Overview
The DRV10987SPWPR, produced by Texas Instruments, is a 12-V to 24-V nominal, 3-phase sensorless sinusoidal control BLDC (Brushless DC) motor driver. This device is designed for cost-sensitive, low-noise, and low-external-component-count applications, particularly in fan and pump systems. It features integrated power MOSFETs, providing continuous drive current up to 2 A and peak current up to 3 A. The DRV10987SPWPR uses a proprietary sensorless control scheme to deliver continuous sinusoidal drive, reducing pure tone acoustics associated with commutation. The device is available in a thermally-efficient HTSSOP (PWP) package with 24 pins and an exposed thermal pad, operating within an ambient temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Operation Voltage Range | 6.2 V to 28 V |
| Drive Current | 2 A Continuous, 3 A Peak |
| On-Resistance (DS(on)) | 250 mΩ at T_A = 25°C |
| Package Type | HTSSOP (PWP), 24 pins |
| Ambient Temperature Range | –40°C to 125°C |
| Integrated Regulators | 5 V Buck Converter, 3.3 V LDO |
| Standby Current | 8.5 mA (DRV10987S), 48 µA (DRV10987D) |
| Protection Features | Overcurrent, Lock Detection, AVS, UVLO, Overvoltage, Thermal Warning and Shutdown |
Key Features
- Sensorless sinusoidal 180° commutation scheme for reduced noise and pure tone acoustics.
- Configurable output PWM slew rate and frequency for EMI management.
- Initial position-detect algorithm to avoid back-spin during start-up.
- No external sense resistor required.
- Flexible user interface options: I²C interface, dedicated SPEED pin (analog or PWM input), dedicated FG pin for TACH feedback.
- Forward-reverse control with DIR pin.
- Spin-up profile customizable with EEPROM.
- Integrated buck converter (5 V, 100 mA) and LDO (3.3 V, 20 mA).
- Thermally enhanced package with exposed thermal pad.
Applications
The DRV10987SPWPR is specifically designed for cost-sensitive, low-noise, and low-external-component-count applications. Key use cases include:
- Fan systems: Ideal for applications requiring quiet and efficient fan operation.
- Pump systems: Suitable for pump applications that need smooth and quiet operation.
- Other motor control applications: Can be used in various motor control scenarios where sensorless sinusoidal control is beneficial.
Q & A
- What is the operating voltage range of the DRV10987SPWPR?
The operating voltage range is from 6.2 V to 28 V.
- What is the maximum continuous drive current of the DRV10987SPWPR?
The maximum continuous drive current is 2 A, with a peak current of 3 A.
- What type of package does the DRV10987SPWPR come in?
The device is available in a thermally-efficient HTSSOP (PWP) package with 24 pins and an exposed thermal pad.
- What are the integrated regulators available in the DRV10987SPWPR?
The device includes a 5 V buck converter and a 3.3 V LDO.
- What are the standby and sleep current values for the DRV10987SPWPR?
The standby current is 8.5 mA (DRV10987S), and the sleep current is 48 µA (DRV10987D).
- What protection features are included in the DRV10987SPWPR?
The device features overcurrent protection, lock detection, anti-voltage surge (AVS) protection, undervoltage lockout (UVLO), overvoltage protection, and thermal warning and shutdown.
- How can the motor speed be controlled and monitored with the DRV10987SPWPR?
The motor speed can be controlled through PWM, analog, or I²C inputs, and feedback is available through the FG pin and the I²C interface.
- Can the spin-up profile of the DRV10987SPWPR be customized?
Yes, the spin-up profile can be customized using EEPROM.
- What is the ambient temperature range for the DRV10987SPWPR?
The ambient temperature range is from –40°C to 125°C.
- Is an external sense resistor required for the DRV10987SPWPR?
No, an external sense resistor is not required.
