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PDF MAX16047 Data sheet ( Hoja de datos )
| Número de pieza | MAX16047 | |
| Descripción | (MAX16047 / MAX16049) 12-Channel/8-Channel EEPROM-Programmable System Managers | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX16047 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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19-1869; Rev 0; 11/07
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
General Description
The MAX16047/MAX16049 EEPROM-configurable system
managers monitor, sequence, and track multiple system
voltages. The MAX16047 manages up to twelve system
voltages simultaneously, and the MAX16049 manages up
to eight supply voltages. These devices integrate an ana-
log-to-digital converter (ADC) for monitoring supply volt-
ages, and configurable outputs for sequencing and
www.DataSheett4raUc.ckoimng supplies (during power-up and power-down).
Nonvolatile EEPROM registers are configurable for storing
upper and lower voltage limits, setting timing and
sequencing requirements, and for storing critical fault
data for read back following failures.
An internal 1% accurate 10-bit ADC measures each input
and compares the result to one upper, one lower, and
one selectable upper or lower limit. A fault signal asserts
when a monitored voltage falls outside the set limits. Up
to three independent fault output signals are configurable
to assert under various fault conditions.
The integrated sequencer/tracker allows precise control
over the power-up and power-down order of up to twelve
(MAX16047) or up to eight (MAX16049) power supplies.
Four channels (EN_OUT1–EN_OUT4) support closed-
loop tracking using external series MOSFETs. Six outputs
(EN_OUT1–EN_OUT6) are configurable with charge-
pump outputs to directly drive MOSFETs without closed-
loop tracking.
The MAX16047/MAX16049 include six programmable
general-purpose inputs/outputs (GPIOs). In addition to
serving as EEPROM-configurable I/O pins, the GPIOs
are also configurable as dedicated fault outputs, as a
watchdog input or output (WDI/WDO), or as a manual
reset (MR).
The MAX16047/MAX16049 feature two methods of fault
management for recording information during critical
fault events. The fault logger records a failure in the
internal EEPROM and sets a lock bit protecting the
stored fault data from accidental erasure.
An I2C/SMBus™-compatible or a JTAG serial interface
configures the MAX16047/MAX16049. These devices are
offered in a 56-pin 8mm x 8mm TQFN package and are
fully specified from -40°C to +85°C.
SMBus is a trademark of Intel Corp.
Features
o Operates from 3V to 14V
o 1% Accurate 10-Bit ADC Monitors 12/8 Inputs
o 12/8 Monitored Inputs with One Overvoltage/
One Undervoltage/One Selectable Limit
o Nonvolatile Fault Event Logger
o Power-Up and Power-Down Sequencing
Capability
o 12/8 Outputs for Sequencing/Power-Good
Indicators
o Closed-Loop Tracking for Up to Four Channels
o Two Programmable Fault Outputs and One Reset
Output
o Six General-Purpose Input/Outputs Configurable as:
Dedicated Fault Output
Watchdog Timer Function
Manual Reset
o I2C/SMBus-Compatible and JTAG Interface
o EEPROM-Configurable Time Delays and
Thresholds
o 100 Bytes of Internal User EEPROM
o 56-Pin (8mm x 8mm) TQFN Package
o -40°C to +85°C Operating Temperature Range
Servers
Workstations
Storage Systems
Networking/Telecom
Applications
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX16047ETN+ -40°C to +85°C 56 TQFN-EP** T5688-3
MAX16049ETN+* -40°C to +85°C 56 TQFN-EP** T5688-3
+Denotes a lead-free package.
*Future product—contact factory for availability.
