L9945 datasheet(88/151 Pages) STMICROELECTRONICS

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[23:22] TDIAG_CONFIG_04: OFF state diagnostic blanking/filter timer for output 04. It has no effect if HB1_config =1 &

HB1_tdiag_ext_config = 0

00: 25.6 µs

01: 61.2 µs

10: 105.6 µs

11: 150 µs

Reset: 11

Reset Condition: POR, NRES

[21] OC_READ_04: Selection of the OC threshold to read. Fixed threshold or actual threshold

0: Read fixed OC threshold

1: Read actual OC threshold

Reset: 0

Reset Condition: POR, NRES

[20:15] OC_CONFIG_04: Selection of over current detection threshold. 6 bit to code for the OC detection threshold

See Table 40

Reset: 000000

Reset Condition: POR, NRES

[14:13] OC_TEMP_COMP_04: Over current detection with temperature compensation (see note of Table 30. SPI MOSI list)

00: No OC compensation

01: ΔT < 60 °C

10: ΔT < 40 °C

11: ΔT < 25 °C

Reset: 00

Reset Condition: POR, NRES

[12] OC_BATT_COMP_04: Over current detection with battery compensation

0: Battery compensation de-activated

1: Battery compensation activated

Reset: 0

Reset Condition: POR, NRES

[11:9] TBLANK_OC_04: When DSM is selected, it specifies the OC blanking time to allow VDS settling. When Rshunt is selected, it

only determines the assertion of the 'No OC failure' diagnostic code (once expired).

000: 11.1 µs

001: 15.6 µs

010: 20 µs

011: 31.1 µs

100: 42.2 µs

101: 53.3 µs

110: 97.8 µs

111: 142.2 µs

Reset: 000

Reset Condition: POR, NRES

L9945

SPI MOSI/MISO list

DS12275 - Rev 8

page 88/151

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