Overview
The DRV8844PWPR, produced by Texas Instruments, is a quad ½-H-bridge motor driver IC designed to drive a variety of loads including DC motors, stepper motors, and solenoids. This device integrates four individually controllable ½-H-bridge drivers, each capable of supplying up to 2.5-A peak or 1.75-A RMS output current per channel. It features full individual half-bridge control, low MOSFET on-resistance, and a wide operating supply voltage range of 8 V to 60 V. The DRV8844PWPR also includes built-in protection circuits such as overcurrent protection, short circuit protection, undervoltage lockout, and overtemperature protection, ensuring reliable operation in various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Motor Type | Brushed DC, Stepper |
| Output Configuration | Quad ½-H-Bridge |
| Maximum Drive Current | 2.5 A (peak), 1.75 A (RMS) at 24 V, 25°C |
| Operating Supply Voltage Range | 8 V to 60 V |
| Logic Input Voltage | Floating input buffers allow dual (bipolar) supplies (up to ±30 V) |
| Built-In Regulator | 3.3 V, 10 mA LDO regulator |
| Control Interface | Industry standard IN/IN digital control interface |
| Package Type | HTSSOP (28 pins) |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Full individual half-bridge control for each of the four channels
- Low MOSFET on-resistance for efficient operation
- Floating input buffers allowing dual (bipolar) supplies up to ±30 V
- Built-in 3.3-V, 10-mA LDO regulator
- Industry standard IN/IN digital control interface
- Outputs can be connected in parallel for higher current applications
- Thermally enhanced surface mount package with PowerPAD™ for improved heat dissipation
- Internal shutdown functions for overcurrent protection, short circuit protection, undervoltage lockout, and overtemperature protection
Applications
- Textile machines
- Office automation machines
- Gaming machines
- Factory automation
- Robotics
- Motor drive and control systems
- Building automation
- Industrial automation
Q & A
- What is the maximum drive current of the DRV8844PWPR?
The DRV8844PWPR can supply up to 2.5-A peak or 1.75-A RMS output current per channel at 24 V and 25°C.
- What is the operating supply voltage range of the DRV8844PWPR?
The operating supply voltage range is from 8 V to 60 V.
- What types of motors can the DRV8844PWPR drive?
The DRV8844PWPR can drive brushed DC motors, stepper motors, and solenoids.
- Does the DRV8844PWPR have built-in protection circuits?
- What is the package type of the DRV8844PWPR?
The DRV8844PWPR is available in a 28-pin HTSSOP package with PowerPAD™.
- Can the outputs of the DRV8844PWPR be connected in parallel?
- What is the purpose of the floating input buffers in the DRV8844PWPR?
The floating input buffers allow the device to operate with dual (bipolar) supplies up to ±30 V.
- Does the DRV8844PWPR have a built-in regulator?
- What is the control interface of the DRV8844PWPR?
- What is the operating temperature range of the DRV8844PWPR?
