Overview
The DRV10987DPWPR, produced by Texas Instruments, is a 3-phase sensorless 180° sinusoidal motor driver designed for cost-sensitive, low-noise, and low-external-component-count applications. This device is particularly suited for fan and pump applications. It features integrated power MOSFETs, allowing it to provide a continuous drive current of up to 2 A and a peak current of 3.5 A. The DRV10987DPWPR operates within a supply voltage range of 6.2 V to 28 V and includes various protection features to ensure reliable operation.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 6.2 V to 28 V |
| Continuous Drive Current | Up to 2 A |
| Peak Drive Current | 3.5 A |
| Integrated Power MOSFETs | Yes |
| On-Resistance (DS(on)) | 250 mΩ at T_A = 25°C |
| Operating Ambient Temperature | –40°C to 125°C |
| Package Type | HTSSOP, 24-pin with exposed thermal pad |
| Standby Current (DRV10987S) | 8.5 mA |
| Sleep Current (DRV10987D) | 48 µA |
| Integrated Buck Converter | 5 V, 100 mA |
| Integrated LDO | 3.3 V, 20 mA |
Key Features
- Dedicated SPEED Pin: Accepts either analog or PWM input
- Dedicated FG Pin: Provides TACH feedback
- Spin-Up Profile Can Be Customized With EEPROM
- Forward-Reverse Control With DIR Pin
- Integrated Buck Converter (5 V, 100 mA) and LDO (3.3 V, 20 mA)
- Protection Features:
- Overcurrent Protection (Phase-to-Phase, Phase-to-GND, and Phase-to-VCC Short Circuits)
- Lock Detection to Detect Rotor Lock Condition
- Anti-Voltage Surge (AVS) Protection
- Undervoltage Lockout (UVLO)
- Overvoltage Protection
- Thermal Warning and Shutdown
- Flexible User Interface Options: PWM, Analog, or I2C Inputs
- Motor Speed Feedback Available Through Both FG Pin and I2C Interface
- Initial Position-Detect Algorithm to Avoid Back-Spin During Start-Up
- No External Sense Resistor Required
- Configurable Output PWM Slew Rate and Frequency for EMI Management
Applications
The DRV10987DPWPR is specifically designed for cost-sensitive, low-noise, and low-external-component-count fan and pump applications. It is ideal for use in various industrial and consumer electronics where efficient and quiet motor operation is crucial.
Q & A
- What is the operating voltage range of the DRV10987DPWPR?
The DRV10987DPWPR operates within a supply voltage range of 6.2 V to 28 V.
- What is the maximum continuous drive current of the DRV10987DPWPR?
The device can provide a continuous drive current of up to 2 A.
- What types of input can the SPEED Pin accept?
The SPEED Pin can accept either analog or PWM input.
- Does the DRV10987DPWPR have integrated voltage regulators?
Yes, it features an integrated buck converter (5 V, 100 mA) and an LDO (3.3 V, 20 mA).
- What protection features are included in the DRV10987DPWPR?
The device includes overcurrent protection, lock detection, anti-voltage surge protection, undervoltage lockout, overvoltage protection, and thermal warning and shutdown.
- How can the motor speed be controlled and monitored?
The motor speed can be controlled through PWM, analog, or I2C inputs, and feedback is available through both the FG pin and the I2C interface.
- What is the purpose of the EEPROM in the DRV10987DPWPR?
The EEPROM allows users to customize the spin-up profile and optimize motor parameters for specific applications.
- What are the standby and sleep current values for the DRV10987DPWPR?
The standby current is 8.5 mA (DRV10987S), and the sleep current is 48 µA (DRV10987D).
- What is the operating ambient temperature range of the DRV10987DPWPR?
The operating ambient temperature range is from –40°C to 125°C.
- What package type is the DRV10987DPWPR available in?
The device is available in a thermally-efficient HTSSOP, 24-pin package with an exposed thermal pad.
