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L99LD02 датащи(PDF) 40 Page - STMicroelectronics

номер детали L99LD02
подробное описание детали  Automotive dual-phase boost DC/DC controller
PDF  66 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99LD02 датащи(HTML) 40 Page - STMicroelectronics

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Serial peripheral interface (ST SPI standard)
L99LD02
40/66
DS12448 Rev 3
CR#3: Control Register 3
Address:
0x03h
Type:
R/W
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Unused
BST_OUT_FAIL_FilterTime
BST_FREQ
Table 24. CR#3: Control Register 3
Bit
Default
Name
Description
23÷16
Unused
15÷13
DEF_BOF_FT(000)
BST_OUT_FAIL_FilterTim
e
Filtering time before setting the boost output failure
bit. It takes effect after boost_power_good signal is
“1” for the first time
The boost out fail filtering time shall be
configurable in 8 steps:
000 --> 500µs
001 --> 10µs
010 --> 50µs
011 --> 100µs
100 --> 300µs
101 --> 800µs
110 --> 1000µs
111 --> 2000µs
12
DEF_DITH_EN(0)
DITH_EN
Dithering enable: enable or disable random dither
effect.
If this bit is set Dithering is enabled;
If the bit is reset, the dithering is disabled
11÷10
DEF_BST_FDEV(00)
BST_FDEV
Boost clock frequency deviation
The clock frequency deviation shall be
configurable in 4 steps:
00 --> 5%
01 --> 10%
10 --> 15%
11 --> 20%
9÷8
DEF_BST_FMOD(11)
BST_FMOD
Boost clock frequency modulation
The clock frequency modulation shall be
configurable in 4 steps:
00 --> 1.95 kHz
01 --> 3.90 kHz
10 --> 7.80 kHz
11 --> 15.6 kHz



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