Datasheet

Alarm
Detectors
AMC6821
FAN-FAULT
V
DD
THERM
OVR
IN+
IN-
Remote
Temperature
Sensing
Temperature
Data
MUX
On-Chip
TemperatureSensor
Ref
ADC
(11-Bit)
SMBus
I C
2
Interface
PWM
Driver
TACH-DATA
TACHCOUNTER
AutoFanSpeed
Controller
PWM-MODE
PWM-Out
TACH
A0
A1
SCLK
SDA
SMBALERT
GND
ABSOLUTE MAXIMUM RATINGS
(1)
RECOMMENDED OPERATING CONDITIONS
AMC6821-Q1
SBAS475 – JUNE 2009 ...................................................................................................................................................................................................... www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
Functional Block Diagram
NOTE: Patents 7, 083,328 and 7,098,617
over operating free-air temperature range (unless otherwise noted)
V
DD
to GND – 0.3 V to 6.5 V
Digital input voltage to GND – 0.3 V to 6.5 V
Input current 10 mA
Select pins A0, A1, PWM-MODE to GND – 0.3 V to V
DD
+ 0.3 V
Analog input voltage to GND – 0.3 V to V
DD
+ 0.3 V
Operating temperature range – 40 ° C to 125 ° C
Storage temperature range – 65 ° C to 150 ° C
Junction temperature (T
J
Max) 150 ° C
(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may
degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those specified is not implied.
MIN NOM MAX UNIT
Operating V
DD
2.7 5 5.5 V
Specified V
DD
3 5 V
Operating temperature – 40 125 ° C
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Product Folder Link(s): AMC6821-Q1