Data Logger. MAX34446 Datasheet

MAX34446 Logger. Datasheet pdf. Equivalent

MAX34446 Datasheet
Recommendation MAX34446 Datasheet
Part MAX34446
Description PMBus Power-Supply Data Logger
Feature MAX34446; EVALUATION KIT AVAILABLE MAX34446 PMBus Power-Supply Data Logger General Description The MAX34446 .
Manufacture Maxim Integrated
Datasheet
Download MAX34446 Datasheet




Maxim Integrated MAX34446
EVALUATION KIT AVAILABLE
MAX34446
PMBus Power-Supply Data Logger
General Description
The MAX34446 data logger for power supplies can
monitor voltages for overvoltage and undervoltage, as
well as for overcurrent conditions and overtemperature
conditions. The device constantly checks for user-
programmable thresholds; when these thresholds are
exceeded, the device logs the recent real-time operating
conditions in nonvolatile flash memory. The device can
monitor up to four voltages or currents, and can monitor
three temperature sensors. See the Typical Application
Circuit/Block Diagram for more details.
Applications
Base Stations
Industrial Controls
Network Switches/Routers
Servers
Smart Grid Network Systems
Ordering Information appears at end of data sheet.
Features
S Voltage, Current, and Temperature Measurement
and Threshold Excursion Detection
S Supports Up to Four Voltage or Current
Measurements
S Supports Up to Three Temperature Sensors: Two
Remote Diodes Plus an Internal Sensor
S Calculates Power Consumption
S Differential 12-Bit ADC
S PMBus™-Compliant Control Interface
S Power-Good Outputs
S Individual Fault Outputs
S On-Board Nonvolatile Fault Logging and Default
Configuration Setting
S I2C/SMBus-Compatible Serial Bus with Bus
Timeout Function
S No External Clocking Required
S 2.7V to 5.5V Supply Voltage
S Low Power Consumption
S -40NC to +105NC Temperature Range
S 40-Pin TQFN (6mm x 6mm) Package
Typical Application Circuit/Block Diagram appears at end
of data sheet.
PMBus is a trademark of SMIF, Inc.
For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX34446.related
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-5879; Rev 3; 10/13



Maxim Integrated MAX34446
MAX34446
PMBus Power-Supply Data Logger
ABSOLUTE MAXIMUM RATINGS
VDD to VSS............................................................-0.3V to +5.5V
SDA or SCL to VSS................................................-0.3V to +5.5V
RS-[5:0] to VSS......................................................-0.3V to +0.3V
RS+[5:0] to VSS...... -0.3V to (VDD + 0.3V), not to exceed +5.5V
RS+[5:0] to VSS with 100ω of series resistance...-0.3V to +2.0V
All other pins
relative to VSS..... -0.3V to (VDD + 0.3V), not to exceed +5.5V
All other pins relative to VSS with greater than
750ω of series resistance................................... -0.3V to 5.5V
REG18 to VSS........................................................-0.3V to +2.0V
REG25 to VSS............................................................... -0.3V to +0.3V
Continuous Power Dissipation (TA = +70NC)
TQFN (derate 35.7mW/NC above +70C).................2857.1mW
Operating Temperature Range......................... -40NC to +105NC
Storage Temperature Range............................. -55NC to +125NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
(TA = -40NC to +105NC, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
VDD Operating Voltage
VDD (Note 1)
Input Logic-High
VIH
Input Logic-Low
VIL
Input Logic-High: SCL, SDA
Input Logic-Low: SCL, SDA
VDD Rise Time
VDD Trace Impedance
VI2C_IH
VI2C_IL
2.7V P VDD P 3.6V (Note 1)
2.7V P VDD P 3.6V (Note 1)
From 0V to 2.7V
MIN
2.7
0.7 x
VDD
0
2.1
0
TYP
MAX
5.5
VDD +
0.3
0.3 x
VDD
VDD +
0.3
+0.8
4
5
UNITS
V
V
V
V
V
ms
W
DC ELECTRICAL CHARACTERISTICS
(VDD = 2.7V to 5.5V, TA = -40NC to +105NC, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +25NC.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Supply Current
Brownout Voltage
Brownout Hysteresis
Internal System Clock
System Clock Error (Note 3)
Output Logic-Low
Output Logic-High
ICPU
IPROGRAM
VBO
VBOH
fMOSC
fERR:MOSC
VOL1
(Note 2)
Monitors VDD (Note 1)
Monitors VDD (Note 1)
+25NC P TA P +85NC
-40NC P TA P +25NC
-20NC P TA P +105NC
IOL = 4mA (Note 1)
VOH1 IOH = -2mA (Note 1)
3.0
8
2.40 2.46 2.55
30
4.0
-3 +2
-6.5 +1.6
-4 +2.5
0.4
VDD -
0.5
Pullup Current
IPU VPIN = VSS, VDD = 3.3V
38 55 107
UNITS
mA
V
mV
MHz
%
V
V
FA
Maxim Integrated
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Maxim Integrated MAX34446
MAX34446
PMBus Power-Supply Data Logger
DC ELECTRICAL CHARACTERISTICS (continued)
(VDD = 2.7V to 5.5V, TA = -40NC to +105NC, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +25NC.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
ADC Full-Scale Voltage
ADC Full-Scale Temperature Drift
ADC Measurement Resolution
ADC Bit Resolution
VLSB
TA = +25NC
TA = -40NC to +105NC
1.22
-0.6
12
1.225
300
1.23
+0.6
RS+ Input Resistance
ADC Integral Nonlinearity
RIN
INL (Note 4)
15
Q8
ADC Offset
Internal Temperature
Measurement Error
Remote Temperature
Measurement Error
(MAX3446 Error Only)
SYNC Frequency Range
VOFFSET
TA = -40NC to +85NC
TA = -40NC to +105NC
TA = 0NC to +60NC,
TDIODE = +60NC to +120NC
TA = 0NC to +60NC,
TDIODE = -45NC to +120NC
TA = -40NC to +105NC,
TDIODE = -45NC to +120NC
-3
-3.5
-1.5
-1.75
-3.5
20
Q2
+3
+3.5
+1.5
+1.75
+3.5
500
SYNC Duty Cycle
40 50 60
Store Default All Time
37
Nonvolatile Log Write Time
37
Nonvolatile Log Delete Time
775
Nonvolatile Log Overwrite Time
40
Flash Endurance
Data Retention
Current or Voltage Sample Rate
Temperature Sample Rate
Device Startup Time
NFLASH
TA = +50NC
TA = +50NC
Per temperature sensor
Measurement from POR until monitoring
begins
20,000
100
500
1000
12
UNITS
V
%
FV
Bits
MI
LSB
LSB
NC
NC
kHz
%
ms
ms
ms
ms
Write
Cycles
Years
Fs
ms
ms
Maxim Integrated
  3







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