Overview
The DRV8840PWP, produced by Texas Instruments, is a highly integrated motor driver IC designed to drive single brushed DC motors. This device features a single H-bridge configuration with current-control PWM circuitry, making it an ideal solution for various automated equipment applications such as printers, scanners, office automation machines, gaming machines, factory automation, and robotics.
The DRV8840 integrates a single NMOS H-bridge, a charge pump, current sense, current regulation, and comprehensive device protection circuitry. It operates over a wide supply voltage range of 8.2 V to 45 V and can supply up to 5-A peak or 3.5-A continuous output current with proper heatsinking at 24 V and 25°C.
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 (HS + LS) | 0.4 | Ω |
| Current Control Levels | Up to 32 levels (5-bit control) | |
| Built-In Reference Output | 3.3 V | V |
| Package Type | 28-pin HTSSOP with PowerPAD™ | |
| Thermal Shutdown Temperature | 150 - 160 °C | °C |
| Overcurrent Protection Trip Level | 6 A | A |
Key Features
- Single H-Bridge Current-Control Motor Driver
- Wide operating supply voltage range of 8.2 V to 45 V
- 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
- Thermal enhanced surface mount package with PowerPAD™
- Protection features including overcurrent protection (OCP), thermal shutdown (TSD), VM undervoltage lockout (UVLO), and fault condition indication pin (nFAULT)
- Programmable decay mode for braking or coasting of the motor when disabled
- Low power sleep mode to reduce power consumption when not driving the motor
Applications
- Printers
- Scanners
- Office automation machines
- Gaming machines
- Factory automation
- Robotics
Q & A
- What is the operating supply voltage range of the DRV8840?
The DRV8840 operates over a supply voltage range of 8.2 V to 45 V.
- What is the maximum drive current of the DRV8840 at 24 V and 25°C?
The DRV8840 can supply up to 5-A peak or 3.5-A continuous output current at 24 V and 25°C with proper heatsinking.
- What type of current control does the DRV8840 offer?
The DRV8840 features a five-bit current control, allowing up to 32 discrete current levels.
- What protection features are integrated into the DRV8840?
The DRV8840 includes protection features such as overcurrent protection (OCP), thermal shutdown (TSD), VM undervoltage lockout (UVLO), and a fault condition indication pin (nFAULT).
- What is the package type of the DRV8840?
The DRV8840 is available in a 28-pin HTSSOP package with PowerPAD™.
- Can the decay mode of the DRV8840 be programmed?
Yes, the decay mode of the DRV8840 is programmable to allow braking or coasting of the motor when disabled.
- Does the DRV8840 have a built-in reference output?
Yes, the DRV8840 has a built-in 3.3-V reference output.
- What is the thermal shutdown temperature range of the DRV8840?
The thermal shutdown temperature range of the DRV8840 is between 150°C and 160°C.
- What is the overcurrent protection trip level of the DRV8840?
The overcurrent protection trip level of the DRV8840 is 6 A.
- Is the DRV8840 eco-friendly?
Yes, the DRV8840 is eco-friendly, being RoHS compliant and free of Sb/Br).
