ISL6398 Datasheet, PDF (42/57 Pages) Intersil Corporation – Programmable soft-start rate and DVID rate

ISL6398
COMMAND
CODE
E3[13:0]
ACCESS
R/W
E4[9:0]
R/W
E4[9:0]
R/W
TABLE 14. SMBus, PMBus, AND I²C WRITE AND READ REGISTERS
WRITE
PROTECT
LEVEL
DEFAULT
COMMAND NAME
DESCRIPTION
10h NVM_BANK ADVANCED_MOD_CONFIG Use these registers to Optimize High Frequency Transient
Response at Different Phase Count with Original Speed up
(F3[2:0] = 0h = Original)
Bit[0]: 1 PHASE dBAND;
0h = normal dBand; 1h = reduced dBand (faster);
Bit[2:1]: 1 PHASE SPEEDUP
0h = 3h = 1/2 decay; 1h = normal decay; 2h = 1/4 decay (faster);
Bit[3]: 2 PHASE dBAND;
0h = normal dBand; 1h = reduced dBand (faster);
Bit[5:4]: 2 PHASE SPEEDUP
0h = 3h = 1/2 decay; 1h = normal decay; 2h = 1/4 decay (faster);
Bit[6]: 3+ PHASE dBAND;
0h = normal dBand; 1h = reduced dBand (faster);
Bit[8:7]: 3+ PHASE SPEEDUP
0h =3h = 1/2 decay; 1h = normal decay; 2h = 1/4 decay (faster);
Bit[10:9]: Peak-Detect CAP
0h = 1pF, 1h = 2pF, 2h = 3pF; 3h = 4pF (smaller cap is less
sensitive)
Bit[12:11]: High-pass CAP
0h = 1pF, 1h = 2pF, 2h = 3pF; 3h = 4pF (bigger cap, more
sensitive)
Bit[13]: High-Frequency Balance Gain
0h = 1x; 1h= 2x gain
20h NVM_BANK
IMON_IDROOP_TRIM
Bit[4:0] - No Load IMON Trim (-4.0 µA to 3.75µA), add current
through R₁ at droop enabled and out of IMON pin together
0h = 0µA......................................10h = -0.25µA
20h NVM_BANK
IMON_IDROOP_TRIM
1h = 0.25µA................................11h = -0.50µA
2h = 0.50µA................................12h = -0.75µA
3h = 0.75µA................................13h = -1.00µA
4h = 1.00µA................................14h = -1.25µA
5h = 1.25µA................................15h = -1.50µA
6h = 1.50µA................................16h = -1.75µA
7h = 1.75µA................................17h = -2.00µA
8h = 2.00µA................................18h = -2.25µA
9h = 2.25µA................................19h = -2.50µA
Ah = 2.50µA................................1Ah = -2.75µA
Bh = 2.75µA................................1Bh = -3.00µA
Ch = 3.00µA................................1Ch = -3.25µA
Dh = 3.25µA................................1Dh = -3.50µA
Eh = 3.50µA.................................1Eh = -3.75µA
Fh = 3.75µA.................................1Fh = -4.00µA
Bit[9:5] - No Load IDROOP Trim (-4.0 µA to 3.75µA), add current
through R₁ regardless droop enabled or disabled; use it to fine
tune DC offset
0h = 0µA .....................................10h = -0.25µA
1h = 0.25µA................................11h = -0.50µA
2h = 0.50µA................................12h = -0.75µA
3h = 0.75µA................................13h = -1.00µA
4h = 1.00µA................................14h = -1.25µA
5h = 1.25µA................................15h = -1.50µA
6h = 1.50µA................................16h = -1.75µA
7h = 1.75µA................................17h = -2.00µA
8h = 2.00µA................................18h = -2.25µA
9h = 2.25µA................................19h = -2.50µA
Ah = 2.50µA................................1Ah = -2.75µA
Bh = 2.75µA................................1Bh = -3.00µA
Ch = 3.00µA................................1Ch = -3.25µA
Dh = 3.25µA................................1Dh = -3.50µA
Eh = 3.50µA.................................1Eh = -3.75µA
Fh = 3.75µA.................................1Fh = -4.00µA
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August 13, 2015