L6472HTR - ST Microelectronics

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

L6472HTR
Manufacturer

ST Microelectronics
ChipWorker Part#

CW2099587
Category

Motor Driver
Package

HTSSOP-28
Description

Specifications: Family: PMIC - Motor and Fan Controllers, Drivers ; Series: dSPIN ; Applications: Stepper Motor Driver, 2 Phase ; Evaluation Tools: Available ; Number of Outputs: 1 ; Current - Output: 3A ; Voltage - Load: 8V ~ 45V ; Voltage - Suppl
Documentation

Datasheet

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L6472HTR Specifications

Attribute	Attribute Value

Part Number	L6472HTR
Manufacturer	ST Microelectronics
ChipWorker Part#	CW2099587
Category	Motor Driver
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	28 Pin
Case/Package	HTSSOP-28
Number of Outputs	1 Output
Output Voltage	45 V
Output Current	3 A
Number of Positions	28 Position
Power Dissipation	5000 mW
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	5000 mW
Supply Voltage	3.3V, 5V
Supply Voltage (Max)	3.3 V
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Operating Temperature	-40℃ ~ 150℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

The L6472 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 low RDS(on)DMOS full bridge with all of the power switches equipped with an accurate on-chip current sensing circuitry suitable for non dissipative current control and overcurrent protection. Thanks to a new current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations. 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 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 L6472 device “bullet proof”, as required by the most demanding motor control applications.
**Key Features**
Operating voltage: 8 - 45 V
7.0 A output peak current (3.0 A r.m.s. )
Low RDS(on) power MOSFETs
Programmable speed profile
Programmable power MOSFET slew rate
Up to 1/16 microstepping
Predictive current control with adaptive decay
Non dissipative current sensing
SPI interface
Low quiescent and standby currents
Programmable non dissipative overcurrent protection on all power MOSFETs
Two levels of overtemperature protection

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