POWERSTEP01TR datasheet(61/92 Pages) STMICROELECTRONICS

61 / 92 page

DocID025022 Rev 5

61/92

powerSTEP01

Programming manual

11.1.21

OCD_TH

The OCD_TH register contains the overcurrent threshold value (Section 7.9 on page 30 for

details). The available range is from 31.25 mV to 1 V, steps of 31.25 mV, as shown in

Table 25.

11.1.22

STALL_TH

This register is specific for voltage mode driving (see Section 8 on page 38).

The STALL_TH register contains the stall detection threshold value. The available range is

from 31.25 mV to 1 V with a resolution of 31.25 mV.

11.1.23

STEP_MODE

The STEP_MODE register has the following structure:

The CM_VM bit sets the current control method between voltage and current mode:

Table 25. Overcurrent detection threshold

OCD_TH [4 … 0]

Overcurrent detection threshold

31.25 mV

62.5 mV

……

…

968.75 mV

1 V

Table 26. Stall detection threshold

STALL_th [4 … 0]

Stall detection threshold

31.25 mV

62.5 mV

……

…

968.75 mV

1 V

Table 27. STEP_MODE register

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

SYNC_EN

SYNC_SEL

CM_VM

STEP_SEL

Table 28. Control mode selection

CM_VM

Control mode

Voltage mode

Advanced current control (current mode)

POWERSTEP01TR 数据表(PDF) 61 Page - STMicroelectronics

POWERSTEP01TR 数据表(HTML) 61 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92

数据表下载