max5978 Maxim Integrated Products, Inc., max5978 Datasheet - Page 18

• Manufacturer Part Number: max5978
• Description: 0 To 16v, Hot-swap Controller With 10-bit Current, Voltage Monitor, And 4 Led Drivers
• Manufacturer: Maxim Integrated Products, Inc.

0 to 16V, Hot-Swap Controller with 10-Bit
Current, Voltage Monitor, and 4 LED Drivers
Table 5. Specified Current-Sense and Circuit-Breaker Threshold Ranges
Table 6a. IRNG Input Status Register Format
Table 6b. Setting Current-Sense Range
Table 7. dac_ch_ Register Format
18
Description:
Resister Title:
Register Address:
Description:
Register Title:
Register Addresses:
Unconnected
DAC[7]
Bit 7
R/W
Bit 7
IRNG PIN STATE
—
INPUT
R
IRNG
High
Low
Open
High
Low
DAC[6]
Bit 6
Bit 6
R/W
—
R
DAC OUTPUT RANGE
(DEFAULT = FULL
SCALE) (mV)
40 to 100
10 to 25
20 to 50
Fast-trip threshold maximum range-setting bits, from IRNG three-state input
status2
0x33
Fast-comparator threshold DAC setting
dac_fast
0x2E
Bit 5
DAC[5]
—
R
R/W
Bit 5
IRNG1
1
0
0
Bit 4
—
R
DAC[4]
THRESHOLD RANGE
R/W
Bit 4
FAST-TRIP
40 to 100
10 to 25
20 to 50
(mV)
Unused
IRNG0
R/W
Bit 3
0
1
0
DAC[3]
Bit 3
R/W
Unused
Bit 2
R/W
GAIN (2 BIT) (V
DAC[2]
R/W
Bit 2
(DEFAULT = 11)
MAXIMUM CURRENT-SENSE SIGNAL (mV)
ifast2slow
00 (125%)
01 (150%)
10 (175%)
11 (200%)
00 (125%)
01 (150%)
10 (175%)
11 (200%)
00 (125%)
01 (150%)
10 (175%)
11 (200%)
V
SLOW
IRNG1
DAC[1]
Bit 1
R/W
)
R/W
Bit 1
FAST
/
100
25
50
DAC[0]
THRESHOLD RANGE
IRNG0
R/W
Bit 0
Bit 0
R/W
16.00 to 40.00
13.33 to 33.33
11.48 to 28.57
10.00 to 25.00
32.00 to 80.00
26.67 to 66.67
22.86 to 57.14
20.00 to 50.00
8.00 to 20.00
6.67 to 16.67
5.71 to 14.29
5.00 to 12.50
SLOW-TRIP
(mV)
RESET
VALUE
RESET
VALUE
0xBF
—
—
—