max5961 Maxim Integrated Products, Inc., max5961 Datasheet - Page 16

• Manufacturer Part Number: max5961
• Description: 0 To 16v, Quad, Hot-swap Controller With 10-bit Current And Voltage Monitor
• Manufacturer: Maxim Integrated Products, Inc.

0 to 16V, Quad, Hot-Swap Controller
with 10-Bit Current and Voltage Monitor
Depending on the state of the MODE input, the four-
channel MAX5961 can operate as four independent
16
Table 1b. Register Address Map (General)
Table 2. Grouping Hot-Swap Channels
mon_range
cbuf_chx_store
ifast2slow
status0
status1
sense_range
status3
fault0
fault1
fault2
pgdly
fokey
foset
chxen
dgl_i
dgl_uv
dgl_ov
cbufrd_hibyonly
cbuf_dly_stop
peak_log_rst
peak_log_hold
MODE INPUT
Unconnected
STATUS
REGISTER
______________________________________________________________________________________
High
Low
MODE [1]
Grouping Hot-Swap Channels
1
0
0
Current threshold ratio setting for the fast comparator vs. slow
comparator
OC deglitch enable bits
UV deglitch enable bits
OV deglitch enable bits
Circular buffer stop-delay. Number of samples recorded to the
circular buffer after channel shutdown.
MON_ input range selection
Selective enabling of individual blocks in the circular buffer
Slow-trip and fast-trip comparators status register
PROT, MODE, and ON_ inputs status register
ILIM_ inputs status register
RETRY, POL, ALERT, and PG_ status register
Status register for undervoltage detection (warning or critical)
Status register for overvoltage detection (warning or critical)
Status register for overcurrent detection (warning)
Delay setting between MON_ measurement and PG_ assertion
Load register with 0xA5 to enable force-on function
Register that enables force-on function for a channel
Channel enable bits
Circular buffers readout mode: 8 bit or 10 bit
Reset control bits for peak-detection registers
Hold control bits for peak-detection registers
MODE [0]
0
1
0
Independent
FUNCTION
DESCRIPTION
Grouped
Paired
Each channel operates as an independent hot-swap controller. A fault
shutdown in one channel does not affect operation of other channels.
Channels 1 and 3 operate together as one pair while channels 2 and 4
operate as another pair. A fault shutdown in one channel of a pair shuts
down both channels in the pair.
All channels operate as a group. A fault shutdown in one channel shuts
down all four channels.
hot-swap controllers, two pairs of controllers, or with all
four controllers grouped together (see Tables 2 and 4a).
(HEX CODE)
DESCRIPTION
ADDRESS
0x6C
0x6D
0x5E
0x6A
0x6B
0x30
0x31
0x5F
0x60
0x61
0x62
0x63
0x64
0x65
0x66
0x67
0x68
0x69
0x72
0x73
0x74
VALUE
RESET
Cx00
0x00
0xFF
0xFF
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x19
0x00
0x00
—
—
—
—
2, 4a, 4b, 29
6, 7a, 7b
31a, 31b
TABLE
5a, 5b
17, 18
42
50
30
47
48
49
46
45
38
39
40
43
44
36
37
3