STSPIN820 datasheet(11/29 Pages) STMICROELECTRONICS

Part #	STSPIN820

Description	Advanced 256 microsteps integrated motor driver with step-clock and direction interface

PDF	29 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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11 / 29 page

DocID031065 Rev 2

11/29

STSPIN820

Pin connection

OUTB1

Power output Power bridge output side B1

SENSEB2

Power output Sense output of the bridge B

SENSEB1

Power output Sense output of the bridge B

SNSB

Analog input

Full-bridge B current regulator sense input

STBY\RESET

Logic input

Standby\reset input.

When forced low the device enters in low consumption

mode.

EN\FAULT

Logic input\

open-drain

output

Logic input 5 V compliant with open-drain output.

This is the power stage enable (when low, the power

stage is turned off) and is forced low through the

integrated open-drain MOSFET when a failure occurs.

DECAY

Logic input

Decay mode selection input.

High logic level sets slow decay mode; low logic level

sets mixed decay mode (see Section 5.3 on page 16

for more details).

STCK

Logic input

Step clock input

DIR

Logic input

Direction input

MODE1

Logic input

Step mode selection input 1

MODE2

Logic input

Step mode selection input 2

MODE3

Logic input

Step mode selection input 3

TOFF

Analog input

Internal oscillator frequency adjustment

Table 6. Pin description (continued)

No.

Name

Type

Function

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