**EP = Exposed Pad.
Selector Guide and Pin Configurations appear at end of data
sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1 page  
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3V to 14V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 3.3V, TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
OUTPUTS (EN_OUT_, RESET, GPIO_)
Output-Voltage Low
VOL
Output-Voltage High (Push-Pull)
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Output Leakage (Open Drain)
IOUT_LKG
EN_OUT_ Overdrive (Charge
Pump) (EN_OUT1 to EN_OUT6
Only) Volts above VMON_
VOV
CONDITIONS
ISINK = 2mA
ISOURCE = 100µA
GPIO1–GPIO4, VGPIO_ = 3.3V
GPIO1–GPIO4, VGPIO_ = 5V
IGATE_ = 0.5µA
MIN TYP MAX UNITS
0.4 V
2.4 V
1
1 µA
22
4.6 5.1 5.6
V
EN_OUT_ Pullup Current (Charge
Pump)
EN_OUT_ Pulldown Current
(Charge Pump)
INPUTS (A0, GPIO_)
Logic-Input Low Voltage
Logic-Input High Voltage
SMBus INTERFACE
Logic-Input Low Voltage
Logic-Input High Voltage
Input Leakage Current
ICHG_UP
During power-up/power-down,
VGATE_ = 1V
ICHG_DOWN
During power-up/power-down,
VGATE_ = 5V
VIL
VIH
VIL Input voltage falling
VIH Input voltage rising
VCC shorted to GND, SCL/SDA at 0V or
3.3V
Output-Voltage Low
Input Capacitance
SMBus TIMING
Serial Clock Frequency
Bus Free Time Between STOP
START Condition Setup Time
START Condition Hold Time
STOP Condition Setup Time
Clock Low Period
Clock High Period
Data Setup Time
Output Fall Time
Data Hold Time
Pulse Width of Spike Suppressed
VOL ISINK = 3mA
CIN
fSCL
tBUF
tSU:STA
tHD:STA
tSU:STO
tLOW
tHIGH
tSU:DAT
tOF
tHD:DAT
tSP
10pF ≤ CBUS ≤ 400pF
From 50% SCL falling to SDA change
4.5 6
10
µA
µA
0.8 V
2.0 V
0.8 V
2.0 V
-1 +1
µA
-1 +1
0.4 V
5 pF
400 kHz
1.3 µs
0.6 µs
0.6 µs
0.6 µs
1.3 µs
0.6 µs
100 ns
250 ns
0.3 0.9 µs
30 ns
_______________________________________________________________________________________ 5
5 Page 
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
Pin Description
PIN
MAX16047 MAX16049
NAME
FUNCTION
1–8
www.DataSheet4U.com
9–12
13
ADC Monitored Voltage Inputs. Set ADC input range for each MON_ through
1–8 MON1–MON8 configuration registers. Measured values are written to ADC registers and can be read
back through the I2C or JTAG interface.
ADC Monitored Voltage Inputs. Set ADC input range through configuration registers.
— MON9–MON12 Measured values are written to ADC registers and can be read back through the I2C or
JTAG interface.
13
RESET
Configurable Reset Output
14 14
Four-State SMBus Address. Address sampled upon POR. Connect A0 to ground, DBP,
A0 SCL, or SDA to program an individual address when connecting multiple devices. See
the I2C/SMBus-Compatible Serial Interface section.
15
16
17
18
19
20
21, 40
15
16
17
18
19
20
21, 40
SCL
SDA
TMS
TDI
TCK
TDO
GND
SMBus Serial Clock Input
SMBus Serial Data Open-Drain Input/Output
JTAG Test Mode Select
JTAG Test Data In
JTAG Test Clock
JTAG Test Data Out
Ground. Connect all GND connections together.
General-Purpose Input/Output. GPIO6 and GPIO5 are configurable as open-drain or
22
22
GPIO6
push-pull outputs, dedicated fault outputs, or for watchdog functionality. GPIO5 is
configurable as a watchdog input (WDI). GPIO6 is configurable as a watchdog output
23
23
GPIO5
(WDO). GPIO6 is also configurable for margining. Use the EEPROM to configure GPIO5
and GPIO6. See the General-Purpose Inputs/Outputs section.
24 24
Analog Enable Input. Apply a voltage greater than the 0.525V (typ) threshold to enable
EN all outputs. The power-down sequence is triggered when EN falls below 0.5V (typ) and
all outputs are deasserted.
25–36
9–12,
25–36,
53–56
N.C.
No Connection. Must be left unconnected.
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MAX16047.PDF ] | |
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