Overview
The DRV8840PWPR from Texas Instruments is a highly integrated motor driver solution designed for driving brushed DC motors in various applications. This single H-bridge current-control motor driver is optimized for use in printers, scanners, office automation machines, gaming machines, factory automation, and robotics. The device features a robust design with N-channel power MOSFETs configured as full H-bridges to drive motor windings efficiently.
The DRV8840PWPR operates within an 8.2-V to 45-V supply voltage range and can deliver up to 5-A peak or 3.5-A continuous output current with proper heatsinking. It includes a simple parallel digital control interface compatible with industry-standard devices and supports programmable decay modes for motor braking or coasting.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage Range | 8.2 - 45 | V |
| Maximum Drive Current at 24 V, T_A = 25°C | 5 | A |
| Continuous Output Current with proper heatsinking | 3.5 | A |
| MOSFET R_DS(on) Typical | 0.4 | Ω (HS + LS) |
| Current Control Levels | Up to 32 | - |
| Built-In Reference Output | 3.3 | V |
| Package Type | 28-pin HTSSOP with PowerPAD™ | - |
| Thermal Resistance (Junction-to-Ambient) | 31.6 | °C/W |
Key Features
- Single H-bridge current-control motor driver
- Five-bit current control allowing up to 32 current levels
- Low MOSFET R_DS(on) of 0.4 Ω (HS + LS)
- Built-in 3.3-V reference output
- Parallel digital control interface compatible with industry-standard devices
- Programmable decay mode for braking or coasting of the motor
- Thermal enhanced surface mount package (HTSSOP with PowerPAD™)
- Protection features: overcurrent protection (OCP), thermal shutdown (TSD), VM undervoltage lockout (UVLO), and fault condition indication pin (nFAULT)
Applications
- Printers
- Scanners
- Office automation machines
- Gaming machines
- Factory automation
- Robotics
Q & A
- What is the operating supply voltage range of the DRV8840PWPR?
The operating supply voltage range is from 8.2 V to 45 V.
- What is the maximum drive current of the DRV8840PWPR at 24 V and 25°C?
The maximum drive current is 5 A at 24 V and 25°C.
- What type of package does the DRV8840PWPR come in?
The DRV8840PWPR is available in a 28-pin HTSSOP package with PowerPAD™.
- What protection features are included in the DRV8840PWPR?
The device includes overcurrent protection (OCP), thermal shutdown (TSD), VM undervoltage lockout (UVLO), and a fault condition indication pin (nFAULT).
- How many current levels can be controlled by the DRV8840PWPR?
The DRV8840PWPR allows for up to 32 current levels through its five-bit current control scheme.
- What is the typical MOSFET R_DS(on) of the DRV8840PWPR?
The typical MOSFET R_DS(on) is 0.4 Ω (HS + LS).
- Does the DRV8840PWPR have a built-in reference output?
Yes, it has a built-in 3.3-V reference output.
- What type of control interface does the DRV8840PWPR use?
The DRV8840PWPR uses a parallel digital control interface compatible with industry-standard devices.
- Can the decay mode of the DRV8840PWPR be programmed?
Yes, the decay mode is programmable to allow braking or coasting of the motor when disabled.
- Is the DRV8840PWPR eco-friendly?
Yes, the DRV8840PWPR is eco-friendly, being RoHS compliant and free of Sb/Br.
