L6474 datasheet(36/51 Pages) STMICROELECTRONICS

Part #	L6474

Description	easySPIN ??fully integrated microstepping motor driver

PDF	51 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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36 / 51 page

Programming manual

L6474

36/51

Doc ID 022529 Rev 2

9.1.8

ADC_OUT

The ADC_OUT register contains the result of the analog to digital conversion of the ADCIN

pin voltage.

Any attempt to write to the register causes the command to be ignored and the

NOTPERF_CMD flag to rise (see Section 9.1.13).

9.1.9

OCD_TH

The OCD_TH register contains the overcurrent threshold value (see Section 6.9 for details).

The available range is from 375 mA to 6 A, steps of 375 mA as shown in Table 17.

Table 16.

ADC_OUT value and torque regulation feature

VADCIN/ VREG

ADC_OUT [4..0]

Output current amplitude

125 mA

1/32

250 mA

30/32

3.875 A

31/32

4 A

Table 17.

Overcurrent detection threshold

OCD_TH [3..0]

Overcurrent detection threshold

375 mA

750 mA

5.625 A

6 A

L6474 Datasheet(PDF) 36 Page - STMicroelectronics