|
|
PDF MAX16048 Data sheet ( Hoja de datos )
| Número de pieza | MAX16048 | |
| Descripción | (MAX16046 / MAX16048) 12-Channel/8-Channel EEPROM-Programmable System Managers | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MAX16048 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
19-1050; Rev 0; 10/07
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
General Description
The MAX16046/MAX16048 EEPROM-configurable system
managers monitor, sequence, track, and margin multiple
system voltages. The MAX16046 manages up to twelve
system voltages simultaneously, and the MAX16048 man-
ages up to eight supply voltages. These devices integrate
an analog-to-digital converter (ADC) for monitoring supply
voltages, digital-to-analog converters (DAC) for adjusting
www.DataSheest4uUp.cpolymvoltages, and configurable outputs for sequencing
and tracking 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 readback 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
(MAX16046) or up to eight (MAX16048) 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 MAX16046/MAX16048 include twelve/eight inte-
grated 8-bit DAC outputs for margining power supplies
when connected to the trim input of a point-of-load
(POL) module.
The MAX16046/MAX16048 include six programmable
general-purpose inputs/outputs (GPIOs). GPIOs are
EEPROM configurable as dedicated fault outputs, as a
watchdog input or output (WDI/WDO), as a manual reset
(MR), or for margin control inputs.
The MAX16046/MAX16048 feature two methods of fault
management for recording information during system
shutdown 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 or a JTAG serial interface configures the
MAX16046/MAX16048. These devices are offered in a
56-pin 8mm x 8mm TQFN package and are fully speci-
fied from -40°C to +85°C.
Selector Guide and Pin Configurations appear at end of data
sheet.
Features
o Operates from 3V to 14V
o 1% Accurate 10-Bit ADC Monitors 12/8 Inputs
o 12/8 Monitored Inputs with 1 Overvoltage/
1 Undervoltage/1 Selectable Limit
o 12/8 8-Bit DAC Outputs for Margining or Voltage
Adjustments
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
Margin Enable Input
o I2C (with Timeout) and JTAG Interface
o EEPROM-Configurable Time Delays, Thresholds,
and DAC Outputs
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
MAX16046ETN+ -40°C to +85°C 56 TQFN-EP**
MAX16048ETN+* -40°C to +85°C 56 TQFN-EP**
+Denotes a lead-free package.
*Future product—contact factory for availability.
**EP = Exposed pad.
T5688-3
T5688-3
________________________________________________________________ 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
CONDITIONS
IDACOUT = ±50µA, mid
code, DACOUT_ range
set to ‘11’
TA = +25°C
TA = -40°C to
+85°C
www.DataSheet4DUA.cComCenter Code Absolute
Accuracy
DACACC
IDACOUT = ±50µA, mid
code, DACOUT_ range
set to ‘10’
TA = +25°C
TA = -40°C to
+85°C
IDACOUT = ±50µA, mid
code, DACOUT_ range
set to ‘01’
TA = +25°C
TA = -40°C to
+85°C
Gain Error
Any range
DAC Output Sink Capability
DAC Output Source Capability
DAC Output Switch Leakage
DACSINK Sinking current, IDACOUTMAX = 0.5mA
DACSOURCE Sourcing current, IDACOUTMAX = -0.5mA
DACOUT_ switch off
DAC Output Capacitive Load
(Note 5)
DAC Output Settling Time
DAC Power-Supply Rejection
Ratio
DC
DACPSRR 100mV step in 20ns with 50pF load
DAC Differential Nonlinearity
DACDNL
DACOUT_ code from 07h to F8h,
any range
DAC Integral Nonlinearity
DACINL
OUTPUTS (EN_OUT_, RESET, GPIO_)
DACOUT_ code from 07h to F8h,
any range
Output-Voltage Low
Output-Voltage High (Push-Pull)
VOL ISINK = 2mA
ISOURCE =100µA
Output Leakage (Open Drain)
EN_OUT_ Overdrive (Charge
Pump) (EN_OUT1 to EN_OUT6
Only) Volts above VMON_
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
IOUT_LKG
GPIO1–GPIO4, VGPIO_ = 3.3V
GPIO1–GPIO4, VGPIO_ = 5.0V
VOV IGATE_ = 0.5µA
ICHG_UP
During power-up/power-down,
VGATE_ = 1V
During power-up/power-down,
ICHG_DOWN VGATE_ = 5V
VIL
VIH
VIL Input voltage falling
VIH Input voltage rising
MIN TYP MAX
1.1660 1.2016 1.2060
1.1900 1.2016 1.2130
0.897 0.901 0.905
0.890 0.901 0.912
0.597 0.601 0.605
0.592 0.601 0.612
-0.8
-8
-150
+0.8
+8
+150
50
50
60
40
-0.6 +0.6
-0.9 +0.9
0.4
2.4
1
1
22
4.6 5.1 5.6
4.5 6
10
0.8
2.0
0.8
2.0
UNITS
V
%
mV
mV
nA
pF
µs
dB
LSB
LSB
V
V
µA
V
µA
µA
V
V
V
V
_______________________________________________________________________________________ 5
5 Page 
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
Pin Description
PIN
MAX16046 MAX16048
NAME
FUNCTION
1–8
www.DataSheet4U.com
9–12
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
14
15
16
17
18
19
20
21, 40
22
23
9–12,
33–36,
53–56
13
14
15
16
17
18
19
20
21, 40
22
23
24 24
N.C.
RESET
A0
SCL
SDA
TMS
TDI
TCK
TDO
GND
GPIO6
GPIO5
EN
No Connection. Must be left unconnected.
Configurable Reset Output
Four-State SMBus Address. Address sampled upon POR. Connect A0 to ground, DBP,
SCL, or SDA to program an individual address when connecting multiple devices. See
the I2C/SMBus-Compatible Serial Interface section.
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
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
(WDO). These inputs/outputs are also configurable for margining. Use the EEPROM to
configure GPIO5 and GPIO6. See the General-Purpose Inputs/Outputs section.
Analog Enable Input. Apply a voltage greater than the 0.525V (typ) threshold to enable
all outputs. The power-down sequence is triggered when EN falls below 0.5V (typ) and
all outputs are deasserted.
25–32
25–32
DACOUT1–
DACOUT8
DAC Outputs. DACOUT1–DACOUT8 are the outputs of an internal 8-bit DAC. Set
DACOUT1–DACOUT8 ranges through configuration registers. Connect a DACOUT_ to
an external DC-DC converter for margining. Leave DACOUT_ outputs unconnected, if
unused.
33–36
DAC Outputs. DACOUT9–DACOUT12 are the outputs of an internal 8-bit DAC. Set
DACOUT9– DACOUT9–DACOUT12 ranges through configuration registers. Connect a DACOUT_ to
— DACOUT12 an external DC-DC converter for margining. Leave DACOUT_ outputs unconnected, if
unused.
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MAX16048.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MAX1604 | Dual-Channel CardBus and PCMCIA Power Switches with SMBus Serial Interface |  Maxim Integrated |
| MAX16040 | (MAX16033 - MAX16040) Low-Power Battery Backup Circuits | Maxim Integrated Products |
| MAX16041 | Sequencing/Supervisory Circuits | Maxim Integrated Products |
| MAX16042 | Sequencing/Supervisory Circuits | Maxim Integrated Products |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |