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L9945 датащи(PDF) 78 Page - STMicroelectronics

номер детали L9945
подробное описание детали  Automotive fully configurable 8-channel High/Low side MOSFET pre-driver suitable for 12 V and 24 V systems
PDF  144 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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L9945 датащи(HTML) 78 Page - STMicroelectronics

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[23:22] TDIAG_CONFIG_03: OFF state diagnostic blanking/filter timer for output 03. 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_03: 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_03: 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_03: 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_03: 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_03: 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
[8] PROT_CONFIG_03: Output re-engagement strategy. Specifies how channel reactivation must be performed following an OC
event
0: output re-engagement with control signal switching event
1: output re-engagement after diagnostic readout and control signal switching event
Reset: 0
Reset Condition: POR, NRES
L9945
Functional description
DS12275 - Rev 10
page 78/144



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