The
DRV8316 provides a single-chip power stage solution for customers driving 12-V and
24-V brushless-DC motors . The DRV8316 integrates three 1/2-H bridges with 40-V
absolute maximum capability and a very low RDS(ON) of 95mOhms (high-side plus
low-side) to enable high power drive capability. Current is sensed using an
integrated current sensing feature which eliminates the need for external sense
resistors. Power management features of an adjustable buck regulator and LDO
generate the necessary voltage rails for the device and can be used to power
external circuits.
DRV8316
implements a 6x or 3x PWM control scheme which can be used to implement sensored or
sensorless field-oriented control (FOC), sinusoidal control, or trapezoid control
using an external microcontroler. The DRV8316 is capable of driving a PWM frequency
up to 200 kHz. The control scheme is highly configurable through hardware pins or
register settings ranging from motor current limiting behavior to fault response.
Each
output driver channel consists of N-channel power MOSFETs configured in a
half-bridge configuration. Various PWM control modes are supported for simple
interfacing to control circuits that can be powered by the 30-mA, 3.3-V internal
regulator (AVDD). The DRV8316R/T
also supports a buck regulator which in
conjunction can support 200-mA with programmable regulated supply. The device
supports 200-kHz maximum PWM frequency.
There are a large number of protection
features integrated into the DRV8316, intended to
protect the device, motor, and system against fault events.
Refer Section 9.1 for design consideration and recommendation on device usage.
The
DRV8316 provides a single-chip power stage solution for customers driving 12-V and
24-V brushless-DC motors . The DRV8316 integrates three 1/2-H bridges with 40-V
absolute maximum capability and a very low RDS(ON) of 95mOhms (high-side plus
low-side) to enable high power drive capability. Current is sensed using an
integrated current sensing feature which eliminates the need for external sense
resistors. Power management features of an adjustable buck regulator and LDO
generate the necessary voltage rails for the device and can be used to power
external circuits.
DRV8316
implements a 6x or 3x PWM control scheme which can be used to implement sensored or
sensorless field-oriented control (FOC), sinusoidal control, or trapezoid control
using an external microcontroler. The DRV8316 is capable of driving a PWM frequency
up to 200 kHz. The control scheme is highly configurable through hardware pins or
register settings ranging from motor current limiting behavior to fault response.
Each
output driver channel consists of N-channel power MOSFETs configured in a
half-bridge configuration. Various PWM control modes are supported for simple
interfacing to control circuits that can be powered by the 30-mA, 3.3-V internal
regulator (AVDD). The DRV8316R/T
also supports a buck regulator which in
conjunction can support 200-mA with programmable regulated supply. The device
supports 200-kHz maximum PWM frequency.
There are a large number of protection
features integrated into the DRV8316, intended to
protect the device, motor, and system against fault events.
Refer Section 9.1 for design consideration and recommendation on device usage.