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DRV8316C

DRV8316C Series

40-V max 8-A peak 3-phase motor driver with integrated current sensing, FETs, and enhanced CSA specs

Manufacturer: Texas Instruments

Catalog

40-V max 8-A peak 3-phase motor driver with integrated current sensing, FETs, and enhanced CSA specs

Key Features

Three-phase BLDC motor driverCycle-by-cycle current limit to limit phase currentSupports up to 200-kHz PWM frequencyActive demagnetization to reduce power losses4.5-V to 35-V operating voltage (40-V abs max)High output current capability: 8-A PeakLow MOSFET on-state resistance95-mΩ RDS(ON)(HS + LS) at TA= 25°CLow power sleep mode1.5-µA at VVM= 24-V, TA= 25°CMultiple control interface options6x PWM control interface3x PWM control interface6x PWM control interface with cycle by cycle current limit3x PWM control interface with cycle by cycle current limitDoes not require external current sense resistors, built-in current sensingFlexible device configuration optionsDRV8316CR: 5-MHz 16-bit SPI interface for device configuration and fault statusDRV8316CT: Hardware pin based configurationSupports 1.8-V, 3.3-V, and 5-V logic inputsBuilt-in 3.3-V (5%), 30-mA LDO regulatorBuilt-in 3.3-V/5-V, 200-mA buck regulatorBuilt-in 3.3-V, 30-mA LDODelay compensation reduces duty cycle distortionSuite of integrated protection featuresSupply undervoltage lockout (UVLO)Charge pump undervoltage (CPUV)Overcurrent protection (OCP)Thermal warning and shutdown (OTW/OTSD)Fault condition indication pin (nFAULT)Optional fault diagnostics over SPI interfaceThree-phase BLDC motor driverCycle-by-cycle current limit to limit phase currentSupports up to 200-kHz PWM frequencyActive demagnetization to reduce power losses4.5-V to 35-V operating voltage (40-V abs max)High output current capability: 8-A PeakLow MOSFET on-state resistance95-mΩ RDS(ON)(HS + LS) at TA= 25°CLow power sleep mode1.5-µA at VVM= 24-V, TA= 25°CMultiple control interface options6x PWM control interface3x PWM control interface6x PWM control interface with cycle by cycle current limit3x PWM control interface with cycle by cycle current limitDoes not require external current sense resistors, built-in current sensingFlexible device configuration optionsDRV8316CR: 5-MHz 16-bit SPI interface for device configuration and fault statusDRV8316CT: Hardware pin based configurationSupports 1.8-V, 3.3-V, and 5-V logic inputsBuilt-in 3.3-V (5%), 30-mA LDO regulatorBuilt-in 3.3-V/5-V, 200-mA buck regulatorBuilt-in 3.3-V, 30-mA LDODelay compensation reduces duty cycle distortionSuite of integrated protection featuresSupply undervoltage lockout (UVLO)Charge pump undervoltage (CPUV)Overcurrent protection (OCP)Thermal warning and shutdown (OTW/OTSD)Fault condition indication pin (nFAULT)Optional fault diagnostics over SPI interface

Description

AI
DRV8316C integrates three H-bridges with 40-V absolute maximum capability and a very low RDS(ON)of 95 mΩ (high-side + low-side) to enable high power drive capability for 12-V/24-V brushless-DC motors. DRV8316C provides integrated current sensing which eliminates the need for external sense resistors. DRV8316C integrates power management circuits including an voltage-adjustable buck regulator (3.3 V / 5 V, 200-mA) and LDO (3.3 V / 30 mA) that can be used to power external circuits. DRV8316C provides a configurable 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 microcontroller. DRV8316C is capable of driving a PWM frequency of up to 200 kHz. DRV8316C is highly configurable either through SPI (DRV8316CR) or pins (DRV8316CT) - PWM mode. slew rate, OCP level, current sense gain are some of the configurable features. A number of protection features including supply undervoltage lockout (UVLO), overvoltage protection (OVP), charge pump undervoltage (CPUV), overcurrent protection (OCP), over-temperature warning (OTW) and over-temperature shutdown (OTSD) are integrated into DRV8316C to protect the device, motor, and system against fault events. Fault conditions are indicated by the nFAULT pin. Refer Section 9.1 for design consideration and recommendation on device usage. DRV8316C integrates three H-bridges with 40-V absolute maximum capability and a very low RDS(ON)of 95 mΩ (high-side + low-side) to enable high power drive capability for 12-V/24-V brushless-DC motors. DRV8316C provides integrated current sensing which eliminates the need for external sense resistors. DRV8316C integrates power management circuits including an voltage-adjustable buck regulator (3.3 V / 5 V, 200-mA) and LDO (3.3 V / 30 mA) that can be used to power external circuits. DRV8316C provides a configurable 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 microcontroller. DRV8316C is capable of driving a PWM frequency of up to 200 kHz. DRV8316C is highly configurable either through SPI (DRV8316CR) or pins (DRV8316CT) - PWM mode. slew rate, OCP level, current sense gain are some of the configurable features. A number of protection features including supply undervoltage lockout (UVLO), overvoltage protection (OVP), charge pump undervoltage (CPUV), overcurrent protection (OCP), over-temperature warning (OTW) and over-temperature shutdown (OTSD) are integrated into DRV8316C to protect the device, motor, and system against fault events. Fault conditions are indicated by the nFAULT pin. Refer Section 9.1 for design consideration and recommendation on device usage.