PT8061T

Description: PT8061 is an IC with built-in pre-driver designed for three-phase BLDC motor driver applications. Due to a high level of integration, few peripheral components are required. The chip supports sensored SVPWM (PT8061L) and sensorless FOC to reduce audible noise and minimize torque ripple in motor drives. Motor parameters, startup control parameters and speed regulation mode can be configured via GUI, and are stored in built-in EEPROM. Analog voltage input, PWM or I2C interface is available for motor speed regulation. Moreover, the chip integrates speed indicator to read motor speed in real time via FG/RD_SDA pin or I2C interface. It is secured with a wide range of protection features, including over-current protection (OCP), current-limiting protection (CLP), under-voltage lockout (UVLO), temperature sensor detect (TSD), motor lock protection (MLP), configurable maximum speed protection, bus voltage protection, abnormal Hall input detection (HALLERR) protection (PT8061L), etc. The chip also supports power closed-loop control.

Features: ◼ VCC range: 12V ~ 20V
◼ Sensorless FOC
◼ PT8061L supports sensor-based FOC
(Hall-IC/Hall-Sensor)
◼ PT8061L supportssensor-based SVPWM
(Hall-IC/Hall-Sensor)
◼ 6N pre-driver with configurable deadtime
◼ Drive current: +0.21A/-0.36A
◼ Constant speed control mode, constant
current control mode or constant power
control mode is optional.
◼ Forward and reverse direction control
◼ FG and RD output
◼ PWM, analog voltage input or I
2C interface
for motor speed regulation
◼ Support multi-stage lead angle curve to fit
motor characteristics
◼ Soft-on and soft-off features protect the
motor from abrupt startup and reduces
current shock and noise
◼ Support protection features, including OCP,
CLP, UVLO, TSD, MLP, configurable
maximum speed protection, bus voltage
protection, abnormal Hall input detection
(HALLERR) protection (PT8061L), etc.