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L99LD21 Datasheet(PDF) 45 Page - STMicroelectronics

Part # L99LD21
Description  High power LED driver for automotive applications
PDF  73 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99LD21 Datasheet(HTML) 45 Page - STMicroelectronics

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DS11130 Rev 5
45/73
L99LD21
SPI functional description
72
5.4.3
Customer test and trimming registers description
CT: Customer Trimming Register
Address:
0x3Eh
Type:
R/W
Write operation allowed only when CTM_TRIM_COD = 100 and EOT = 0
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9876
543210
Reserved
Table 26. CT: Ctm Trimming Register
Bit
Default
Name
Comment
23÷21
000
CTM_TRIM_COD
Operation Code for Trimming Operation:
011: Execute blank check read
100: Execute selected bit burning
010: Execute margin mode read
011: Execute blank check read
111: Execute end of trimming
001: Execute standard read
20÷19
00
DEF_HLEDCUR
18÷17
00
DEF_DAC1
16÷15
00
DEF_VLEDTOFF1
14
0
DEF_MS
13
0
DEF_BSTDIS
12
0
EOT
End of Ctm Trimming
11÷1
00000000000
—
Reserved
0
Parity Bit
ODD Parity Bit Check



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