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L99ASC03 Datasheet(PDF) 61 Page - STMicroelectronics

Part # L99ASC03
Description  Brushless / sensorless 3-phase motor pre-driver for automotive applications
PDF  73 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99ASC03 Datasheet(HTML) 61 Page - STMicroelectronics

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DocID023504 Rev 7
61/73
L99ASC03
ST-SPI Protocol
72
4.4.8
Device Control Register 7
Device Control Register 7
Address:
0x7
Type:
R/W
76
54
32
10
Bit name
HOFFCONT
CCT(2)
CCT(1)
CCT(0)
CPLOWM
ISTEST(3)
ISTEST(2)
ISTEST(1)
Default values
01
11
10
00
Bit Bit description
[7] HOFFCONT: HARDOFF control
0: the full current discharge capability is activated when programmed cross-current time has
elapsed
1: the full current discharge capability is activated upon the turn-on command of the
complementary switch
[6:4] CTT: cross-current time.
See Table 18: Gate driver for external MOSFET
[3] CPLOWM: charge pump undervoltage monitoring
0: in case of charge pump undervoltage, only the CPLOW flag is set (global warning reported)
1: in case of charge pump undervoltage, the gate drivers are deactivated (functional error
reported)
[2] ISTEST(3): sink current enable (used for open-load and short-circuit test)
0: disabled
1: sink current at SH3
[1] ISTEST(2): sink current enable (used for open-load and short-circuit test)
0: disabled
1: sink current at SH2
[0] ISTEST(1): sink current enable (used for open-load and short-circuit test)
0: disabled
1: sink current at SH1



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