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
(T
A
= -40NC to +105NC, unless otherwise noted.)
PARAMETER
V
DD
Operating Voltage
Input Logic-High
Input Logic-Low
Input Logic-High: SCL, SDA
Input Logic-Low: SCL, SDA
V
DD
Rise Time
V
DD
Trace Impedance
SYMBOL
V
DD
V
IH
V
IL
V
I2C_IH
V
I2C_IL
2.7V
P
V
DD
P
3.6V (Note 1)
2.7V
P
V
DD
P
3.6V (Note 1)
From 0V to 2.7V
(Note 1)
CONDITIONS
MIN
2.7
0.7 x
V
DD
0
2.1
0
TYP
MAX
5.5
V
DD
+
0.3
0.3 x
V
DD
V
DD
+
0.3
+0.8
4
5
UNITS
V
V
V
V
V
ms
W
DC ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7V to 5.5V, T
A
= -40NC to +105NC, unless otherwise noted. Typical values are at V
DD
= 3.3V, T
A
= +25NC.)
PARAMETER
Supply Current
Brownout Voltage
Brownout Hysteresis
Internal System Clock
System Clock Error (Note 3)
Output Logic-Low
Output Logic-High
Pullup Current
Maxim Integrated
SYMBOL
I
CPU
I
PROGRAM
V
BO
V
BOH
f
MOSC
(Note 2)
CONDITIONS
MIN
TYP
3.0
8
MAX
UNITS
mA
Monitors V
DD
(Note 1)
Monitors V
DD
(Note 1)
2.40
2.46
30
4.0
2.55
V
mV
MHz
+25NC
P
T
A
P
+85NC
f
ERR:MOSC
-40NC
P
T
A
P
+25NC
-20NC
P
T
A
P
+105NC
V
OL1
V
OH1
I
PU
I
OL
= 4mA (Note 1)
I
OH
= -2mA (Note 1)
V
PIN
= V
SS
, V
DD
= 3.3V
-3
-6.5
-4
V
DD
-
0.5
38
55
+2
+1.6
+2.5
0.4
V
V
107
FA
2
%
MAX34446
PMBus Power-Supply Data Logger
DC ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 5.5V, T
A
= -40NC to +105NC, unless otherwise noted. Typical values are at V
DD
= 3.3V, T
A
= +25NC.)
PARAMETER
ADC Full-Scale Voltage
ADC Full-Scale Temperature Drift
ADC Measurement Resolution
ADC Bit Resolution
RS+ Input Resistance
ADC Integral Nonlinearity
ADC Offset
Internal Temperature
Measurement Error
R
IN
INL
V
OFFSET
T
A
= -40NC to +85NC
T
A
= -40NC to +105NC
T
A
= 0NC to +60NC,
T
DIODE
= +60NC to +120NC
T
A
= 0NC to +60NC,
T
DIODE
= -45NC to +120NC
T
A
= -40NC to +105NC,
T
DIODE
= -45NC to +120NC
-3
-3.5
-1.5
-1.75
-3.5
20
40
50
37
37
775
40
N
FLASH
T
A
= +50NC
T
A
= +50NC
Per temperature sensor
Measurement from POR until monitoring
begins
20,000
100
500
1000
12
(Note 4)
Q2
+3
+3.5
+1.5
+1.75
+3.5
500
60
kHz
%
ms
ms
ms
ms
Write
Cycles
Years
Fs
ms
ms
NC
V
LSB
12
15
Q8
SYMBOL
T
A
=
+25NC
T
A
= -40NC to +105NC
CONDITIONS
MIN
1.22
-0.6
300
TYP
1.225
MAX
1.23
+0.6
UNITS
V
%
FV
Bits
MI
LSB
LSB
NC
Remote Temperature
Measurement Error
(MAX3446 Error Only)
SYNC Frequency Range
SYNC Duty Cycle
Store Default All Time
Nonvolatile Log Write Time
Nonvolatile Log Delete Time
Nonvolatile Log Overwrite Time
Flash Endurance
Data Retention
Current or Voltage Sample Rate
Temperature Sample Rate
Device Startup Time
Maxim Integrated
3
MAX34446
PMBus Power-Supply Data Logger
I
2
C/SMBus INTERFACE ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7V to 5.5V, T
A
= -40NC to +105NC, unless otherwise noted. Typical values are at V
DD
= 3.3V, T
A
= +25NC.)
PARAMETER
SCL Clock Frequency
Bus Free Time Between STOP
and START Conditions
Hold Time (Repeated) START
Condition
Low Period of SCL
High Period of SCL
Data Hold Time
Data Setup Time
START Setup Time
SDA and SCL Rise Time
SDA and SCL Fall Time
STOP Setup Time
Clock Low Timeout
SYMBOL
f
SCL
t
BUF
t
HD:STA
t
LOW
t
HIGH
t
HD:DAT
t
SU:DAT
t
SU:STA
t
R
t
F
t
SU:STO
t
TO
4.0
25
35
Receive
Transmit
(Note 5)
CONDITIONS
MIN
10
4.7
4.0
4.7
4.0
0
300
100
4.7
300
300
TYP
MAX
100
UNITS
kHz
Fs
Fs
Fs
Fs
ns
ns
Fs
ns
ns
Fs
ms
Note 1:
All voltages are referenced to ground (V
SS
). Currents entering the device are specified as positive, and currents exiting
the device are specified as negative.
Note 2:
This does not include pin input/output currents.
Note 3:
Guaranteed by design; not production tested.
Note 4:
ADC has no missing codes.
Note 5:
Commands MFR_MODE, STORE_DEFAULT_ALL, and RESTORE_DEFAULT_ALL require a bus free time of 250ms.
I
2
C/SMBus Timing
SDA
t
BUF
t
LOW
SCL
t
HIGH
t
HD:DAT
STOP
START
t
SU:DAT
REPEATED
START
t
F
t
HD:STA
t
SP
t
HD:STA
t
R
t
SU:STA
t
SU:STO
NOTE:
TIMING IS REFERENCED TO V
IL(MAX)
AND V
IH(MIN)
.
Maxim Integrated
4
MAX34446
PMBus Power-Supply Data Logger
Typical Operating Characteristics
(V
DD
= 2.7V to 5.5V, T
A
= -40NC to +105NC, unless otherwise noted. Typical values are at V
stm32/stm8
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