Datasheet

PMBus 6-Channel Power-Supply Manager
MAX34440
7Maxim Integrated
DC ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 5.5V, T
A
= -40NC to +85NC, unless otherwise noted. Typical values are at V
DD
= 3.3V, T
A
= +25NC, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
ADC Internal Reference Initial
Accuracy (+25NC)
-1 +1 mV
ADC Full-Scale Input Voltage V
FS
1.213 1.225 1.237 V
ADC Measurement Resolution V
LSB
300
FV
ADC Bit Resolution 12 Bits
RS+ Input Resistance R
IN
15
MI
ADC Integral Nonlinearity INL (Note 4)
Q8
LSB
ADC Offset V
OFFSET
Q2
LSB
Internal Temperature
Measurement Error
T
A
= -40NC to +85NC
-3 +3
NC
Store Default All Time 37 ms
Nonvolatile Log Write Time 12 ms
Nonvolatile Log Delete Time 200 ms
Flash Endurance N
FLASH
T
A
= +50NC
20,000
Write
Cycles
Data Retention
T
A
= +50NC
100 Years
Voltage Sample Rate 5 ms
Current Sample Rate 200 ms
Temperature Sample Rate 1000 ms
Device Startup Time
Measurement from POR until monitoring
begins
12 ms
PWM Frequency Power supply 62.5 kHz
PWM Resolution Power supply 6 Bits