Rainbow Electronics MAX5961 - Manual (Page 27)

MAX5961
0 to 16V, Quad, Hot-Swap Controller
with 10-Bit Current and Voltage Monitor
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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).
Table 21. Undervoltage Warning Threshold Register Format (High-Order Bits)
Description: Undervoltage warning threshold high-order bits [9:2]
Register Titles: uv1_ch1_h uv1_ch2_h uv1_ch3_h uv1_ch4_h
Register Addresses: 0x32 0x3C 0x46 0x50
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
Table 22. Undervoltage Warning Threshold Register Format (Low-Order Bits)
Description: Undervoltage warning threshold low-order bits [1:0]
Register Titles: uv1_ch1_l uv1_ch2_l uv1_ch3_l uv1_ch4_l
Register Addresses: 0x33 0x3D 0x47 0x51
R/W R/W R/W R/W R/W R/W 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 Titles: uv2_ch1_h uv2_ch2_h uv2_ch3_h uv2_ch4_h
Register Addresses: 0x34 0x3E 0x48 0x52
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
Table 24. Undervoltage Critical Threshold Register Format (Low-Order Bits)
Description: Undervoltage critical threshold low-order bits [1:0]
Register Titles: uv2_ch1_l uv2_ch2_l uv2_ch3_l uv2_ch4_l
Register Addresses: 0x35 0x3F 0x49 0x53
R/W R/W R/W R/W R/W R/W 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