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0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
Digital Voltage Monitoring and
Power-Good Outputs
The voltage at the load (MON_ inputs) is sampled by
channel can be set to 16V, 8V, 4V, or 2V by writing to
register mon_range. The default range is 16V (Tables
17 and 18).
the internal ADC. The MON_ full-scale voltage for each
Table 17. ADC Voltage Monitor Settings Register Format
Description:
Register Title:
Register Addresses:
ADC voltage monitor full-scale range settings (for MON_ inputs)
mon_range
0x18
R/W
—
bit 7
R/W
—
bit 6
R/W
—
bit 5
R/W
—
bit 4
R/W
MON2_rng1
bit 3
R/W
MON2_rng0
bit 2
R/W
MON1_rng1
bit 1
R/W
MON1_rng0
bit 0
RESET
VALUE
0x00
Table 18. ADC Full-Scale Voltage Setting
MONx_rng1
0
0
1
1
MONx_rng0
0
1
0
1
ADC FULL-SCALE VOLTAGE (V)
16
8
4
2
The most recent voltage conversion results can be read
from the adc_chx_mon_msb and adc_chx_mon_lsb reg-
isters (see Tables 19 and 20).
Table 19. ADC Voltage Conversion Result Register Format (High-Order Bits)
Description:
Most recent voltage conversion result, high-order bits [9:2]
Register Title:
Register Addresses:
adc_ch0_mon_msb
0x02
adc_ch1_mon_msb
0x06
R
vnew_9
bit 7
R
vnew_8
bit 6
R
vnew_7
bit 5
R
vnew_6
bit 4
R
vnew_5
bit 3
R
vnew_4
bit 2
R
vnew_3
bit 1
R
vnew_2
bit 0
RESET
VALUE
0x00
Table 20. ADC Voltage Conversion Result Register Format (Low-Order Bits)
Description:
Most recent voltage conversion result, low-order bits [1:0]
Register Title:
Register Addresses:
adc_ch0_mon_lsb
0x03
adc_ch1_mon_lsb
0x07
R
R
R
R
R
R
R
R
RESET
VALUE
vnew_1
vnew_0
0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
______________________________________________________________________________________
23
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