L6474easySPIN - fully integrated microstepping motor driver
The L6474, 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, dead time, etc.) are sent through a standard 5 Mbit/s SPI.
A very rich set of protections (thermal, low bus voltage, overcurrent) makes the L6474 “bullet proof” as required by the most demanding motor control applications.
- Operating voltage: 8 - 45 V
- 7.0 A output peak current (3.0 A r.m.s.)
- Low RDS(on)Power MOSFETs
- Programmable power MOS slew-rate
- Up to 1/16 microstepping
- Current control with adaptive decay
- Non-dissipative current sensing
- SPI interface
- Low quiescent and standby currents
- Programmable non-dissipative overcurrent protection on all power MOS
- Two-level overtemperature protection
DS8773: easySPIN – fully integrated microstepping motor driver
AN4158: Peak current control with automatic decay adjustment and predictive current control: basics and setup
AN4290: dSPIN™, cSPIN™ and easySPIN™ family communication protocol
Design Notes & Tips
DT0003: Implementing fast decay mode chopping using the L6506
Presentations & Training Material
PowerSPIN - Monolithic motor control ICs
STM32 F1 firmware library for easySPIN (L6474) motor driver - quick guide
Sample & BuyTop
|Part Number||Marketing Status||Package||Packing Type||Operating Temperature (min)||Operating Temperature (max)||Automotive Grade||Order From ST||Unit Price (US$)*|
|Distributor Availability||RoHS Compliance Grade||Download
|L6474HTR||Active||HTSSOP28||Tape And Reel||-40||150||_||2.5|
|L6474PDTR||Active||PowerSO 36||Tape And Reel||-40||150||_||2.851|
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