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ISL6422EVEZ-T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
13
FN9190.2
August 10, 2007
Transmitted Data (I
2
C bus WRITE mode)
When the R/W bit in the chip is set to 0, the main
microprocessor can write on the system registers (SR1
through SR8) of the ISL6422 via I
2
C bus. These will be
written by the microprocessor as shown in the following. The
spare bits of registers can be used for other functions.
TABLE 6. CONTROL REGISTER 4 (SR4)
R, W R, W R, W R, W R, W R, W R, W R, W
SR4H SR4M SR4L EN1 X X VTOP1 VBOT1
TABLE 7. STATUS REGISTER 5 (SR5)
R, WR, WR, WXRRRR
SR5H SR5M SR5L X CABF2 OUVF2 OLF2 BCF2
TABLE 8. TONE REGISTER 6 (SR6)
R, W R, W R, W R, W R, W R, W R, W R, W
SR6H SR6M SR6L ENT2 MSEL2 TTH2 X X
TABLE 9. COMMAND REGISTER 7 (SR7)
R, W R, W R, W R, W R, W R, W R, W R, W
SR7H SR7M SR7L DCL2 VSPEN2 ISEL2R ISEL2H ISEL2L
TABLE 10. CONTROL REGISTER 8 (SR8)
R, W R, W R, W R, W R, W R, W R, W R, W
SR8H SR8M SR8L EN2 X X VTOP2 VBOT2
TABLE 11. STATUS REGISTER SR1 CONFIGURATION
SR1H SR1M SR1L OTF CABF1 OUVF1 OLF1 BCF1 FUNCTION
000XXXXXSR1 is selected
000XXX0XI
OUT
≤set limit, Normal Operation
000XXX1XI
OUT
>Static/Dynamic Limiting Mode/Power blocks disabled
000XXXX0I
OBCK
≤set limit, Normal Operation
000XXXX1I
OBCK
>Dynamic Limiting Mode/Power blocks disabled
000XX0XXV
IN
/V
OUT
within specified range
000XX1XXV
IN
/V
OUT
is not within specified range
0 0 0 X 0 X X X Cable is connected, I
OUT
is >20mA
0 0 0 X 1 X X X Cable is open, I
OUT
<2mA
0000XXXXT
J
≤+130°C, Normal operation
0001XXXXT
J
>+150°C, Power blocks disabled
NOTE: X indicates “Read Only” and is a “Don’t Care” for the Write mode.
TABLE 12. TONE REGISTER SR2 CONFIGURATION
SR2H SR2M SR2L ENT1 MSEL1 TTH1 X X FUNCTION
001XXXXXSR2 is selected
00100XXXInternal Tone = 22kHz, modulated by EXTM1, t
r
, t
f
= 10µs typ
00101XXXExt 22k modulated input, t
r
, t
f
= 10µs typ
00110XXXInternal Tone = 22kHz, modulated by the ENT1 bit, t
r
, t
f
= 10µs typ
0 0 1 X X 0 X X TXT = 0; Decoder Rx threshold is set at 200mV max
0 0 1 X X 1 X X TXT = 0; Decoder Tx threshold is set at 400mV min
NOTE: X is a “Don’t Care” for the Write mode.
ISL6422
14
FN9190.2
August 10, 2007
TABLE 13. COMMAND REGISTER SR3 CONFIGURATION
SR3H SR3M SR3L DCL1 VSPEN1 ISEL1R ISEL1H ISEL1L FUNCTION
0 1 0 X X X X X SR3 is selected
0100X0XXI
OUT1
= 275mA maximum
0100X100I
OUT1
= 350mA maximum
0100X101I
OUT1
= 515mA maximum
0100X110I
OUT1
= 635mA maximum
0100X111I
OUT1
= 800mA maximum
0 1 0 1 X X X X Dynamic current limit NOT selected
0 1 0 0 X X X Dynamic current limit selected
0 1 0 X 0 X X X SELVTOP H/W pin Enabled
0 1 0 X 1 X X X SELVTOP H/W pin Disabled
NOTE: X is a “Don’t Care” for the Write mode.
