Rainbow Electronics MAX34441 - Manual (Page 7)

PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller
MAX34441
7
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 F V
ADC Bit Resolution 12 Bits
RS+ Input Resistance R IN 15 MI
ADC Integral Nonlinearity INL
Q
4 LSB
ADC Differential Nonlinearity DNL Q 1 LSB
ADC Offset V OFFSET Q 2 LSB
Internal Temperature
Measurement Error
T A = -40NC to +85NC -3 +3 N C
Remote Temperature
Measurement Error
(MAX34441 Error Only)
T A = 0NC to +60NC,
T DIODE = +60NC to +120NC
-1.5 +1.5
N C
T A = 0NC to +60NC,
T
DIODE
= -45NC to +120NC
-1.75 +1.75
T A = -40NC to +85NC,
T DIODE = +60NC to +120NC
-2.75 +2.75
T A = -40NC to +85NC,
T DIODE = -45NC to +120NC
-3.0 +3.0
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
RPM Sample Rate 1000 ms
Temperature Sample Rate 1000 ms
Device Startup Time
Measured from POR until monitoring
begins
12 ms
PWM Frequency
Power supply 62.5 kHz
Fan 30 25,000 Hz
PWM Resolution
Power supply 6
Bits
Fan 7