Overview
The DRV8316RRGFR, produced by Texas Instruments, is a highly integrated 3-phase brushless DC (BLDC) motor driver. This device provides a single-chip power stage solution for driving 12-V and 24-V BLDC motors. It integrates three 1/2-H bridges with a 40-V absolute maximum capability and features very low RDS(ON) of 95 mΩ (high-side plus low-side) to enable high power drive capability. The DRV8316RRGFR includes built-in current sensing, eliminating the need for external sense resistors, and offers multiple control interface options for flexible configuration.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | VQFN (RGF) | - |
| Pins | 40 | - |
| Operating Voltage | 4.5-V to 35-V (40-V abs max) | V |
| Peak Output Current | 8-A | A |
| MOSFET On-State Resistance | 95 mΩ (HS + LS) at TA = 25°C | mΩ |
| Operating Temperature Range | -40°C to 125°C | °C |
| PWM Frequency | Up to 200 kHz | kHz |
| Logic Input Voltage | 1.8-V, 3.3-V, and 5-V | V |
| Built-in Regulators | 3.3-V (5%), 30-mA LDO; 3.3-V/5-V, 200-mA Buck Regulator | - |
| Protection Features | UVLO, CPUV, OCP, OTW/OTSD, Fault Condition Indication Pin (nFAULT) | - |
Key Features
- Three-phase BLDC motor driver with integrated current sensing and FETs.
- High output current capability: 8-A peak.
- Low MOSFET on-state resistance: 95 mΩ (high-side plus low-side) at TA = 25°C.
- Low power sleep mode: 1.5-µA at VVM = 24-V, TA = 25°C.
- Multiple control interface options: 6x PWM, 3x PWM, with cycle-by-cycle current limit.
- Flexible device configuration options: DRV8316R (SPI interface), DRV8316T (hardware pin-based configuration).
- Supports 1.8-V, 3.3-V, and 5-V logic inputs.
- Built-in 3.3-V (5%), 30-mA LDO regulator and 3.3-V/5-V, 200-mA buck regulator.
- Suite of integrated protection features: UVLO, CPUV, OCP, OTW/OTSD, fault condition indication pin (nFAULT).
Applications
- CPAP machines.
- Brushless-DC (BLDC) Motor Modules.
- Printers.
- Camera gimbals.
- HVAC motors.
- Small home appliances.
- Office automation machines.
- Factory automation and robotics).
Q & A
- What is the operating voltage range of the DRV8316RRGFR?
The operating voltage range is 4.5-V to 35-V with an absolute maximum of 40-V).
- What is the peak output current capability of the DRV8316RRGFR?
The peak output current capability is 8-A).
- What type of motor does the DRV8316RRGFR drive?
The DRV8316RRGFR drives three-phase brushless DC (BLDC) motors).
- Does the DRV8316RRGFR require external current sense resistors?
No, the DRV8316RRGFR has built-in current sensing and does not require external current sense resistors).
- What are the available control interface options for the DRV8316RRGFR?
The device supports 6x PWM, 3x PWM, and these configurations with cycle-by-cycle current limit).
- What are the built-in regulators available on the DRV8316RRGFR?
The device includes a 3.3-V (5%), 30-mA LDO regulator and a 3.3-V/5-V, 200-mA buck regulator).
- What protection features are integrated into the DRV8316RRGFR?
The device includes supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), overcurrent protection (OCP), thermal warning and shutdown (OTW/OTSD), and a fault condition indication pin (nFAULT)).
- What is the maximum PWM frequency supported by the DRV8316RRGFR?
The maximum PWM frequency supported is up to 200 kHz).
- What are the typical applications of the DRV8316RRGFR?
Typical applications include CPAP machines, BLDC motor modules, printers, camera gimbals, HVAC motors, small home appliances, office automation machines, and factory automation and robotics).
- How can the DRV8316RRGFR be configured?
The device can be configured using either a 5-MHz 16-bit SPI interface (DRV8316R) or hardware pin-based configuration (DRV8316T)).
