi-segment output curve
- Support protection features, including OCP, UVLO, OVLO, MLP, phase loss protection, abnormal Hall input detection (HALLERR) protection, etc.
- Forward or reverse rotation selectable
- FG and RD output

Application
- Pedestal fans
- cooling fans
-ceiling fans
- robot vacuum cleaners
- vacuum cleaners
- etc.

MCU Embedded and Configurable 3-Phase BLDC/PMSM Motor Controller

EU6812x2/61x2/62x2 series is a high performance motor driver dedicated chip integrated with 8051 kernel and motor control engine (ME). 8051 kernel deals with routine affairs, ME deals with motor real-time transactions, and dual-core collaborative work realizes various high performance motor control. Most of the 8051 kernel instruction cycle is 1T or 2T, chip internal integration of high-speed operational amplifier, comparator, high-speed ADC, multiplier, divider, CRC, SPI, I2C, UART, a variety of TIMER, PWM and other functions, built-in high voltage LDO, BLDC/PMSM motor square wave, SVPWM/SPWM, FOC driver control. For the differences between EU6812 and EU6861, please refer to the Driver chapter. The output method of EU6812 is PWM, while the output of EU6861 is 6N Predriver.
EU6812 package types: EU6812L2 (LQFP48), EU6812N2 (QFN32), EU6812S2 (SSOP24), EU6812P2
(LQFP32), EU6812V(SSOP24). EU6861 package types: EU6861Q2 (QFN56), EU6861N2 (QFN40), EU6861L2(LQFP48). EU6862 package types: EU6862L(LQFP48)、EU6862Q(QFN48). For the convenience of description and differentiation, if specific packages are specified later, it means that
this feature is exclusive to corresponding packages; otherwise, it is a common feature of EU6812x2/61x2/62x2 series chips.

Features
- 12 GPIO
- 5 ADC channels
- Built-in VREF reference for configureable 3V, 4V, 4.5V, VDD5 (EU6812S2/P2/V can only choose VDD5 for internal reference.
- Built-in VHALF (1/2 VREF) reference output.
- 3 independent operational amplifiers (EU6812N2/S2 and EU6861N2 only have an independent op amp)
- 3-channel analog comparator
- 9-bit DAC
- PWM output (for EU6812L2/N2/S2/P/V)
- BLDC control supports automatic commutation, wave-by-wave current limiting, support for HALL BEMF position detection.
- FOC driver supports single/dual/three resistors current sampling (EU6812N2/S2 and EU6861N2 only
- support single resistor current sampling).
- FOC driver supports overmodulation
- Built-in oscillator

Applikation
- Sensorless/Sensor BLDC/PMSM
- three -phase/single-phase induction motor
- servo motor
- Range hoods
- indoor units
- ceiling fans
- floor fans
- vacuum cleaners
- hair dryers
- industrial fans
- water pumps 
- compressors
- electric vehicles
- electric tools
- aircraft models
- etc.

Half-bridge Gate Driver designed for driving high-voltage, high-speed N-type power MOSFET

ED2203S is a Half-bridge Gate Driver designed for driving high-voltage, high-speed N-type power MOSFET, and workable at 250V circuit. ED2203S has built-in under-voltage (UVLO) protection to prevent the power tube at low voltage to work, and also for improving efficiency. ED2203S has also built-in input signal filtering to prevent input noise. It can also prevent the short-circuit turning on of MOSFETs, and thus protect effectively the power devices

Features
- Suspension absolute voltage :+250V
- Output current: +1.6A/-2.3A
- Input logic compatible: 3.3V/5V
- VCC/VBS Undervoltage protection (UVLO)
- High side output is in phase with the high side input
- Low side output is out of phase with the low side input
- Cross-conduction prevention
- Built-in 250ns dead time zone
- Channel matching for high and low side

Applikation
- Wireless charger
- E-bike
- electric drill
- grass trimmer
 

MCU Evaluation Kit (more types available)