L6470PD datasheet(33/70 Pages) STMICROELECTRONICS

部件名	L6470PD

功能描述	dSPIN fully integrated microstepping motor driver with motion engine and SPI

PDF	70 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

33 / 70 page

L6470

Functional description

Doc ID16737 Rev 5

33/70

6.18

FLAG pin

By default, an internal open drain transistor pulls the FLAG pin to ground when at least one

of the following conditions occurs:

●

Power-up or standby/reset exit

●

Stall detection on A bridge

●

Stall detection on B bridge

●

Overcurrent detection

●

Thermal warning

●

Thermal shutdown

●

UVLO

●

Switch turn-on event

●

Wrong command

●

Non-performable command.

It is possible to mask one or more alarm conditions by programming the ALARM_EN

low, the alarm condition is masked and it does not cause a FLAG pin transition; all other

actions imposed by alarm conditions are performed anyway. In the case of daisy chain

configuration, FLAG pins of different ICs can be or-wired to save host controller GPIOs.

L6470PD 数据表(PDF) 33 Page - STMicroelectronics