DRV8812是TI公司的一款集成FET的步进栅极驱动器产品，DRV8812是具有 4 级电流调节的 1.6A 双极步进电机驱动器（PH/EN 控制器），本页介绍了DRV8812的产品说明、应用、特性等，并给出了与DRV8812相关的TI元器件型号供参考。
DRV8812 - 具有 4 级电流调节的 1.6A 双极步进电机驱动器（PH/EN 控制器） - 集成FET的步进栅极驱动器 - 步进驱动器 - TI公司（Texas Instruments，德州仪器）
- 8.2-V to 45-V Operating Supply Voltage Range
- 1.6-A Maximum Drive Current at 24 V and TA = 25°C
- Dual H-Bridge Current Control Motor Driver
- Drive a Bipolar Stepper or Two DC Motors
- Four Level Winding Current Control
- Multiple Decay Modes
- Mixed Decay
- Slow Decay
- Fast Decay
- Industry Standard Parallel Digital Control Interface
- Low Current Sleep Mode
- Built In 3.3-V Reference Output Small Package and Footprint
- Protection Features
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- VM Undervoltage Lockout (UVLO)
- Fault Condition Indication Pin (nFAULT)
- Automatic Teller Machines
- Money Handling Machines
- Video Security Cameras
- Printers
- Scanners
- Office Automation Machines
- Gaming Machines
- Factory Automation
- Robotics
The DRV8812 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, and can drive a bipolar stepper motor or two DC motors. The output driver block for each consists of N-channel power MOSFET’s configured as full H-bridges to drive the motor windings. The DRV8812 is capable of driving up to 1.6-A of output current (with proper heatsinking, at 24 V and 25°C).
A simple parallel digital control interface is compatible with industry-standard devices. Decay mode is programmable.
Internal shutdown functions are provided for over current protection, short circuit protection, under voltage lockout and overtemperature.
The DRV8812 is available in a 28-pin HTSSOP package with PowerPAD™ and in a 28-pin QFN package PowerPAD™ (Eco-friendly: RoHS & no Sb/Br).
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| DRV8812 | HTSSOP (28) | 9.70 mm x 4.40 mm |
| VQFN (28) | 5.00 mm x 5.00 mm |
