L6474H - ST Microelectronics

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

Part No

L6474H
Manufacturer

ST Microelectronics
ChipWorker Part#

CW40158769
Category

Motor Driver
Package

HTSSOP-28
Description

STMICROELECTRONICS L6474H Motor Driver, Micro stepping, 3.3V to 5V supply, 45V/3A/2Outputs, HTSSOP-28
Documentation

Datasheet

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L6474H Specifications

Attribute	Attribute Value

Part Number	L6474H
Manufacturer	ST Microelectronics
ChipWorker Part#	CW40158769
Category	Motor Driver
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	28 Pin
Case/Package	HTSSOP-28
Supply Voltage (DC)	3.30V (min)
Number of Outputs	2 Output
Output Voltage	45 V
Output Current	3 A
Number of Positions	28 Position
Switching Frequency	512 kHz
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	3.3V, 5V
Supply Voltage (Max)	5 V
Supply Voltage (Min)	3.3 V
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Size-Length	9.8 mm
Size-Width	4.5 mm
Size-Height	1.05 mm
Operating Temperature	-40℃ ~ 150℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

The L6474H is a fully integrated microstepping Motor Driver realized in analogue 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 (current control value, current protection trip point, dead time) are sent through a standard 5Mbps 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.
Low RDS(on) power MOSFETs
Programmable power MOSFET slew rate
Up to 1/16 microstepping
Current control with adaptive decay
Non-dissipative current sensing
SPI interface
Low quiescent and standby current
Programmable non dissipative overcurrent protection on all power MOSFETs
Two-level over-temperature protection
5W Total power dissipation (TA=25°C)

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