L6718 Datasheet, PDF (36/71 Pages) STMicroelectronics – SMBus interface for power management

Device configuration
L6718
6.6.3
CONFIG1 in CPU mode
Config1/PSI1 is a multi-functional pin, during startup it is used as pinstrapping.
Setting the device in CPU mode it is possible to select:
a) TMAX. Maximum temperature can be set from 90 °C, 100 °C, 110 °C and 120 °C.
b) IMAX. Maximum current for the multi-phase rail can be selected by pinstrapping
as required by Intel specifications. The maximum current can be selected by 4
values which can change depending on the number of the phases selected (see
Section 6.5).
c) Jmode. It is possible to set Jmode (see Section 6.4). In MRO mode the single-
phase rail remains off and Jmode bitstrapping is used to change the number of
switching phases (see Table 7).
Table 10. CONFIG1/PSI1 pinstrapping in CPU MODE
Pinstrapping ⁽¹⁾
divider (KOhm)
TMAX
IMAX
R up
R down
2-phase
3-phase
4-phase
750
10
90 °C
55 A
390
16
90 °C
55 A
390
27
90 °C
60 A
65 A
65 A
75 A
100 A
100 A
112 A
150
15
90 °C
91
12
90 °C
91
15
90 °C
100
20
90 °C
60 A
65 A
65 A
75 A
75 A
95 A
95 A
112 A
112 A
120 A
120 A
130 A
75
18
90 °C
75 A
39
11
100 °C
55 A
120
39
100 °C
55 A
43
16
100 °C
60 A
120
51
100 °C
60 A
112 A
65 A
65 A
75 A
75 A
130 A
100 A
100 A
112 A
112 A
82
39
100 °C
65 A
95 A
120 A
56
30
100 °C
65 A
95 A
120 A
20
12
100 °C
75 A
112 A
130 A
36
24
100 °C
75 A
112 A
130 A
27
20
110 °C
55 A
68
56
110 °C
55 A
47
43
110 °C
60 A
14,7
15
110 °C
60 A
24
27
110 °C
65 A
65 A
65 A
75 A
75 A
95 A
100 A
100 A
112 A
112 A
120 A
24
30
110 °C
65 A
95 A
120 A
13
18
110 °C
75 A
112 A
130 A
Jmode
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
36/71
DocID023399 Rev 3