Rainbow Electronics MAX5970 User Manual
Page 24

0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
MAX5970
24 _____________________________________________________________________________________
Table 21. Undervoltage Warning Threshold Register Format (High-Order Bits)
Table 22. Undervoltage Warning Threshold Register Format (Low-Order Bits)
Table 23. Undervoltage Critical Threshold Register Format (High-Order Bits)
Table 24. Undervoltage Critical Threshold Register Format (Low-Order Bits)
Digital Undervoltage and
Overvoltage Detection Thresholds
The most recent voltage values are continuously com-
pared to four programmable limits, comprising two
undervoltage (UV) levels (see Tables 21–24) and two
overvoltage (OV) levels (see Tables 25–28).
Description:
Undervoltage warning threshold high-order bits [9:2]
Register Title:
uv1th_ch0_msb
uv1th_ch1_msb
Register Addresses:
0xA1
0x1E
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RESET
VALUE
uv1_9
uv1_8
uv1_7
uv1_6
uv1_5
uv1_4
uv1_3
uv1_2
0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Description:
Undervoltage warning threshold low-order bits [1:0]
Register Titles:
uv1th_ch0_Isb
uv1th_ch1_lsb
Register Addresses:
0x1B
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
Description:
Undervoltage critical threshold high-order bits [9:2]
Register Title:
uv2th_ch0_msb
uv2th_ch1_msb
Register Addresses:
0x1C
0x26
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RESET
VALUE
uv2_9
uv2_8
uv2_7
uv2_6
uv2_5
uv2_4
uv2_3
uv2_2
0x00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Description:
Undervoltage critical threshold low-order bits [1:0]
Register Title:
uv2th_ch0_lsb
uv2th_ch1_lsb
Register Addresses:
0x1D
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