MP6546

– 22V, 3A PEAK, 3-PHASE BLDC DRIVER WITH 1MHZ I2C INTERFACE

MP6546 Rev. 1.0

MonolithicPower.com

18

3/20/2023

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ALIGN_MOD (0Ah)

The ALIGN_MOD command configures the angle source used in vector control mode.

Bits

Name

Description

15:11

RESERVED

Reserved.

10

ALN_MD

0: The angle used in vector control mode is from an external sensor

1: The angle used in vector control mode is from register ANGLE_T[11:0]

9:0

RESERVED

Reserved.

ANGLE (0Ch)

The ANGLE command shows the mechanical angle from external sensor.

Bits

Name

Description

15

FAULT

Integrated error indication bit.

14:0

ANGLE[14:0]

The mechanical angle in one cycle.

FAULT_FLAG (0Dh)

The FAULT_FLAG command shows the status of each fault type.

Bits

Name

Description

15:12

RESERVED

Reserved.

11

SCPF

Short-circuit protection (SCP) flag.

10

TSDF

Thermal shutdown (TSD) flag.

9

OVPF

Over-voltage protection (OVP) flag.

8

OCPF

Over-current protection (OCP) flag.

7:0

INL_COMP[7:0]

INL compensation value at the current position.

NOR_MOD (0Fh)

The NOR_MOD command controls when to enter work mode.

Bits

Name

Description

15:0

NOR_MOD

Write to this register to enter work mode.

STB_MOD (10h)

The STB_MOD command controls when to enter standby mode.

Bits

Name

Description

15:0

STB_MOD

Write to this register to enter standby mode.

SPI_CMD (11h)

The SPI_CMD command configures SPI communication.

Bits

Name

Description

15:13

CMD_CODE[2:0]

0: Sensor angle read

1: Sensor register read

2: Sensor register write

12:8

SPI_REGADDR[4:0]

Set the sensor register address.

7:0

SPI_DATA[7:0]

Read/Write the sensor register value.