STA380WS datasheet(38/48 Pages) STMICROELECTRONICS

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STA380WS

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DocID024426 Rev 1

6.9

Reserved registers (addr 0x2E, 0x2F, 0x30, 0x31)

These registers are not to be used.

6.10

Postscale registers (addr 0x32, 0x33)

Postscale

The STA380WS provides one additional multiplication after the last interpolation stage and

the distortion compensation on each channel, which can be used to limit the maximum

modulation index and therefore the peak current through the power device. The register

values represent an 8-bit signed fractional number. This number is extended to a 24-bit

number, by adding zeros to the right, and then directly multiplied by the data on that

Table 45. Status bits description

Bit

R/W

RST

Name

Description

TWARN

Thermal warning:

0: junction temperature is close to the fault condition

1: normal operation

TFAULT

Thermal fault:

0: junction temperature limit detection

1: normal operation

OCWARN

Overcurrent warning:

0: warning

1: normal operation

OCFAULT

Overcurrent fault:

0: fault detected

1: normal operation

Reserved

UVFAULT

Undervoltage warning:

0: VCCx below lower voltage threshold

1: normal operation

FAULT

Power bridge fault:

0: fault detected

1: normal operation

PLLUL

PLL lock:

0: locked

1: not locked

C1PS7

C1PS6

C1PS5

C1PS4

C1PS3

C1PS2

C1PS1

C1PS0

01111111

C2PS7

C2PS6

C2PS5

C2PS4

C2PS3

C2PS2

C2PS1

C2PS0

01111111

Obsolete

Product(s)

- Obsolete

Product(s)

STA380WS Datasheet(PDF) 38 Page - STMicroelectronics

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