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L9945 データシート(PDF) 71 Page - STMicroelectronics

部品番号 L9945
部品情報  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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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9945 データシート(HTML) 71 Page - STMicroelectronics

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RESPONSE 1
Frame partitioning
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Description:
OUT1 configuration and H-Bridge 1 diagnostic time
Reset:
0x1EC00001
[31:28] C: Response to command 1
Reset: 0001
Reset Condition: -
[27] R/W: Bit to read/write configuration
0: Write & request read
1: Request read only
Reset: 1
Reset Condition: POR, NRES
[26:25] HB1_DEAD_TIME: H-bridge 1 dead time to avoid cross conduction
00: 1 µs
01: 2 µs
10: 4 µs
11: 8 µs
Reset: 11
Reset Condition: POR, NRES
[24] HB1_TDIAG_EXT_CONFIG: Selection of tdiag timers for H-bridge 1. This function only applies when HB1_config = 1
0: H-bridge tdiag timers for HB1. The programmed TDIAG_CONFIG_01 will be extended to
CH2, CH3 and CH4
1: Standard tdiag timers for HB1. The programmed TDIAG_CONFIG_01 is valid only for CH1,
while CH2, CH3 and CH4 must be set individually.
Reset: 0
Reset Condition: POR, NRES
[23:22] TDIAG_CONFIG_01:
H-bridge 1 OFF state diagnostic blanking/filter timer. This values are valid only when HB1_tdiag_ext_config = 0 & HB1_config
= 1
00: 11.2 µs
01: 28.9 µs
10: 40 µs
11: 51.2 µs
L9945
Functional description
DS12275 - Rev 10
page 71/144



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