ISL6422
ADDR0 and ADDR1 Pins
Connecting either ADDR0 or ADDR1 to GND, the chip I2C
interface address is 0001000, but it is possible to choose
between four different addresses simply by setting the logic as
indicated in Table 19.
TABLE 19. ADDRESS PIN CHARACTERISTICS
VADDR
VADDR-1
“0001000”
ADDR1
0
ADDR0
0
VADDR-2
0
1
“0001001”
VADDR-3
1
0
“0001010”
VADDR-4
“0001011”
1
1
I2C Electrical Characteristics
PARAMETER
Input Logic High, VIH
Input Logic Low, VIL
Input Logic Current, IIL
Input Hysterisis
SCL Clock Frequency
TABLE 20. I2C SPECIFICATIONS
TEST CONDITION
MIN
SDA, SCL
2.0V
SDA, SCL
SDA, SCL;
0.4V < VDD < 3.3V
SDA, SCL
165mV
0
TYP
200mV
100kHz
MAX
0.8V
10A
235mV
400kHz
I2C Bit Description
TABLE 21.
BIT NAME
DESCRIPTION
EN1 and EN2
ENable Output for Channels 1 and 2
VTOP1 and VTOP2
Voltage TOP Select (that is, 18V/19V for Channels 1 and 2)
VBOT1 and VTOP2
Voltage BOTtom Select (that is, 13V/14V for Channels 1 and 2)
ENT1 and ENT2
ENable Tone for Channels 1 and 2
MSEL1 and MSEL2
Modulation SELect for Channels 1 and 2
TFR1 and TFR2
Tone Frequency and Rise time select for Channels 1 and 2
DCL1 and DCL2
Dynamic Current Limit select for Channels 1 and 2
VSPEN1 and VSPEN2
Voltage Select Pin ENable for Channels 1 and 2
ISEL1H and ISEL2H, ISEL1L and Current limit “I” SELect high and low bits for Channels 1 and 2
ISEL2L, ISEL1R and ISEL2R
OTF
Over-Temperature Fault bit
CABF1, CABF2
CABle Fault or open status bit for Channels 1 and 2
OUVF1, OUVF2
Over and Undervoltage Fault status bit for Channels 1 and 2
OLF1, OLF2
Over Load Fault status bit for Channels 1 and 2
BCF1, BCF2
Backward Current Fault Bit for Channels 1 and 2
TTH1, TTH2
Tone THreshold is the OR of the signal pin TXT1 or TXT2
FN9190 Rev 2.00
Aug 10, 2007
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