Texas Instruments DRV8376-Q1 3-Phase Integrated FET Motor Drivers

Texas Instruments DRV8376-Q1 3-Phase Integrated FET Motor Drivers offer a gate drive and power stage for driving 4.5V to 65V brushless-DC motors. These motor drivers feature three 1/2-H bridges with 70V absolute maximum capability and a very low R_DS(ON) of 400mΩ (high-side plus low-side). The DRV8376-Q1 motor drivers support up to 100kHz PWM frequency, a cycle-by-cycle current limit to limit phase current, active demagnetization, and 48V systems. These devices contain 6x or 3x PWM control options to implement sensored or sensorless Field-Oriented Control (FOC), sinusoidal control, or trapezoid control using an external microcontroller. The DRV8376-Q1 devices are AEC-Q100 qualified for automotive applications. Typical applications include Brushless-DC (BLDC) motor modules, HVAC motors, office automation machines, factory automation and robotics, wireless antenna motors, and drones.

The DRV8376-Q1 motor drivers include a built-in 3.3V (5%), 30mA LDO regulator and a built-in 5V (5%), 30mA LDO regulator. The protection features are Under-Voltage Lockout (UVLO), Charge Pump Under Voltage (CPUV), Overcurrent Protection (OCP), Thermal Warning and Shutdown (OTW/OTSD), and Fault condition indication pin (nFAULT).

Features

Three-phase BLDC motor driver:
- Supports 48V systems
- Supports up to 100kHz PWM frequency
- Active Demagnetization to reduce power losses
- Cycle-by-cycle current limit to limit phase current
4.5V to 65V operating voltage (70V absolute maximum)
4.5A peak high output current capability
400mΩ R_DS(ON) (HS + LS) at T_A = 25°C low MOSFET on-state resistance
Adjustable slew rate options reduced switching loss with a 1.1V/ns slew rate and reverse recovery loss minimization technique
Low audible noise and ease of motor control with ultra-low dead time <200ns, and propagation delay <100ns
1.5µA typical at V_VM = 24V, T_A = 25°C low-power sleep mode
Multiple control interface options:
- 6x PWM control interface
- 3x PWM control interface
Does not require external current sense resistors, built-in current sensing

Flexible device configuration options:
- DRV8376S: 5MHz 16-bit SPI for device configuration and fault status
- DRV8376H: Hardware pin-based configuration
Supports 1.8V, 3.3V, and 5V logic inputs
Built-in 3.3V (5%), 30mA LDO regulator
Built-in 5V (5%), 30mA LDO regulator
Integrated protection features:
- Supply Under Voltage Lockout (UVLO)
- Charge Pump Under Voltage (CPUV)
- Overcurrent Protection (OCP)
- Thermal Warning and Shutdown (OTW/OTSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over SPI