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MAX1805MEE

Description
Board Mount Temperature Sensors Multichannel Remote/Local Temperature Sensor with SMBus Serial Interface(2 Remote,1 Local)
CategoryThe sensor   
File Size276KB,17 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX1805MEE Overview

Board Mount Temperature Sensors Multichannel Remote/Local Temperature Sensor with SMBus Serial Interface(2 Remote,1 Local)

MAX1805MEE Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
package instruction0.150 INCH, QSOP-16
Reach Compliance Codenot_compliant
Factory Lead Time1 week
Maximum accuracy (Celsius)3 Cel
body width3.9 mm
body height1.72 mm
Body length or diameter4.89 mm
shellPLASTIC
JESD-609 codee0
Installation featuresSURFACE MOUNT
Number of digits8
Number of terminals16
Maximum working current0.01 mA
Maximum operating temperature125 °C
Minimum operating temperature
Output interface type2-WIRE INTERFACE
Package body materialPLASTIC/EPOXY
Encapsulate equivalent codeSSOP16,.25
Package Shape/FormRECTANGULAR
power supply3.3/5 V
Sensor/temperature sensor typeTEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
Maximum supply voltage5.5 V
Minimum supply voltage3 V
surface mountYES
Terminal surfaceTin/Lead (Sn85Pb15)
Termination typeSOLDER
19-1766; Rev 2; 5/03
Multichannel Remote/Local
Temperature Sensors
________________General Description
The MAX1668/MAX1805/MAX1989 are precise multi-
channel digital thermometers that report the tempera-
ture of all remote sensors and their own packages. The
remote sensors are diode-connected transistors—typi-
cally low-cost, easily mounted 2N3904 NPN types—that
replace conventional thermistors or thermocouples.
Remote accuracy is ±3°C for multiple transistor manu-
facturers, with no calibration needed. The remote chan-
nels can also measure the die temperature of other ICs,
such as microprocessors, that contain an on-chip,
diode-connected transistor.
The 2-wire serial interface accepts standard system
management bus (SMBus™) write byte, read byte, send
byte, and receive byte commands to program the alarm
thresholds and to read temperature data. The data for-
mat is 7 bits plus sign, with each bit corresponding to
1°C, in two’s-complement format.
The MAX1668/MAX1805/MAX1989 are available in
small, 16-pin QSOP surface-mount packages. The
MAX1989 is also available in a 16-pin TSSOP.
____________________________Features
o
Multichannel
4 Remote, 1 Local (MAX1668/MAX1989)
2 Remote, 1 Local (MAX1805)
o
No Calibration Required
o
SMBus 2-Wire Serial Interface
o
Programmable Under/Overtemperature Alarms
o
Supports SMBus Alert Response
o
Accuracy
±2°C (+60°C to +100°C, Local)
±3°C (-40°C to +125°C, Local)
±3°C (+60°C to +100°C, Remote)
o
3µA (typ) Standby Supply Current
o
700µA (max) Supply Current
o
Small, 16-Pin QSOP/TSSOP Packages
MAX1668/MAX1805/MAX1989
_______________Ordering Information
________________________Applications
Desktop and Notebook
Computers
LAN Servers
Industrial Controls
Central-Office Telecom
Equipment
Test and Measurement
Multichip Modules
PART
MAX1668MEE
MAX1805MEE
MAX1989MEE
MAX1989MUE
TEMP RANGE
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
PIN-PACKAGE
16 QSOP
16 QSOP
16 QSOP
16 TSSOP
Pin Configuration
TOP VIEW
DXP1 1
DXN1 2
DXP2 3
DXN2 4
(N.C.) DXP3 5
(N.C.) DXN3 6
(N.C.) DXP4 7
(N.C.) DXN4 8
16 GND
15 STBY
14 SMBCLK
Typical Operating Circuit
0.1µF
3V TO 5.5V
200Ω
V
CC
STBY
10kΩ EACH
MAX1668
MAX1805
MAX1989
MAX1668
MAX1805
MAX1989
13 SMBDATA
12 ALERT
11 ADD0
10 ADD1
9
V
CC
DXP1
2200pF
SMBCLK
SMBDATA
ALERT
CLOCK
DATA
INTERRUPT
TO
µC
*
DXN1
DXP4
2200pF
*
DXN4
ADD0 ADD1 GND
QSOP/TSSOP
( ) ARE FOR MAX1805.
*
DIODE-CONNECTED TRANSISTOR
†Pg
1
SMBus is a trademark of Intel Corp.
________________________________________________________________
Maxim Integrated Products
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.

MAX1805MEE Related Products

MAX1805MEE MAX1805MEE-T MAX1989MEE/GG8
Description Board Mount Temperature Sensors Multichannel Remote/Local Temperature Sensor with SMBus Serial Interface(2 Remote,1 Local) Board Mount Temperature Sensors Multichannel Remote/Local Temperature Sensor with SMBus Serial Interface(2 Remote,1 Local) Serial Switch/Digital Sensor,
Is it lead-free? Contains lead Contains lead Contains lead
Is it Rohs certified? incompatible incompatible incompatible
Maker Maxim Maxim Maxim
Reach Compliance Code not_compliant not_compliant compliant
Maximum accuracy (Celsius) 3 Cel 3 Cel 3 Cel
body width 3.9 mm 3.9 mm 3.9 mm
body height 1.72 mm 1.72 mm 1.73 mm
Body length or diameter 4.89 mm 4.89 mm 4.89 mm
Installation features SURFACE MOUNT SURFACE MOUNT SURFACE MOUNT
Number of digits 8 8 8
Maximum working current 0.01 mA 0.01 mA 0.7 mA
Maximum operating temperature 125 °C 125 °C 125 °C
Output interface type 2-WIRE INTERFACE 2-WIRE INTERFACE 2-WIRE INTERFACE
Package Shape/Form RECTANGULAR RECTANGULAR RECTANGULAR
Maximum supply voltage 5.5 V 5.5 V 5.5 V
Minimum supply voltage 3 V 3 V 4.5 V
surface mount YES YES YES
Termination type SOLDER SOLDER SOLDER
package instruction 0.150 INCH, QSOP-16 0.150 INCH, QSOP-16 -
shell PLASTIC PLASTIC -
JESD-609 code e0 e0 -
Number of terminals 16 16 -
Package body material PLASTIC/EPOXY PLASTIC/EPOXY -
Encapsulate equivalent code SSOP16,.25 SSOP16,.25 -
power supply 3.3/5 V 3.3/5 V -
Sensor/temperature sensor type TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL -
Terminal surface Tin/Lead (Sn85Pb15) Tin/Lead (Sn85Pb15) -
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