TABLE 14. CONTROL REGISTER SR4 CONFIGURATION
SR4H SR4M SR4L EN1 X X VTOP1 VBOT1 FUNCTION
0111XX00SR4 is selected
0 1 1 1 X X 0 0 VSPEN1 = SELVTOP1 = 0, V
OUT1
= 13V,
V
BOOST1
= 13V + V
DROP
0 1 1 1 X X 0 1 VSPEN1 = SELVTOP1 = 0, V
OUT1
= 14V,
V
BOOST1
= 14V + V
DROP
0 1 1 1 X X 1 0 VSPEN1 = SELVTOP1 = 0, V
OUT1
= 13V,
V
BOOST1
= 13V + V
DROP
0 1 1 1 X X 1 1 VSPEN1 = SELVTOP1 = 0, V
OUT1
= 14V,
V
BOOST1
= 14V + V
DROP
0 1 1 1 X X 0 0 VSPEN1 = 0, SELVTOP1 = 1, V
OUT1
= 18V,
V
BOOST1
= 18V + V
DROP
0 1 1 1 X X 0 1 VSPEN1 = 0, SELVTOP1 = 1, V
OUT1
= 18V,
V
BOOST1
= 18V + V
DROP
0 1 1 1 X X 1 0 VSPEN1 = 0, SELVTOP1 = 1, V
OUT1
= 19V,
V
BOOST1
= 19V + V
DROP
0 1 1 1 X X 1 1 VSPEN1 = 0, SELVTOP1 = 1, V
OUT1
= 19V,
V
BOOST1
= 19V + V
DROP
0 1 1 1 X X 0 0 VSPEN1 = 1, SELVTOP1 = X, V
OUT1
= 13V,
V
BOOST1
= 13V + V
DROP
0 1 1 1 X X 0 1 VSPEN1 = 1, SELVTOP1 = X, V
OUT1
= 14V,
V
BOOST1
= 14V + V
DROP
0 1 1 1 X X 1 0 VSPEN1 = 1, SELVTOP1 = X, V
OUT1
= 18V,
V
BOOST1
= 18V + V
DROP
0 1 1 1 X X 1 1 VSPEN1 = 1, SELVTOP1 = X, V
OUT1
= 19V,
V
BOOST1
= 19V + V
DROP
0110XXXXPWM and Linear for Channel 1 disabled
NOTE: X is a “Don’t Care” for the Write mode.
ISL6422
15
FN9190.2
August 10, 2007
TABLE 15. STATUS REGISTER SR5 CONFIGURATION
SR5H SR5M SR5L CABF2 OUVF2 OLF2 BCF2 FUNCTION
1 0 0 X X X X X SR5 is selected
100XXX0XI
OUT
≤ set limit, Normal Operation
100XXX1XI
OUT
> Static/Dynamic Limiting Mode/Power blocks disabled
100XXXX0I
OBCK
≤ set limit, Normal Operation
100XXXX1I
OBCK
> Dynamic Limiting Mode/Power blocks disabled
100XX0XXV
IN
/V
OUT
within specified range
100XX1XXV
IN
/V
OUT
is not within specified range
1 0 0 X 0 X X X Cable is connected, I
OUT
is >20mA
1 0 0 X 1 X X X Cable is open, I
OUT
<2mA
NOTE: X indicates “Read Only” state.
TABLE 16. TONE REGISTER SR6 CONFIGURATION
SR6H SR6M SR6L ENT2 MSEL2 TTH2 X X FUNCTION
1 0 1 X X X X X SR2 is selected
1 0 1 0 0 X X X Int Tone = 22kHz, modulated by EXTM2, T
r
, T
f
= 10µs typ
1 0 1 0 1 X X X Ext 22k modulated input, T
r
, T
f
= 10µs typ
1 0 1 1 0 X X X Int Tone = 22kHz, modulated by ENT2 bit, T
r
, T
f
= 10µs typ
1 0 1 X X 0 X X TXT2 = 0; Decoder Rx threshold is set at 200mV max
1 0 1 X X 1 X X TXT2 = 0; Decoder Tx threshold is set at 400mV min
NOTE: X is a “Don’t Care” for the Write mode.
TABLE 17. COMMAND REGISTER SR7 CONFIGURATION
SR7H SR7M SR7L DCL2 VSPEN2 ISEL2R ISEL2H ISEL2L FUNCTION
1 1 0 X X X X X SR7 is selected
1100 X 0XXI
OUT
1 = 275mA max.
1100 X 100I
OUT
1 = 350mA max.
1100 X 101I
OUT
1 = 515mA max.
1100 X 110I
OUT
1 = 635mA max.
1100 X 111I
OUT
1 = 800mA max.
1 1 0 1 X X X X Dynamic current limit NOT selected
1 1 0 0 X X X X Dynamic current limit selected
1 1 0 X 0 X X X SELVTOP H/W pin Enabled
1 1 0 X 1 X X X SELVTOP H/W pin Disabled
NOTE: X is a “Don’t Care” for the Write mode.
ISL6422
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

ISL6422EVEZ-T

Mfr. #:
Buy ISL6422EVEZ-T
Manufacturer:
Renesas / Intersil
Description:
Switching Controllers DL LNB SUPPLY + CONT VAGEG W/I2C
Lifecycle:
New from this manufacturer.
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