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0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
Digital Undervoltage and
Overvoltage Detection Thresholds
The most recent voltage values are continuously com-
undervoltage (UV) levels (see Tables 21–24) and two
overvoltage (OV) levels (see Tables 25–28).
pared to four programmable limits, comprising two
Table 21. Undervoltage Warning Threshold Register Format (High-Order Bits)
Description:
Undervoltage warning threshold high-order bits [9:2]
Register Title:
Register Addresses:
uv1th_ch0_msb
0xA1
uv1th_ch1_msb
0x1E
R/W
uv1_9
bit 7
R/W
uv1_8
bit 6
R/W
uv1_7
bit 5
R/W
uv1_6
bit 4
R/W
uv1_5
bit 3
R/W
uv1_4
bit 2
R/W
uv1_3
bit 1
R/W
uv1_2
bit 0
RESET
VALUE
0x00
Table 22. Undervoltage Warning Threshold Register Format (Low-Order Bits)
Description:
Undervoltage warning threshold low-order bits [1:0]
Register Titles:
Register Addresses:
uv1th_ch0_Isb
0x1B
uv1th_ch1_lsb
0x1F
R
R
R
R
R
R
R/W
R/W
RESET
VALUE
uv1_1
uv1_0
0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Table 23. Undervoltage Critical Threshold Register Format (High-Order Bits)
Description:
Undervoltage critical threshold high-order bits [9:2]
Register Title:
Register Addresses:
uv2th_ch0_msb
0x1C
uv2th_ch1_msb
0x26
R/W
uv2_9
bit 7
R/W
uv2_8
bit 6
R/W
uv2_7
bit 5
R/W
uv2_6
bit 4
R/W
uv2_5
bit 3
R/W
uv2_4
bit 2
R/W
uv2_3
bit 1
R/W
uv2_2
bit 0
RESET
VALUE
0x00
Table 24. Undervoltage Critical Threshold Register Format (Low-Order Bits)
Description:
Undervoltage critical threshold low-order bits [1:0]
Register Title:
Register Addresses:
uv2th_ch0_lsb
0x1D
uv2th_ch1_lsb
0x27
R
R
R
R
R
R
R/W
R/W
RESET
VALUE
uv2_1
uv2_0
0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
24
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