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L6718 Scheda tecnica(PDF) 2 Page - STMicroelectronics

Il numero della parte L6718
Spiegazioni elettronici  SMBus interface for power management
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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Contents
L6718
2/71
DocID023399 Rev 3
Contents
1
Typical application circuit and block diagram . . . . . . . . . . . . . . . . . . . . 7
1.1
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2
Pin description and connection diagrams . . . . . . . . . . . . . . . . . . . . . . 11
2.1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4
VID tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5
Device description and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6
Device configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.1
CPU mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.2
DDR mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.3
SWAP mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.1
MRO - multi-phase rail only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.4
Jmode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.5
Phase number configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.6
Pinstrapping configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.6.1
CONFIG0 in CPU mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.6.2
CONFIG0 in DDR mode (STCOMP=GND) . . . . . . . . . . . . . . . . . . . . . . 34
6.6.3
CONFIG1 in CPU mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.6.4
CONFIG1 in DDR mode (STCOMP=GND) . . . . . . . . . . . . . . . . . . . . . . 37
6.6.5
CONFIG2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.6.6
CONFIG3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7
L6718 power manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7.1
SMBus power manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42


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