STPM01 datasheet(33/56 Pages) STMICROELECTRONICS

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STPM01

Theory of operation

33/56

010000

RESERVED

010001 17 (1)

010010

BGTC

Bandgap Temperature compensation bits. See figure 4 for details.

010011 19 (1)

010100

CPH

4-bit unsigned data for compensation of phase error, 0°+0.576°.

16 values are possible with a compensation step of 0.0384°. When CPH=0 the

compensation is 0°, when CPH=15 the compensation is 0.576°.

010101

010110

010111 23 (1)

011000

CHV

8-bit unsigned data for voltage channel calibration.

256 values are possible. When CHV is 0 the calibrator is at -12.5% of the

nominal value. When CHV is 255 the calibrator is at +12.5%. The calibration

step is then 0.098%.

011001

011010

011011

011100

011101

011110

011111 31 (1)

100000

CHP

8-bit unsigned data for primary current channel calibration.

256 values are possible. When CHP is 0 the calibrator is at -12.5% of the

nominal value. When CHP is 255 the calibrator is at +12.5%. The calibration

step is then 0.098%.

100001

100010

100011

100100

100101

100110

100111 39 (1)

101000

CHS

8-bit unsigned data for secondary current channel calibration.

256 values are possible. When CHS is 0 the calibrator is at -12.5% of the

nominal value. When CHS is 255 the calibrator is at +12.5%. The calibration

step is then 0.098%.

101001

101010

101011

101100

101101

101110

101111 47 (1)

Table 16.

Configuration bits map

Address

Name

N. of

bits

Description (1)

6-BIT

Binary

DEC

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