MAX34460 Datasheet, PDF (14/65 Pages) Maxim Integrated Products – PMBus 12-Channel Voltage Monitor and Sequencer

MAX34460
PMBus 12-Channel Voltage Monitor and Sequencer
Pin Description (continued)
PIN*
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
NAME
CONTROL
RST
ALARMCLR
SDA
SCL
V_DD
REG18
FAULT2
MSCL
MSDA
PSEN8
PSEN9
PSEN10
PSEN11
ALARM0
ALARM1
ALERT
A1/PG
PG2
CONTROL2
RSG0
RSG1
PSEN0
PSEN1
PSEN2
PSEN3
PSEN4
PSEN5
TYPE**
AI
DIO
DI
DIO
DIO
Power
Power
DIO
DIO
DIO
DO
DO
DO
DO
DO
DO
DO
DIO
DO
DI
AI
AI
DO
DO
DO
DO
DO
DO
FUNCTION
Power-Supply Master On/Off Control for the Primary Sequence. Active low or active high
based on the ON_OFF_CONFIG command.
Active-Low Reset Input/Output. Contains an internal pullup.
Active-Low Alarm Clear Input with a Weak Pullup. Toggle low to clear the ALARM0/ALARM1
outputs. Leave open circuit or connect high if not used.
I²C/SMBus-Compatible Input/Open-Drain Output
I²C/SMBus-Compatible Clock Input/Open-Drain Output
Digital Supply Voltage. Bypass V_DD to V_SS with 0.1FF. Connect to V_DDA.
Regulator for Digital Circuitry. Bypass to V_SS with 1FF and 10nF (500mI maximum ESR). Do
not connect other circuitry to this pin.
Active-Low Fault Input/Output for the Secondary Sequence. See the Expanded Pin
Description section for more details.
Master I²C Clock Input/Open-Drain Output
Master I²C Data Input/Open-Drain Output
Power-Supply Enable Output 8. See the Expanded Pin Description section for more details.
Power-Supply Enable Output 9. See the Expanded Pin Description section for more details.
Power-Supply Enable Output 10. See the Expanded Pin Description section for more details.
Power-Supply Enable Output 11. See the Expanded Pin Description section for more details.
Active-Low Alarm Output 0. See the Expanded Pin Description section for more details.
Active-Low Alarm Output 1. See the Expanded Pin Description section for more details.
Active-Low, Open-Drain Alert Output
SMBus Address 1 Input/Power-Good Output for the Primary Sequence. This dual-function
pin is sampled on device power-up to determine the SMBus address. After device power-
up, this pin becomes an output that transitions high when all the enabled power supplies are
above their associated POWER_GOOD_ON thresholds. This pin is forced low immediately
when the CONTROL pin goes inactive or the OPERATION off command is received. This pin
contains a weak pullup during device reset.
Power Good for the Secondary Sequence
Power-Supply Master On/Off Control for the Secondary Sequence. Active low or active high
based on the ON_OFF_CONFIG command.
Remote-Sense Ground for RS0–RS3.
Remote-Sense Ground for RS4–RS11.
Power-Supply Enable Output 0. See the Expanded Pin Description section for more details.
Power-Supply Enable Output 1. See the Expanded Pin Description section for more details.
Power-Supply Enable Output 2. See the Expanded Pin Description section for more details.
Power-Supply Enable Output 3. See the Expanded Pin Description section for more details.
Power-Supply Enable Output 4. See the Expanded Pin Description section for more details.
Power-Supply Enable Output 5. See the Expanded Pin Description section for more details.
Maxim Integrated
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