DRV8889-Q1_V02 datasheet(48/88 Pages) TI

tên linh kiện	DRV8889-Q1

Giải thích chi tiết về linh kiện	DRV8889-Q1, DRV8889A-Q1 Automotive Stepper Driver with Integrated Current Sense, 1/256 Micro-Stepping, and Stall Detection

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Table 7-23. Control Registers Summary Table

Address

Register Name

Section

0x03

CTRL1

Go

0x04

CTRL2

Go

0x05

CTRL3

Go

0x06

CTRL4

Go

0x07

CTRL5

Go

0x08

CTRL6

Go

0x09

CTRL7

Go

7.6.6 CTRL1 Control Register (address = 0x03)

CTRL1 control is shown in Figure 7-36 and described in Table 7-24.

Read/Write

Figure 7-36. CTRL1 Control Register

7

6

5

4

3

2

1

0

TRQ_DAC [3:0]

RSVD

SLEW_RATE [1:0]

R/W-0000b

R/W-00b

Table 7-24. CTRL1 Control Register Field Descriptions

Bit

Field

Type

Default

Description

7-4

TRQ_DAC [3:0]

R/W

0000b

0000b = 100%

0001b = 93.75%

0010b = 87.5%

0011b = 81.25%

0100b = 75%

0101b = 68.75%

0110b = 62.5%

0111b = 56.25%

1000b = 50%

1001b = 43.75%

1010b = 37.5%

1011b = 31.25%

1100b = 25%

1101b = 18.75%

1110b = 12.5%

1111b = 6.25%

3-2

RSVD

R/W

00b

Reserved

1-0

SLEW_RATE [1:0]

R/W

00b

00b = 10-V/µs

01b = 35-V/µs

10b = 50-V/µs

11b = 105-V/µs

7.6.7 CTRL2 Control Register (address = 0x04)

CTRL2 is shown in Figure 7-37 and Figure 7-38 and described in Table 7-25.

DRV8889-Q1

SLVSEE9C – APRIL 2020 – REVISED AUGUST 2020

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Texas Instruments	DRV8889-Q1	1Mb / 58P	[Old version datasheet] DRV8889-Q1 Automotive Stepper Driver with Integrated Current Sense, 1/256 Micro-Stepping, and Stall Detection

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