L6470HTR - ST Microelectronics

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

Part No

L6470HTR
Manufacturer

ST Microelectronics
ChipWorker Part#

CW2532269
Category

Motor Driver
Package

HTSSOP-28
Description

Microstepping Motor Driver 3.3V 28Pin HTSSOP T/R
Documentation

Datasheet

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L6470HTR Specifications

Attribute	Attribute Value

Part Number	L6470HTR
Manufacturer	ST Microelectronics
ChipWorker Part#	CW2532269
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
Rise Time	300 ns
Fall Time	375 ns
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-25 ℃
Supply Voltage	3.3V, 5V
Supply Voltage (Max)	3.3 V
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Operating Temperature	-40℃ ~ 150℃ (TJ)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

The L6470 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 unique control system, a true 1/128 steps 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 registers set. All commands and data registers, including those used to set analogue values (i.e. current control value, 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, motor stall) allows the design of a fully protected application, as required by the most demanding motor control applications.
**Key Features**
Operating voltage: 8 - 45 V
7.0 A out peak current (3.0 A r.m.s. )
Low RDS(on) Power MOSFETs
Programmable speed profile and positioning
Programmable power MOS slew rate
Up to 1/128 microstepping
Sensorless stall detection
SPI interface
Low quiescent and standby currents
Programmable non-dissipative overcurrent protection on high and low-side
Two-levels of overtemperature protection

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