Rainbow Electronics MAX5970 - Manual (Page 24)

0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
MAX5970
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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