
L6474H
ActiveSTEPPER MOTOR DRIVER WITH UP TO 16 MICROSTEPS WITH SPI AND ADVANCED CURRENT CONTROL
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L6474H
ActiveSTEPPER MOTOR DRIVER WITH UP TO 16 MICROSTEPS WITH SPI AND ADVANCED CURRENT CONTROL
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Technical Specifications
Parameters and characteristics for this part
| Specification | L6474H |
|---|---|
| Applications | General Purpose |
| Current - Output | 3 A |
| Function | Driver - Fully Integrated, Control and Power Stage |
| Interface | SPI |
| Motor Type - Stepper | Bipolar |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Half Bridge (4) |
| Package / Case | 28-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Step Resolution [Max] | 0.0625 |
| Step Resolution [Min] | 1 |
| Supplier Device Package | 28-HTSSOP |
| Technology | DMOS |
| Voltage - Load [Max] | 45 V |
| Voltage - Load [Min] | 8 V |
| Voltage - Supply | 3.3 V, 5 VDC |
Pricing
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Description
General part information
L6474 Series
The L6474 device, realized in analog mixed signal technology, integrates a dual low RDS(on)DMOS full bridge with all power switches equipped with an accurate on-chip current sensing circuitry suitable for non-dissipative current control and overcurrent protections. Thanks to a new current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations.
All data registers, including those used to set analogue values (i.e.: current control value, current protection trip point, deadtime, etc.) are sent through a standard 5 Mbit/s SPI.
A very rich set of protections (thermal, low bus voltage, overcurrent) makes the L6474 device "bullet proof" as required by the most demanding motor control applications.
Documents
Technical documentation and resources