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The L6480 device, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping.
It integrates a dual full bridge gate driver for N-channel MOSFET power stages with embedded non dissipative overcurrent protection. Thanks to a unique voltage mode driving mode which compensates for BEMF, bus voltage and motor winding variations, the microstepping of a true 1/128-step resolution is achieved. The digital control core can generate user defined motion profiles with acceleration, deceleration, speed or target position easily programmed through a dedicated register set. All application commands and data registers, including those used to set analog values (i.e. current protection trip point, deadtime, PWM frequency, etc.) are sent through a standard 5-Mbit/s SPI. A very rich set of protections (thermal, low bus voltage, overcurrent and motor stall) makes the L6480 device “bullet proof”, as required by the most demanding motor control applications.
Key Features
- Operating voltage: 7.5 V - 85 V
- Dual full bridge gate driver for N-channel MOSFETs
- Fully programmable gate driving
- Embedded Miller clamp function
- Programmable speed profile
- Up to 1/128 microstepping
- Sensorless stall detection
- Integrated voltage regulators
- SPI interface
- Low quiescent standby currents
- Programmable non dissipative overcurrent protection
- Overtemperature protection
Circuit Diagram
Development Tools
Embedded Software
Evaluation Tools
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Picture Part number Manufacturer Description 
EVAL6480H -- Fully integrated microstepping motor controller with motion engine and SPI evaluation board EVAL6480H-DISC -- L6480 Discovery: development tool to explore L6480 motor controller 
STEVAL-PCC009V2 -- IBU Motor Control & IPS universal interface Part NumberFully integrated microstepping motor controller with motion engine and SPI evaluation board
L6480 Discovery: development tool to explore L6480 motor controller
IBU Motor Control & IPS universal interface
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L6480H | Active | HTSSOP38 | Industrial | Ecopack2 | |
| L6480HTR | Active | HTSSOP38 | Industrial | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from Distributors | Order from ST | Marketing Status | Package | Packing Type | Temperature (°C) | ECCN (US) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | ||||||||||
| L6480HTR | 2 distributors | Get sample | Active | HTSSOP38 | Tape And Reel | -40 | 150 | EAR99 | PHILIPPINES | 2.671 / 1k | |
| L6480H | 4 distributors | Buy now | Active | HTSSOP38 | Tube | -40 | 150 | EAR99 | PHILIPPINES | 2.671 / 1k | |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
