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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX6683 Datasheet

Temperature Sensor and System Monitor

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19-2226; Rev 1; 7/04
EVAALVUAAILTAIOBNLEKIT
Temperature Sensor and
System Monitor in a 10-Pin µMAX
General Description
The MAX6683 system supervisor monitors multiple
power-supply voltages, including its own, and also fea-
tures an on-board temperature sensor. The MAX6683
converts voltages to an 8-bit code and temperatures to
an 11-bit (10-bit-plus-sign) code using an analog-to-
digital converter (ADC). A multiplexer automatically
sequences through the voltage and temperature mea-
surements. The digitized signals are then stored in reg-
isters and compared to the over/underthreshold limits
programmed over the SMBus™/I2C™-compatible 2-
wire serial interface.
When a temperature measurement exceeds the pro-
grammed threshold, or when an input voltage falls out-
side the programmed voltage limits, the MAX6683
generates a latched interrupt output ALERT. Three
interrupt modes are available for temperature excur-
sions. These are default mode, one-time interrupt
mode, and comparator mode. The ALERT output is
cleared, except for temperature interrupts generated in
comparator mode, by reading the Interrupt Status reg-
ister (Table 5). The ALERT output can also be masked
by writing to the appropriate bits in the Interrupt Mask
register (Table 6) or by setting bit 1 of the Configuration
register (Table 4) to zero. The MAX6683 SMBus/I2C-
compatible interface also responds to the SMB alert
response address.
Applications
Workstations
Servers
Networking
Telecommunications
Features
Monitors Local Temperature
Monitors Three External Voltages (1.8V, 2.5V, 5V
Nominal)
Monitors VCC (3.3V Nominal)
User-Programmable Voltage and Temperature
Thresholds
Alert Function with Ability to Respond to SMB
Alert Response Address
+2.7V to +5.5V Supply Range
-40°C to +125°C Temperature Range
60Hz or 50Hz Line-Frequency Rejection
Tiny 10-Pin µMAX Package
MAX6683EVKIT Available
PART
MAX6683AUB
Ordering Information
TEMP RANGE
-40°C to +125°C
PIN-PACKAGE
10 µMAX
Typical Application Circuit
1.8V
CPU 0.1μF
VCC = +3.3V
TO 1.8V
TO 2.5V
TO 5V
1.8VIN
2.5VIN
5VIN
N.C.
GND
VCC
SCL
SDA
ADD
ALERT
10kΩ
I2C/SMBus
CONTROLLER
TOP VIEW
Pin Configuration
1.8VIN 1
2.5VIN 2
5VIN 3
N.C. 4
GND 5
MAX6683
10 VCC
9 SCL
8 SDA
7 ADD
6 ALERT
SMBus is a trademark of Intel Corp.
I2C is a trademark of Philips Corp.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX6683 Datasheet

Temperature Sensor and System Monitor

No Preview Available !

www.DataSheet.co.kr
Temperature Sensor and
System Monitor in a 10-Pin µMAX
ABSOLUTE MAXIMUM RATINGS
All Voltages Referenced to GND
All Pins...................................................................-0.3V to +6.0V
SDA, ALERT Current ...........................................-1mA to +50mA
Continuous Power Dissipation (TA = +70°C)
10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW
Junction Temperature ......................................................+150°C
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation 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.
ELECTRICAL CHARACTERISTICS
(TA = -40°C to +125°C, unless otherwise noted. Typical values are at VCC = +3.3V, TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
POWER SUPPLY
Supply Voltage
Supply Current
Power-On Reset (POR) Voltage
TEMPERATURE
VCC
ICC Operating
ISD Shutdown mode, interface inactive
VCC, rising or falling edge
2.7
Accuracy
Resolution
TA = +25°C, VCC = +3.3V
0°C TA +125°C, VCC = +3.3V
-40°C TA +125°C, VCC = +3.3V
Read word mode
Supply Sensitivity
PSS
ADC CHARACTERISTICS
Total Unadjusted Error
Differential Nonlinearity
Supply Sensitivity
TUE
DNL
PSS
VIN > 10LSBs
VIN > 10LSBs
Input Resistance
Total Monitoring Cycle Time
SCL, SDA, ADD
Logic Input Low Voltage
Logic Input High Voltage
Input Leakage Current
Output Low Voltage
ALERT
RIN 1.8VIN, 2.5VIN, 5VIN
tc (Note 1)
VIL
VIH
ILEAK
VOL
VCC 3.6V
VCC > 3.6V
VIN = 0 or 5V
ISINK = 3mA
100
2.0
2.6
Output Low Voltage
VOLA
ISINK = 1.2mA, VCC > 2.7V
ISINK = 3.2mA, VCC > 4.5V
TYP MAX UNITS
5.5
200 500
10
2
V
µA
V
0.125
0.7
±3
±4
±6
±1.5
°C
°C
°C/V
±1.5
%
±1 LSB
±1 LSB/V
150 200
kΩ
200 300
ms
0.8 V
V
±1 µA
400 mV
0.3
V
0.4
2 _______________________________________________________________________________________
Datasheet pdf - http://www.DataSheet4U.net/


Part Number MAX6683
Description Temperature Sensor and System Monitor
Maker Maxim Integrated Products
PDF Download

MAX6683 Datasheet PDF






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