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MAX16047ETN+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P51P52-P54P55-P57P58-P60P61-P61
MAX16047/MAX16049
The extended memory page contains the ADC conver-
sion result registers (see Table 3). These registers are
also used internally for fault threshold comparison.
Voltage-monitoring thresholds are compared with the 8
MSBs of the conversion results. Inputs that are not
enabled are not converted by the ADC; they contain the
last value acquired before that channel was disabled.
The ADC conversion result registers are reset to 00h at
boot-up. These registers are not reset when a reboot
command is executed.
Table 3. ADC Conversion Registers
EXTENDED PAGE
ADDRESS
BIT RANGE DESCRIPTION
00h [7:0] MON1 ADC Conversion Result (MSB)
[7:6] MON1 ADC Conversion Result (LSB)
01h
[5:0] Reserved
02h [7:0] MON2 ADC Conversion Result (MSB)
[7:6] MON2 ADC Conversion Result (LSB)
03h
[5:0] Reserved
04h [7:0] MON3 ADC Conversion Result (MSB)
[7:6] MON3 ADC Conversion Result (LSB)
05h
[5:0] Reserved
06h [7:0] MON4 ADC Conversion Result (MSB)
[7:6] MON4 ADC Conversion Result (LSB)
07h
[5:0] Reserved
08h [7:0] MON5 ADC Conversion Result (MSB)
[7:6] MON5 ADC Conversion Result (LSB)
09h
[5:0] Reserved
0Ah [7:0] MON6 ADC Conversion Result (MSB)
[7:6] MON6 ADC Conversion Result (LSB)
0Bh
[5:0] Reserved
0Ch [7:0] MON7 ADC Conversion Result (MSB)
[7:6] MON7 ADC Conversion Result (LSB)
0Dh
[5:0] Reserved
0Eh [7:0] MON8 ADC Conversion Result (MSB)
[7:6] MON8 ADC Conversion Result (LSB)
0Fh
[5:0] Reserved
10h [7:0] MON9 ADC Conversion Result (MSB)*
[7:6] MON9 ADC Conversion Result (LSB)*
11h
[5:0] Reserved
12h [7:0] MON10 ADC Conversion Result (MSB)*
[7:6] MON10 ADC Conversion Result (LSB)*
13h
[5:0] Reserved
14h [7:0] MON11 ADC Conversion Result (MSB)*
[7:6] MON11 ADC Conversion Result (LSB)*
15h
[5:0] Reserved
16h [7:0] MON12 ADC Conversion Result (MSB)*
[7:6] MON12 ADC Conversion Result (LSB)*
17h
[5:0] Reserved
*
MAX16047 only
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
______________________________________________________________________________________ 19
MAX16047/MAX16049
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
20 ______________________________________________________________________________________
General-Purpose Inputs/Outputs
GPIO1–GPIO6 are programmable general-purpose
inputs/outputs. GPIO1–GPIO6 are configurable as a
manual reset input, a margin disable input, a watchdog
timer input and output, logic inputs/outputs, fault-
dependent outputs, or as the feedback inputs (INS_)
for closed-loop tracking. When programmed as out-
puts, GPIOs are open drain or push-pull. See registers
r1Ch to r1Eh in Tables 4 and 5 for more detailed infor-
mation on configuring GPIO1–GPIO6.
