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EFP01 bảng dữ liệu(PDF) 130 Page - Silicon Laboratories

tên linh kiện EFP01
Giải thích chi tiết về linh kiện  EFP01 Energy Friendly PMIC Family
PDF  158 Pages
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nhà sản xuất  SILABS [Silicon Laboratories]
Trang chủ  http://www.silabs.com
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EFP01 bảng dữ liệu(HTML) 130 Page - Silicon Laboratories

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6.2.38 BB_IPK
Offset
Bit Position
0x4F
7
6
5
4
3
2
1
0
Reset
0x00
0x00
Access
Name
Table 6.38. BB_IPK
Bit
Name
Reset
Access
Description
7:5
BB_IPK_EM2
0x00
read-write
Peak Current setting for DCDC A in EM2.
Note that unlike DCDC B, there is only a single Coulomb
counter for DCDC A that is used in both EM0 and EM2
modes. Therefore, if Coulomb counting is used with DCDC
A, BB_IPK_EM2 must be set such that the peak current in
EM2 is the same as the peak current in EM0 to ensure the
charge per pulse is the same in both energy modes.
Roughly equivalent peak currents in EM2 and EM0 can be
achieved by setting BB_IPK_EM2 = ( BB_IPK - 2 ) / 4.
The BB_IPK_EM2 setting is used differently depending on
the operating mode of the DCDC A converter, but the re-
sulting peak currents for all modes are derived from the
following base peak current equation:
IPK_BASE = 0.090A + ( 0.009A * ( (4 * BB_IPK_EM2 ) +
2) )
Although the IPK_BASE equation differs between EM2
and EM0, the equations that govern the resulting peak cur-
rent for each operating mode are the same as documen-
ted in the BB_IPK description.
EFP01 Energy Friendly PMIC Family Data Sheet
Register Definitions
silabs.com | Building a more connected world.
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