MAX31785 MAXIM [Maxim Integrated Products], MAX31785 Datasheet - Page 7

• Manufacturer Part Number: MAX31785
• Description: 6-Channel Intelligent Fan Controller
• Manufacturer: MAXIM [Maxim Integrated Products]

DC ELECTRICAL CHARACTERISTICS (continued)
(V
ADC Internal Reference
Temperature Drift
ADC Internal Reference Initial
Accuracy (+25NC)
ADC Full-Scale Input Voltage
ADC Measurement Resolution
ADC Bit Resolution
RS+ Input Resistance
ADC Integral Nonlinearity
ADC Differential Nonlinearity
ADC Offset
Internal Temperature
Measurement Error
Remote Temperature
Measurement Error
(MAX31785 Error Only)
Store Default All Time
Nonvolatile Log Write Time
Nonvolatile Log Delete Time
Flash Endurance
Data Retention
Voltage Sample Rate
RPM Sample Rate
Temperature Sample Rate
Device Startup Time
Fan PWM Frequency
Fan PWM Resolution
DD
= 2.7V to 5.5V, T
PARAMETER
A
= -40NC to +85NC, unless otherwise noted. Typical values are at V
6-Channel Intelligent Fan Controller
SYMBOL
V
N
OFFSET
V
DNL
FLASH
V
R
INL
LSB
FS
IN
T
T
T
T
T
T
T
T
T
T
T
Measured from POR until monitoring
begins
A
A
DIODE
A
DIODE
A
DIODE
A
DIODE
A
A
= -40NC to +85NC
= 0NC to +60NC,
= 0NC to +60NC,
= -40NC to +85NC,
= -40NC to +85NC,
= +50NC
= +50NC
= +60NC to +120NC
= -45NC to +120NC
= +60NC to +120NC
= -45NC to +120NC
CONDITIONS
DD
= 3.3V, T
20,000
1.213
-1.75
-2.75
MIN
-0.5
-1.5
-3.0
100
12
15
30
-1
-3
A
= +25NC, unless otherwise noted.)
1.225
1000
1000
TYP
300
200
Q2
45
12
10
12
7
25,000
+1.75
+2.75
1.237
MAX
+0.5
+1.5
+3.0
+1
Q4
Q1
+3
Cycles
UNITS
Years
Write
LSB
LSB
LSB
Bits
Bits
MI
mV
ms
ms
ms
ms
ms
ms
ms
Hz
FV
NC
NC
%
V
7