L6470(2012) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

L6470
(Rev.:2012)

dSPIN™ fully integrated microstepping motor driver with motion engine and SPI

STMicroelectronics 

Block diagram

1

Block diagram

Figure 1. Block diagram

L6470

STBY/RST

FLAG

VDD

OSCIN OSCOUT ADCIN

16MHz

Oscillator

Ext. Osc. driver

&

Clock gen.

ADC

VREG

CP

VBOOT

3V

Voltage Reg.

Charge

pump

V boot

HS A1

V DD

CS

CK

SDO

SDI

BUSY/SYNC

STCK

V DD

SW

DGND

Control

Logic

HS A1

LS A1

HS A2

LS A2

HS B1

LS B1

HS B2

LS B2

LS A1

V boot

HS B1

Temperature

sensing

Current DACs

&

Comparators

LS B1

Current

sensing

V boot

HS A2

LS A2

V boot

HS B2

LS B2

VSA

VSA

OUT1A

OUT2A

PGND

VSB

VSB

OUT1B

OUT2B

PGND

AGND

AM02377v1

8/70

Doc ID16737 Rev 5

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