DRV8845RHHR
Active35-V, 1.5-A QUAD H-BRIDGE MOTOR DRIVER WITH SMART TUNE TECHNOLOGY
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DRV8845RHHR
Active35-V, 1.5-A QUAD H-BRIDGE MOTOR DRIVER WITH SMART TUNE TECHNOLOGY
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Technical Specifications
Parameters and characteristics for this part
| Specification | DRV8845RHHR |
|---|---|
| Applications | Printer |
| Current - Output | 1.5 A |
| Function | Driver - Fully Integrated, Control and Power Stage |
| Interface | PWM |
| Motor Type - AC, DC | Brushed DC |
| Motor Type - Stepper | Bipolar |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Half Bridge (8) |
| Package / Case | 36-VFQFN Exposed Pad |
| Step Resolution | 1/4, 1/2, 1 |
| Supplier Device Package | 36-VQFN (6x6) |
| Technology | Power MOSFET |
| Voltage - Load [Max] | 38 V |
| Voltage - Load [Min] | 4.5 V |
| Voltage - Supply [Max] | 38 V |
| Voltage - Supply [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 3.48 | |
| 10 | $ 3.13 | |||
| 25 | $ 2.95 | |||
| 100 | $ 2.56 | |||
| 250 | $ 2.43 | |||
| 500 | $ 2.18 | |||
| 1000 | $ 1.84 | |||
| Digi-Reel® | 1 | $ 3.48 | ||
| 10 | $ 3.13 | |||
| 25 | $ 2.95 | |||
| 100 | $ 2.56 | |||
| 250 | $ 2.43 | |||
| 500 | $ 2.18 | |||
| 1000 | $ 1.84 | |||
| Tape & Reel (TR) | 4000 | $ 1.20 | ||
| LCSC | Piece | 1 | $ 1.81 | |
| 10 | $ 1.77 | |||
| 30 | $ 1.74 | |||
| 100 | $ 1.71 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.15 | |
| 100 | $ 1.78 | |||
| 250 | $ 1.28 | |||
| 1000 | $ 0.96 | |||
Description
General part information
DRV8845 Series
The DRV8845 is a quad full-bridge driver for a wide variety of industrial applications. The device can be used for driving up to two stepper motors or up to four brushed-DC motors. Each full-bridge output is rated up to 1.5 A and 38 V. The DRV8845 includes pulse width modulation (PWM) current regulators, along with 2- bit nonlinear DACs (digital-to-analog converters) that allow stepper motors to be controlled in full, half, and quarter steps; and DC motors in forward, reverse, and coast modes.
The PWM current regulator uses the smart tune decay mode for motor audible noise and vibration reduction, increased accuracy, and reduced power dissipation. Internal synchronous rectification control circuitry is provided to improve power dissipation during PWM operation.
Protection features include thermal shutdown with hysteresis (OTSD), undervoltage lockout (UVLO) and overcurrent protection (OCP). Special power up sequencing is not required.