POWERSTEP01 datasheet(63/92 Pages) STMICROELECTRONICS

Part #	POWERSTEP01

Description	System-in-package integrating microstepping controller and 10 A power MOSFETs

PDF	92 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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63 / 92 page

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powerSTEP01

Programming manual

11.1.24

ALARM_EN

The ALARM_EN register allows the selection of which alarm signals are used to generate

the FLAG output. If the respective bit of the ALARM_EN register is set high, the alarm

condition forces the FLAG pin output down.

11.1.25

GATECFG1

The GATECFG1 register has the following structure:

The IGATE parameter selects the sink/source current used by gate driving circuitry to

charge/discharge the respective gate during commutations. Seven possible values ranging

from 4 mA to 96 mA are available, as shown in Table 34.

Table 32. ALARM_EN register

ALARM_EN bit

Alarm condition

0 (LSB)

Overcurrent

Thermal shutdown

Thermal warning

3UVLO

ADC UVLO

Stall detection (voltage mode only)

Switch turn-on event

7 (MSB)

Command error

Table 33. GATECFG1 register

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

WD_EN

TBOOST

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

IGATE

TCC

Table 34. IGATE parameter

IGATE [2 … 0}

Gate current [mA}

POWERSTEP01 Datasheet(PDF) 63 Page - STMicroelectronics

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