Table 4. General-Purpose IO Configuration Registers
REGISTER/
EEPROM ADDRESS
BIT RANGE DESCRIPTION
[2:0] GPIO1 Configuration Register
[5:3] GPIO2 Configuration Register1Ch
[7:6] GPIO3 Configuration Register (LSB)
[0] GPIO3 Configuration Register (MSB)
[3:1] GPIO4 Configuration Register
[6:4] GPIO5 Configuration Register
1Dh
[7] GPIO6 Configuration Register (LSB)
[1:0] GPIO6 Configuration Register (MSB)
1Eh
[7:2] Reserved
Table 5. GPIO Mode Selection
CONFIGURATION
BITS
GPIO1 GPIO2 GPIO3 GPIO4 GPIO5 GPIO6
000 INS1 INS2 INS3 INS4 — MARGIN input
001
Push-pull logic
input/output
Push-pull logic
input/output
Push-pull logic
input/output
Push-pull logic
input/output
Push-pull logic
input/output
Push-pull logic
input/output
010
Open-drain
logic
input/output
Open-drain
logic
input/output
Open-drain
logic input/
output
Open-drain
logic
input/output
Open-drain
logic input/
output
Open-drain
logic input/
output
011
Push-pull
Any_Fault output
Push-pull
Any_Fault output
Push-pull
Any_Fault output
Push-pull
Any_Fault output
Push-pull
FAULT1 output
Push-pull
FAULT2 output
100
Open-drain
Any_Fault output
Open-drain
Any_Fault output
Open-drain
Any_Fault output
Open-drain
Any_Fault output
Open-drain
FAULT1 output
Open-drain
FAULT2 output
101 Logic input Logic input Logic input Logic input Logic input Logic input
110 —————
Open-drain
WDO output
111 — — — MR input WDI input
Open-drain
FAULTPU output
Note: The dash “—” represents a reserved GPIO configuration. Do not set any GPIO to these values.
MAX16047/MAX16049
Voltage Tracking Sense (INS_) Inputs
GPIO1–GPIO4 are configurable as feedback sense
return inputs (INS_) for closed-loop tracking. Connect the
gate of an external n-channel MOSFET to each EN_OUT_
configured for closed-loop tracking. Connect INS_ inputs
to the source of the MOSFETs for tracking feedback.
Internal comparators monitor INS_ with respect to a
control tracking ramp voltage for power-up/power-
down and control each EN_OUT_ voltage. Under nor-
mal conditions each INS_ voltage tracks the ramp
voltage until the power-good voltage threshold has
been reached. The slew rate for the ramp voltage and
the INS_ to MON_ power-good threshold are program-
mable. See the
Closed-Loop Tracking
section.
INS_ connections also act as 100Ω pulldowns for
closed-loop tracking channels or for other power sup-
plies, if INS_ are connected to the outputs of the sup-
plies. Set the appropriate bits in r4Eh[7:4] to enable
pulldown functionality. See Table 12.
General-Purpose Logic Inputs/Outputs
Configure GPIO1–GPIO6 to be used as general-pur-
pose inputs/outputs. Write values to GPIOs through
r1Ah when operating as outputs, and read values from
r1Bh when operating as inputs. Register r1Bh is read-
only. See Table 6 for more information on reading and
writing to the GPIOs as logic inputs/outputs. Both regis-
ters r1Ah and r1Bh are located in the extended page
and are therefore not loaded from EEPROM on boot-up.
Table 6. GPIO Data-In/Data-Out Data
EXTENDED PAGE
ADDRESS
BIT RANGE DESCRIPTION
[0]
GPIO Logic Output Data
0 = GPIO1 is a logic-low output
1 = GPIO1 is a logic-high output
[1]
0 = GPIO2 is a logic-low output
1 = GPIO2 is a logic-high output
[2]
0 = GPIO3 is a logic-low output
1 = GPIO3 is a logic-high output
[3]
0 = GPIO4 is a logic-low output
1 = GPIO4 is a logic-high output
[4]
0 = GPIO5 is a logic-low output
1 = GPIO5 is a logic-high output
[5]
0 = GPIO6 is a logic-low output
1 = GPIO6 is a logic-high output
1Ah
[7:6] Not used
[0]
GPIO Logic Input Data
GPIO1 logic-input state
[1] GPIO2 logic-input state
[2] GPIO3 logic-input state
[3] GPIO4 logic-input state
[4] GPIO5 logic-input state
[5] GPIO6 logic-input state
1Bh
[7:6] Not used
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
______________________________________________________________________________________ 21
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P51P52-P54P55-P57P58-P60P61-P61

MAX16047ETN+T

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Buy MAX16047ETN+T
Manufacturer:
Maxim Integrated
Description:
Supervisory Circuits 12Ch EEPROM Prob System Manage
Lifecycle:
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